Posts

Posted on

The Anatomy of the Peroneal Muscles

The peroneal muscles—more precisely termed the fibularis muscles—form the lateral compartment of the leg and are central to foot eversion, ankle stability, and dynamic balance. The principal muscles are fibularis longus and fibularis brevis, both innervated by the superficial fibular nerve and both passing behind the lateral malleolus before inserting in the foot.

Compartmental Location

The lateral compartment lies between the anterior crural intermuscular septum anteriorly and the posterior crural intermuscular septum posteriorly. It contains fibularis longus superficially and fibularis brevis deep to it, with the superficial fibular nerve descending between fibularis longus and extensor digitorum longus.

This compartment is functionally distinct from the anterior compartment, which principally dorsiflexes the foot, and from the superficial posterior compartment, which plantarflexes it. The peroneal muscles contribute to plantarflexion as a secondary action, but their defining action is eversion.

Fibularis Longus

Fibularis longus is the larger and more proximal of the two peroneal muscles. It originates from the head and proximal two-thirds of the lateral fibular shaft, together with adjacent intermuscular septa and deep fascia.

Its muscle belly descends the lateral leg and becomes tendinous in the distal half of the leg. The tendon passes posterior to the lateral malleolus, where it lies posterior to the fibularis brevis tendon, then turns inferiorly and anteriorly across the lateral foot.

A distinctive feature of fibularis longus is its long plantar course. The tendon enters the sole, passes through a fibro-osseous tunnel beneath the cuboid formed with the long plantar ligament, and crosses obliquely across the plantar surface of the foot. It inserts on the plantar base of the first metatarsal and the adjacent medial cuneiform.

This plantar route gives fibularis longus a unique biomechanical role. By pulling the first ray downward and medially, it plantarflexes the first ray, stabilises the medial column during stance, and helps maintain the transverse and longitudinal arches of the foot.

Fibularis Brevis

Fibularis brevis is shorter and lies deep and anterior to fibularis longus. It arises from the distal two-thirds of the lateral fibular surface and the adjacent intermuscular septa.

Its tendon forms proximal to the ankle and passes behind the lateral malleolus anterior to the fibularis longus tendon. Unlike fibularis longus, it does not enter the sole; instead, it crosses the lateral aspect of the foot to insert on the tuberosity at the base of the fifth metatarsal.

Because its insertion is directly lateral, fibularis brevis acts as a direct evertor of the foot. It is often regarded as the dominant evertor, contributing a large proportion of total eversion force, while also assisting plantarflexion

Tendon Course and Retinacula

Both peroneal tendons share a similar proximal course behind the lateral malleolus, where they are retained by the superior peroneal retinaculum. This retinaculum extends from the distal fibula toward the calcaneus and Achilles region, preventing tendon displacement from the retro-malleolar groove.

Distal to this, the inferior peroneal retinaculum binds the tendons against the lateral calcaneus. Proximally the tendons share a common synovial sheath beneath the superior retinaculum; more distally, they are enclosed in separate sheaths.

At the peroneal tubercle of the calcaneus, the tendons separate: fibularis brevis passes above the tubercle toward the fifth metatarsal, while fibularis longus passes below it and continues into the plantar foot. The fibularis longus tendon is then guided through the cuboid tunnel before reaching its medial forefoot insertion.

Innervation and Blood Supply

Both fibularis longus and fibularis brevis receive motor innervation from the superficial fibular nerve, with segmental contributions commonly described as L5 and S1. The superficial fibular nerve arises from the common fibular nerve at the fibular neck and descends within the lateral compartment.

The arterial supply is derived from branches of the anterior tibial and fibular arteries. This vascular arrangement reflects the compartment’s position between the anterior and posterior leg compartments.

Functional Anatomy

The primary action of both muscles is eversion, lifting the lateral border of the foot and lowering the medial border. They also assist plantarflexion, particularly because their tendons pass posterior to the ankle’s axis of rotation

Their most important clinical function is dynamic lateral ankle stabilisation. During walking and running, rapid eccentric contraction of the peroneals resists sudden inversion, protecting the lateral ligament complex after an unexpected perturbation. This is why peroneal weakness or delayed reaction is commonly associated with recurrent inversion ankle sprains.

Fibularis longus has an additional forefoot-specific role. Its pull on the first metatarsal and medial cuneiform helps oppose the dorsiflexion-inversion effect of tibialis anterior on the medial ray, contributing to balanced load distribution across the forefoot.

Clinical Relevance

The anatomy of the peroneal muscles explains several common disorders. The tendons’ retro-malleolar course and retention by the superior retinaculum make them vulnerable to tenosynovitis, tendinopathy, and dislocation, particularly after ankle trauma or in activities involving repeated eversion and plantarflexion.

The fibularis brevis insertion at the fifth metatarsal base is clinically important because traction forces here can contribute to avulsion injury following an inversion sprain. Conversely, fibularis longus pathology may affect first-ray loading and contribute to forefoot pain or instability because of its plantar insertion.[pmc.ncbi.nlm.nih][sciencedirect]

Finally, lesions of the common fibular nerve at the fibular neck can denervate the lateral compartment, producing weakness of eversion and a characteristic vulnerability to inversion injuries. Understanding the peroneal muscles therefore requires integrating their osseous attachments, tendon pathways, nerve supply, and functional role in gait.

The peroneal muscles are anatomically compact but functionally significant. Fibularis longus and fibularis brevis originate from the fibula, pass behind the lateral malleolus, and insert on opposite sides of the foot—the longus medially on the first ray and the brevis laterally on the fifth metatarsal. This arrangement enables powerful eversion, assists plantarflexion, stabilises the ankle, and supports the arches. Their tendon anatomy also explains their susceptibility to overuse and traumatic disorders, making them essential structures in both biomechanical assessment and clinical management of lateral ankle and foot pain.

Posted on

How Parkinson’s Disease Can Affect Foot Care

Parkinson’s disease (PD) is a progressive neurological disorder that affects movement, muscle tone, balance and coordination. Although its most recognised symptoms include tremor, rigidity and slowness of movement, the disease can have a substantial impact on foot health and the ability to perform routine foot care. Changes in gait, reduced dexterity, dystonia, swelling, altered sensation and difficulty managing footwear may increase the risk of pain, skin injury and falls. Effective foot care should therefore be regarded as an important component of multidisciplinary Parkinson’s management rather than as a minor hygiene issue.

Effects on gait and foot function

Parkinson’s disease commonly alters the normal walking cycle. People may develop shorter steps, shuffling, reduced foot clearance and difficulty initiating movement. Some experience “freezing of gait”, in which the feet appear to become temporarily stuck to the floor, particularly when turning, approaching a doorway or moving in a confined space. Festination may also occur, with increasingly rapid but short steps as the person’s centre of mass moves forward. These changes reduce stability and increase the likelihood of catching the toes on rugs, thresholds or uneven ground. Foot-health problems can further worsen postural instability and walking difficulty, creating a cycle in which painful or poorly functioning feet increase fall risk.

Rigidity may restrict movement at the ankle and foot. A person may have difficulty achieving normal heel strike, ankle dorsiflexion and toe-off, and may instead walk with a flat-footed or forefoot-loading pattern. Reduced ankle movement can increase pressure beneath the forefoot or heel and may contribute to callus formation. Stiffness in the calf and ankle can also make a heel-to-toe pattern difficult to maintain. Consequently, routine walking may cause fatigue, discomfort and compensatory loading elsewhere in the lower limb.

Dystonia, deformity and pressure

Some people with Parkinson’s develop foot dystonia, an involuntary and often painful muscle contraction. The toes may curl underneath, the great toe may extend, or the foot may turn inward. The ankle can adopt an inverted or equinovarus position, causing pressure on areas that would not normally bear substantial load. Dystonia may be more pronounced during walking or at particular times in relation to medication. It can make the foot difficult to place inside a shoe and may produce pressure over the dorsum, sides or tips of the toes.

Persistent abnormal postures may contribute to claw or hammer toes, contractures and focal areas of callus. A shoe that previously fitted comfortably may become restrictive as the position of the toes or ankle changes. Pressure from footwear can result in blisters, corns, nail trauma or breaks in the skin. Where circulation, sensation or general health is compromised, even a small lesion may take longer to resolve. Foot deformity can also increase pain and further disturb gait, making mobility and balance more difficult.

Difficulty with self-care

Bradykinesia, tremor, rigidity and impaired coordination can make ordinary foot-care tasks challenging. Cutting toenails requires adequate hip and spinal mobility, visual control, hand strength and precision. A person with Parkinson’s may struggle to reach the feet, hold nail clippers steadily or judge how much nail to remove. This creates risks of cutting the skin, leaving sharp nail edges or cutting too deeply at the corners, which can contribute to ingrown nails.

Applying moisturiser, checking the soles and removing hard skin can also be difficult. Some individuals may not notice a blister, fissure or area of redness until it becomes painful or infected. Reduced activity, fatigue, cognitive changes or depression may further reduce motivation to maintain regular foot inspection. For these reasons, assistance from a family member, carer, podiatrist or other health professional may be necessary. Regular professional care is particularly valuable when self-treatment is unsafe or when there is a history of recurrent lesions.

Skin, circulation and swelling

Reduced mobility can contribute to dependent swelling in the feet, ankles and lower legs. Oedema may make shoes tighter and increase friction against the skin. It may also fluctuate during the day, meaning that footwear comfortable in the morning becomes restrictive later. Elevating the legs when appropriate, maintaining safe levels of movement and obtaining medical assessment for persistent or asymmetrical swelling may help identify contributing factors.

Dry skin and fissures are additional concerns. Feet should generally be washed in warm, not hot, water and dried carefully, especially between the toes. Harsh soaps and prolonged soaking can remove natural oils and worsen dryness. A suitable emollient may be applied to dry skin, but it should not be placed between the toes if moisture retention increases the risk of maceration. Any cut, burn, ulcer, unexplained colour change, discharge, odour or rapidly increasing swelling warrants prompt clinical assessment.

Footwear and fall prevention

Appropriate footwear is central to foot care in Parkinson’s disease. Shoes should fit the current shape of the feet, provide adequate toe space and avoid pressure over prominent areas or dystonic toes. A firm heel counter, a secure fastening system and a stable, non-slip sole may improve security during walking. Velcro or elastic closures can be easier to manage than laces when dexterity is limited. Slippers, loose backless shoes and walking barefoot may increase the risk of slipping or losing balance.

Footwear should be checked regularly because changes in deformity, swelling and gait may alter its suitability. Insoles or orthoses may be considered where there is a specific mechanical problem, although they require individual assessment. Evidence regarding orthoses and specialised footwear in Parkinson’s disease remains variable, and devices should be introduced cautiously so that they do not destabilise the person or interfere with foot placement.

Multidisciplinary management

Foot care is most effective when integrated into broader Parkinson’s management. A podiatrist can assess skin and nail health, pressure distribution, deformity, footwear and the need for professional treatment. A physiotherapist can address strength, balance, gait retraining and cueing strategies for freezing. An occupational therapist may recommend equipment or environmental adaptations that make bathing, dressing and nail care safer. The neurologist or prescribing clinician should review motor fluctuations, medication timing and painful dystonia when these affect foot function.

Education should include daily visual inspection, safe nail-care practices, appropriate footwear and advice about fall hazards within the home. Foot care plans should be reviewed as Parkinson’s disease progresses because symptoms, medication effects and mobility can change over time.

Parkinson’s disease can affect foot care through altered gait, rigidity, dystonia, deformity, swelling, reduced dexterity and increased fall risk. These problems may cause calluses, corns, nail trauma, pain, skin breakdown and difficulty wearing shoes. Regular inspection, safe hygiene, professional nail and skin care, appropriate footwear and coordinated multidisciplinary management can help preserve mobility and independence. In clinical practice, early recognition of foot problems is important because improving foot comfort and stability may reduce avoidable disability and support safer walking for people living with Parkinson’s disease.

Posted on

The Use of Podiatry Felt to Treat Foot Problems

Podiatry felt is a simple but versatile material used by podiatrists to reduce pressure, friction and shear on vulnerable areas of the foot. It is commonly applied as a temporary intervention for corns, calluses, blisters, metatarsalgia, plantar ulcers and painful bony prominences. Although felt does not correct the underlying structural or biomechanical cause of most foot problems, it can provide rapid symptom relief and create more favourable conditions for tissue recovery. Its main therapeutic action is mechanical offloading: pressure is redistributed away from a painful or injured area towards tissues that can tolerate load more effectively.

Properties and mechanism of action

Podiatry felt is generally manufactured from compressed wool, synthetic fibres or felted foam. It is available in different thicknesses, densities and adhesive forms, allowing the clinician to select a material according to the patient’s footwear, skin condition and required degree of pressure reduction. Adhesive felt is often cut into a specific shape and applied directly to the skin or to an insole.

The central principle of felt therapy is to alter the distribution of plantar load. A pad may be placed around, rather than directly over, a lesion. For example, a “donut” or aperture pad surrounding a corn removes direct pressure from the centre of the lesion while transferring some load to the surrounding skin. Similarly, a U-shaped or horseshoe-shaped pad can be used around a metatarsal head, ulcer or prominent bony area. Increasing the contact area between the foot and the shoe or insole can reduce peak pressure at the affected site.

Research supports this mechanical effect. In people with diabetic neuropathic ulceration, newly applied felt reduced peak plantar pressure by approximately 49% compared with no padding, while worn felt reduced pressure by approximately 32%. Felt also increased the contact area beneath the foot. However, the reduction in effectiveness with wear demonstrates that felt must be monitored and replaced regularly.[pubmed.ncbi.nlm.nih]

Treatment of corns and calluses

Corns and calluses develop in response to repeated pressure and friction. A corn is usually a more focal, cone-shaped area of hyperkeratosis, whereas a callus is broader and more diffuse. Both conditions may be associated with digital deformity, prominent metatarsal heads, limited joint motion, inappropriate footwear or altered gait mechanics.

Podiatry felt is often used after the lesion has been assessed and, where appropriate, reduced by scalpel debridement. A felt aperture pad can then be applied to prevent the recently treated area from immediately receiving the same mechanical stress. This approach may reduce pain during walking and allow the skin to recover. Felt can also be used over a pressure-prone area before a definitive device, such as a custom foot orthosis, is manufactured.

Its benefit is usually temporary. If a patient has a recurrent corn caused by a rigid hammertoe, for example, felt may protect the toe but will not correct the deformity. Long-term management may require footwear modification, digital orthoses, accommodative insoles, regular podiatric care or, in selected cases, surgical review. Felt should therefore be regarded as an adjunct rather than a complete treatment.

Blisters, friction and bony prominences

Felt is also useful in the management of friction-related lesions. A carefully shaped pad can reduce contact between the skin and footwear, particularly around the heel counter, malleoli, dorsum of the toes and prominent bunions. By creating a small space around the affected region, the pad can reduce rubbing and protect fragile or recently damaged skin.

In post-operative or post-traumatic care, felt may protect an incision, swelling or bony prominence from pressure generated by a surgical shoe, cast or brace. The edges should be tapered or bevelled so that the material does not produce a secondary ridge of pressure. The application must be checked carefully, because a pad that is too thick or poorly positioned may create a new pressure point elsewhere.

Patients should be advised to monitor for redness, blistering, increased pain or skin irritation. This is particularly important when adhesive materials are used, because some individuals may react to the adhesive layer. Felt may also become compressed, displaced or saturated with perspiration, reducing its effectiveness.

Metatarsalgia and plantar forefoot pain

Metatarsalgia refers to pain beneath the forefoot, commonly around the metatarsal heads. It can arise from excessive plantar loading, reduced cushioning, hallux valgus, a plantar-flexed metatarsal, a stiff ankle, high-heeled footwear or altered gait. A metatarsal pad made from felt is usually positioned proximal to the painful metatarsal heads rather than directly beneath them.

Correct placement is essential. If the pad is placed too far forward, it may increase pressure under the metatarsal heads; if it is too far posteriorly, it may provide little benefit. The podiatrist should assess the patient in standing and walking, consider footwear constraints and evaluate whether the pad improves symptoms without creating new discomfort. Pressure measurement may be useful when available, particularly in complex or high-risk cases.

Studies examining different felt designs suggest that pad geometry influences both the magnitude and duration of offloading. In one preliminary study, a 5-mm U-shaped design produced a more sustained reduction in pressure than a C-shaped design over a three-day period in healthy participants. These findings support the importance of individualised design rather than assuming that one shape is suitable for every patient.[mdpi]

Diabetic and neuropathic feet

One of the most important applications of felt is the offloading of diabetic foot ulcers and other neuropathic lesions. Neuropathy may reduce protective sensation, meaning that a patient can continue walking on an area of excessive pressure without recognising injury. Felt can be applied around an ulcer to reduce local loading while a broader treatment plan is implemented.

Evidence indicates that felted foam can be an effective alternative or adjunct to conventional offloading in selected neuropathic ulcers. One study reported substantial wound-area reduction over ten weeks and concluded that felted foam was comparable to conventional treatment in the observed group. Nevertheless, felt should not be considered sufficient treatment for every diabetic ulcer.[pubmed.ncbi.nlm.nih]

A diabetic foot assessment must include wound classification, infection screening, vascular assessment, neurological testing, footwear review and consideration of the patient’s capacity to comply with offloading. In an infected, ischaemic, deep or rapidly deteriorating ulcer, urgent multidisciplinary care is required. Felt may also conceal wound deterioration if it is left in place too long. Regular review is therefore essential, and high-risk patients should not apply or modify offloading materials without professional supervision.

Limitations and clinical precautions

The main limitation of podiatry felt is that its effect is generally short term. Compression, moisture, migration and repeated loading can reduce its cushioning and offloading properties. It may also increase pressure at the margins or at other parts of the foot if it is incorrectly designed. Adhesive reactions, maceration and skin tears are additional risks.

Felt is unsuitable as a substitute for diagnosis. Persistent pain, recurrent ulceration, unexplained swelling, colour change or loss of function may indicate a condition requiring further investigation. It is also important to distinguish between symptom reduction and resolution of the underlying cause. A patient may feel better while the biomechanical abnormality remains unchanged.

Podiatry felt remains a valuable low-cost intervention because it can rapidly redistribute pressure and reduce friction without requiring complex equipment. It has practical applications in the management of corns, calluses, blisters, metatarsalgia, bony prominences and selected diabetic foot ulcers. Its success depends on accurate assessment, appropriate pad design, correct placement and regular review.

The strongest role for felt is as a temporary or adjunctive treatment. It can protect tissue while a wound heals, provide immediate comfort after debridement and help determine whether mechanical offloading is likely to benefit a patient. However, lasting improvement usually requires treatment of the underlying cause through footwear modification, orthotic therapy, wound care, gait management or multidisciplinary intervention. Used judiciously, podiatry felt illustrates how a simple mechanical device can make a meaningful contribution to modern foot care.

Posted on

Using the PediRoller in Foot Care

The PediRoller is a small, ridged foot-rolling device designed to provide self-massage and stretching to the plantar surface of the foot. It is commonly used for temporary relief of heel and arch discomfort, tired feet, and symptoms associated with plantar heel pain or plantar fasciitis. Used appropriately, it may be a useful adjunct to a broader management programme, although it should not be regarded as a stand-alone treatment for every cause of foot pain. The manufacturer recommends rolling the foot from the heel towards the arch for approximately three to five minutes, twice daily.

Purpose and mechanism

The plantar fascia is a strong band of connective tissue extending from the calcaneal tuberosity towards the forefoot. It contributes to the maintenance of the medial longitudinal arch and assists with efficient force transmission during walking and running. When the plantar tissues are overloaded, patients may develop localised heel pain, arch discomfort, or stiffness during the first steps after rest.

The PediRoller acts through two principal mechanisms. First, the ridged surface produces a form of mechanical massage as the foot is rolled over it. This may reduce the subjective sensation of muscular tension and provide short-term analgesic relief through sensory stimulation. Second, the repeated movement places gentle pressure through the plantar soft tissues and may temporarily improve their tolerance to loading and perceived flexibility. Commercial information describes the device as helping to stretch the plantar fascia and massage tired feet, although claims of improved circulation or tissue healing should be interpreted cautiously.

The device may also be chilled or frozen before use. Cooling can provide a counter-irritant effect and may be soothing when symptoms are irritable after activity. However, cold application should be controlled carefully. A frozen device should not remain stationary against the skin, because prolonged local cooling may cause discomfort or cold injury. Continuous movement and an appropriate protective layer are sensible precautions, particularly in people with reduced sensation.

Preparation for use

Before using the PediRoller, the patient should inspect the plantar skin for cuts, blisters, fissures, ulceration, bruising, or signs of infection. The roller should be clean, intact, and placed on a stable floor. A seated position is generally preferable initially because it allows the patient to regulate pressure and reduces the risk of excessive loading.

The patient can begin with the device at room temperature. If a cold application is desired, the roller may be chilled or frozen according to the product instructions. It should be wiped dry before use to prevent slipping. Patients should avoid applying excessive force in an attempt to obtain faster results. The objective is controlled, tolerable pressure rather than aggressive treatment.

The foot should be placed over the roller with the roller positioned beneath the plantar surface. The patient then moves the foot slowly backwards and forwards, generally from the heel towards the arch and forefoot. Some product guidance recommends a continuous movement from the heel to the ball of the foot, while other instructions focus primarily on the heel-to-arch region. The most appropriate range should be determined by symptoms: painful areas may be approached gently, but the patient should not repeatedly provoke sharp or escalating pain.

Recommended technique

A practical introductory programme is three to five minutes per foot, once or twice daily. Many patients find it convenient to use the PediRoller before their first steps in the morning, after prolonged sitting, or following activity. Morning use may be particularly attractive for individuals who experience pronounced first-step pain, although the roller should not replace a structured stretching and strengthening programme.

The movement should be slow and rhythmic. Pressure can initially be supplied mainly by the weight of the leg, with progression towards partial standing only if the patient can tolerate it without symptom exacerbation. A useful pain-monitoring approach is to maintain discomfort at a mild, acceptable level and to assess the response later that day and the following morning. If symptoms become substantially worse, the duration or pressure should be reduced.

The device should not be used by repeatedly pivoting on one painful point. Instead, the foot should move across the roller so that pressure is distributed through the plantar tissues. The patient may also vary the position slightly to address the medial arch, central plantar region, and forefoot, provided that this does not reproduce neurological symptoms or intense local pain.

Clinical role and limitations

The PediRoller is best considered a symptom-modifying intervention. It may help a patient feel more comfortable and may improve short-term tolerance of walking or exercise. It is unlikely, by itself, to correct contributing factors such as sudden increases in running volume, reduced calf flexibility, weakness of the intrinsic foot muscles, inappropriate footwear, impaired load management, or proximal biomechanical deficits.

For plantar heel pain, rolling may therefore be combined with education, activity modification, supportive footwear, calf and plantar fascia stretching, progressive strengthening, and—in selected cases—taping, orthoses, or other interventions. The appropriate programme depends on the diagnosis. Heel pain can arise from conditions other than plantar fasciitis, including calcaneal stress injury, nerve irritation, fat-pad disorders, inflammatory arthropathy, tendinopathy, or referred pain. Persistent or atypical symptoms should prompt clinical assessment rather than prolonged unsupervised rolling.

The evidence for self-massage and rolling is more supportive of short-term symptom relief than of a definitive cure. Consequently, clinicians should explain that improvement may be gradual and that treatment should be guided by function, irritability, and response to loading. A patient who experiences temporary relief but continues to overload the foot may obtain only limited long-term benefit.

Safety considerations

People with diabetes, peripheral neuropathy, peripheral arterial disease, significant circulatory impairment, or reduced protective sensation should seek professional advice before using the device. The product guidance specifically advises caution for people with diabetes or circulatory disorders and states that it should not be used on broken skin. Patients with these conditions may not accurately perceive excessive pressure, cold injury, or tissue damage.

Use should also be avoided over acute wounds, infection, marked swelling of unknown cause, or severe bruising. A clinician should assess symptoms that are associated with numbness, burning, weakness, night pain, unexplained swelling, systemic illness, or an inability to bear weight. If rolling causes increasing pain, skin irritation, bruising, or symptoms that persist after use, it should be discontinued and reviewed.

After use, the roller can generally be cleaned with warm soapy water and dried thoroughly. Hygiene is particularly important when the device is shared or used in a clinical setting. Patients should receive clear instructions on pressure, duration, cold application, and warning signs rather than being told simply to “roll the foot.”

The PediRoller offers a convenient method of self-massage for people with tired feet, arch discomfort, and some forms of plantar heel pain. Its ridged surface and rolling action may reduce perceived tension and provide short-term comfort, while optional cooling may be soothing during an irritable episode. The recommended technique is slow, controlled rolling beneath the foot for approximately three to five minutes, usually twice daily.

Its greatest value is as an adjunct to comprehensive care. Effective management should address diagnosis, tissue loading, footwear, strength, flexibility, and patient-specific risk factors. Used within those limits—and with appropriate precautions—the PediRoller can be a simple, inexpensive tool that helps patients participate actively in their foot-care programme.

Posted on

Puma Running Shoes: Technology, Performance and Clinical Considerations

Puma has developed from a traditional sportswear brand into a significant competitor in the modern performance-running market. Its contemporary running shoes are centred on the NITROFOAM™ cushioning platform, PWRPLATE propulsion technology and PUMAGRIP outsole compound. Together, these features are intended to provide a combination of lightweight cushioning, energy return, stability and traction. However, as with all running footwear, the suitability of a Puma shoe depends less on brand reputation than on the interaction between the shoe, the runner’s biomechanics, training demands and personal comfort.

Development of Puma Running Shoes

Puma has a long history of footwear innovation. In 1985, the company introduced its Running System collection, which used a Multiplex IV midsole incorporating several materials with different physical and chemical properties. The objective was to absorb shock while controlling motion. Earlier technologies such as TRINOMIC, introduced in 1990, used a hexagonal structure designed to compress and rebound under load. These developments established a foundation for Puma’s current emphasis on cushioning and mechanical efficiency.

The most important recent development has been NITROFOAM™, a nitrogen-infused foam designed to reduce weight while maintaining cushioning and responsiveness. Puma describes the material as lightweight, high-rebound and capable of reducing energy loss during movement. NITROFOAM™ Elite represents the company’s premium formulation and is used in its highest-performance racing models.

Puma’s current range is broad. It includes neutral daily trainers, lightweight tempo shoes, trail footwear and carbon-plated racing models. The Velocity NITRO, for example, is positioned as a versatile daily trainer, while the Deviate NITRO series combines cushioning with a propulsion plate for faster training. The Fast-R NITRO Elite and Deviate NITRO Elite are designed primarily for racing and high-level performance.

Midsole Technology and Ride Characteristics

The central performance feature of Puma’s modern shoes is the NITROFOAM™ midsole. During running, the midsole compresses under load and subsequently rebounds as the runner progresses through midstance and toe-off. In practical terms, the foam is intended to provide a soft enough landing without feeling excessively slow or unstable. The balance between compliance and resilience is particularly important because runners often want cushioning for comfort but also a responsive sensation during faster running.

Different Puma models use different amounts and formulations of foam. Daily trainers generally provide a more balanced ride, making them appropriate for easy runs, regular mileage and recreational training. Racing shoes use lighter, more energetic foam and may include increased stack height. NITROFOAM™ Elite is intended to deliver greater responsiveness in a lighter package than conventional foams. However, a highly energetic midsole is not automatically superior for every runner. Some individuals may prefer a firmer and more stable platform, particularly when walking, running slowly or negotiating uneven surfaces.

The Deviate NITRO series adds PWRPLATE, a carbon-fibre or carbon-composite plate embedded within the midsole. Puma describes PWRPLATE as a component that stabilises the midsole and maximises energy transfer. The plate increases longitudinal stiffness and can help create a rolling sensation through late stance. This may be advantageous during tempo runs and racing, when the runner is applying greater force and moving at higher speeds.

Nevertheless, plated shoes alter the mechanical demands placed on the lower limb. A stiff forefoot may reduce motion at the metatarsophalangeal joints while changing ankle, calf and plantar-flexor loading. Some runners adapt easily, whereas others may experience increased calf, Achilles tendon or forefoot stress when introducing plated footwear too rapidly. For this reason, carbon-plated Puma models should generally be incorporated progressively rather than used immediately for all training sessions.

Outsole, Upper and Fit

Puma uses PUMAGRIP rubber across many of its performance models. The outsole is designed to provide traction on roads and other surfaces, which is particularly important in wet conditions, during cornering and when the runner is fatigued. Reliable grip can improve confidence and reduce unwanted slipping, although outsole durability will vary according to body mass, running technique, surface and weekly mileage.

The uppers commonly use engineered mesh to provide breathability and reduce weight. Targeted PWRTAPE reinforcement is incorporated in selected shoes to improve upper structure and help secure the foot. A well-designed upper should hold the heel and midfoot without excessive pressure, while allowing adequate room for toe splay. Fit is clinically relevant because excessive compression may contribute to discomfort, blistering or nail trauma, whereas excessive internal movement can increase shear forces.

Puma shoes can have a relatively performance-oriented shape, especially in racing models. Therefore, runners with a broad forefoot, hallux limitus, prominent digital deformities or significant oedema should assess width and upper volume carefully. A shoe that appears technically advanced may still be unsuitable if it fails to accommodate the individual foot.

Biomechanical and Clinical Considerations

Running footwear influences lower-limb mechanics, including joint motion, loading rates, ground-reaction forces and muscle activity. However, current evidence does not establish that a particular shoe brand or construction reliably prevents running-related injury. A recent narrative review concluded that although different shoes produce different biomechanical effects, clinically meaningful evidence linking footwear characteristics to injury prevention remains limited. It supports an individualised, comfort-guided approach to shoe selection.

This principle is important when evaluating Puma running shoes. A neutral shoe may suit a runner whose symptoms are not associated with excessive motion or who prefers unrestricted foot movement. A more structured model may feel more secure for a runner seeking additional guidance, although it should not be regarded as a substitute for a full clinical assessment. Likewise, a high-stack or carbon-plated shoe may improve comfort and performance for one athlete but feel unstable or overly aggressive for another.

Puma shoes may be appropriate for runners with a variety of needs, but selection should consider training pace, surface, running volume, foot shape, previous injury and tolerance to changes in footwear. Clinicians should also examine the entire management plan, including load progression, strength, recovery, technique and relevant medical factors. Shoe choice is one component of injury management rather than an isolated treatment.

Advantages and Limitations

The major advantages of Puma’s running range are its modern foam technology, competitive performance features and broad model selection. NITROFOAM™ provides a lightweight and responsive platform, while PWRPLATE offers a propulsion-focused option for runners seeking faster training or racing performance. PUMAGRIP can also provide dependable traction across a range of conditions. Puma’s elite models demonstrate that the company is capable of competing technologically with established premium running brands.

There are also limitations. Some plated models may be costly and may not provide meaningful benefits for runners who primarily run at easy speeds. Highly responsive shoes can feel less stable to individuals who prioritise controlled, predictable motion. Durability may vary between models, and the marketing language surrounding energy return or efficiency should not be interpreted as proof of injury prevention. Finally, a shoe’s success depends heavily on fit and individual preference, both of which cannot be determined from specifications alone.

Conclusion

Puma running shoes represent an important development in contemporary footwear, particularly through the use of NITROFOAM™, NITROFOAM™ Elite, PWRPLATE and PUMAGRIP. The range offers practical options for daily training as well as advanced shoes for tempo running and competition. Their design may enhance comfort, responsiveness and propulsion, but these benefits are highly individual.

For runners and clinicians, the most appropriate Puma shoe is the one that fits well, feels comfortable, matches the intended training purpose and can be introduced without excessive changes in loading. Current evidence does not justify claiming that Puma—or any other brand—prevents injury. Instead, Puma running shoes should be viewed as tools that can support performance and comfort when selected within an individualised, evidence-informed approach.

Posted on

Psoriasis affecting the feet

Psoriasis affecting the feet represents a clinically significant subset of psoriatic disease that poses unique diagnostic and therapeutic challenges for podiatric practitioners. This chronic inflammatory dermatosis can manifest as palmoplantar psoriasis, characterised by hyperkeratotic plaques on the plantar surface, or as part of the broader spectrum of psoriatic arthritis with enthesitis and dactylitis affecting foot structures. Understanding the pathophysiology, clinical presentation, and evidence-based management strategies is essential for optimising patient outcomes and minimising functional disability.

Pathophysiology and Epidemiology

Palmoplantar psoriasis affects approximately 12–16% of individuals living with psoriasis, representing a substantial patient population in clinical practice. The condition arises from dysregulated immune responses involving T-cell activation and pro-inflammatory cytokines, particularly interleukin-17 and interleukin-23, which drive keratinocyte hyperproliferation and abnormal differentiation. When localised to the feet, the thick stratum corneum of the plantar skin contributes to the characteristic hyperkeratotic morphology and resistance to conventional therapies.

Palmoplantar pustulosis, historically considered a variant of palmoplantar psoriasis, presents with sterile intraepidermal pustules and may represent a distinct entity, though the classification remains debated in dermatological literature. Both conditions are chronic, relapsing disorders associated with significant impairment in quality of life due to pain, fissuring, and functional limitations during ambulation.

Clinical Presentation

Cutaneous Manifestations

Plantar psoriasis classically presents as bilateral, symmetrical, well-demarcated erythematous plaques with sharp borders extending across the soles. The overlying scale is typically thick and may exhibit a silvery appearance, though on darker skin tones the plaques may appear greyish or hyperpigmented. Deep fissuring is a hallmark feature, often causing severe pain and bleeding that significantly impairs mobility and weight-bearing activities.

In palmoplantar pustulosis, the initial presentation involves crops of small, sterile pustules that evolve from yellow to brown before becoming scaly and desquamating. These pustules may coalesce into larger lesions up to 5 cm in diameter, particularly on weight-bearing areas such as the heels and medial arch. Patients frequently report symptoms of itching, burning, and pain, with fissuring contributing to secondary infection risk.

Nail Involvement

Nail psoriasis commonly coexists with plantar disease, affecting the toenails with characteristic findings including pitting, onycholysis, subungual hyperkeratosis, and oil-drop discoloration. Nail involvement serves as a clinical marker for increased risk of psoriatic arthritis and should prompt careful musculoskeletal assessment.

Psoriatic Arthritis of the Foot

Psoriatic arthritis (PsA) affects the foot in a substantial proportion of patients, with enthesitis representing the hallmark finding. The most common sites include the Achilles tendon insertion at the calcaneus and the plantar fascia origin at the medial calcaneal tubercle. Synovial inflammation leads to joint swelling, tenderness, stiffness (particularly morning stiffness), and reduced range of motion

Dactylitis, or “sausage toe,” results from diffuse inflammation of an entire digit and is highly specific for psoriatic disease. Chronic PsA can produce structural deformities including clawing or shortening of toes, hyperextension of the hallux, and collapse of the metatarsal arch with associated hindfoot valgus. These biomechanical alterations increase plantar pressures and predispose to secondary complications such as metatarsalgia and ulceration, particularly in patients with comorbid diabetes or peripheral neuropathy.

Differential Diagnosis

The differential diagnosis of plantar dermatoses is broad and includes tinea pedis, contact dermatitis, dyshidrotic eczema, and juvenile plantar dermatosis. Tinea pedis typically presents with interdigital scaling and may be distinguished by potassium hydroxide preparation demonstrating fungal hyphae. Contact dermatitis often shows a more acute presentation with vesiculation and a history of allergen exposure.

Given the morphological overlap, skin biopsy may be necessary to confirm the diagnosis, particularly in atypical presentations or when initial therapy fails. Histopathological examination reveals acanthosis, parakeratosis, neutrophilic infiltration of the stratum corneum (Munro microabscesses), and dilated capillaries in the dermal papillae.

Diagnostic Approach

Diagnosis is primarily clinical, based on the characteristic appearance, distribution, and patient history. Key diagnostic features include symmetrical involvement, well-demarcated plaques, nail changes, and personal or family history of psoriasis. When fungal infection is suspected, skin scrapings for microscopy and culture should be obtained to exclude tinea.

For patients with suspected psoriatic arthritis, referral to rheumatology is warranted for comprehensive assessment including inflammatory markers, imaging (radiography or musculoskeletal ultrasound), and consideration of disease-modifying therapy. Podiatrists play a crucial role in early recognition of enthesitis and dactylitis, facilitating timely multidisciplinary management.

Management Strategies

Topical Therapies

First-line treatment for localised plantar psoriasis includes high-potency topical corticosteroids, often under occlusion to enhance penetration through the thick plantar stratum corneum. Intermittent rather than continuous use is recommended to minimise tachyphylaxis and adverse effects. Adjunctive therapies include emollients to reduce scaling and fissuring, keratolytic agents such as urea (20–40%) or salicylic acid to soften hyperkeratosis, and coal tar preparations for anti-inflammatory and antiproliferative effects.

Topical calcipotriene (vitamin D analogue) may be used in combination with corticosteroids for enhanced efficacy, though penetration through thick plantar plaques remains challenging. For palmoplantar pustulosis, ultrapotent topical steroids are typically employed intermittently, as continuous treatment may aggravate the condition.

Phototherapy

Narrowband ultraviolet B (NB-UVB) phototherapy and psoralen plus UVA (PUVA) are effective options for widespread or recalcitrant disease. However, the thickness of plantar skin may limit light penetration, requiring higher doses or longer treatment courses.

Systemic Therapies

For moderate-to-severe disease or significant functional impairment, systemic agents are indicated. Traditional options include methotrexate, cyclosporine, and acitretin, which modulate immune responses and keratinocyte proliferation. These require careful monitoring for hepatotoxicity, nephrotoxicity, and teratogenicity.

Biologic therapies targeting tumour necrosis factor-alpha (TNF-α), interleukin-17, and interleukin-23 have demonstrated promising results for palmoplantar psoriasis, with significant improvements in plaque clearance and quality of life. Agents such as etanercept, infliximab, secukinumab, and ixekizumab are increasingly employed for refractory cases.

Podiatric and Mechanical Management

Podiatric intervention is essential for addressing biomechanical complications and optimising function. Custom orthotic devices can redistribute plantar pressures, reduce stress on inflamed entheses, and accommodate structural deformities. Supportive footwear with cushioned soles and adequate depth accommodates swollen digits and reduces shear forces.

For enthesitis-related pain, conservative measures including rest, ice, activity modification, and non-steroidal anti-inflammatory drugs provide symptomatic relief. Physical therapy focusing on stretching and strengthening exercises maintains joint mobility and muscle function. In cases of severe deformity or refractory pain, surgical interventions such as arthrodesis or joint reconstruction may be considered in coordination with orthopaedic colleagues

Multidisciplinary Care

Optimal management requires collaboration between podiatrists, dermatologists, and rheumatologists. While systemic disease is managed with disease-modifying antirheumatic drugs (DMARDs) and biologics by rheumatology, podiatrists focus on mechanical protection, footwear optimisation, wound care for fissures, and monitoring for secondary complications. Regular follow-up enables early detection of disease progression and adjustment of therapeutic strategies.

Prognosis and Quality of Life

Palmoplantar psoriasis is a chronic, relapsing condition with no definitive cure, though modern biologic therapies have improved long-term outcomes. The functional disability associated with painful fissures, altered gait, and footwear restrictions substantially impacts quality of life, employment, and psychological well-being. Early diagnosis, aggressive treatment, and comprehensive podiatric care are essential to minimise morbidity and maintain mobility.

Psoriasis affecting the feet encompasses a spectrum of cutaneous and articular manifestations requiring a nuanced, multidisciplinary approach. Recognition of characteristic clinical features, appropriate diagnostic evaluation, and implementation of evidence-based therapies—from topical agents to biologics and mechanical interventions—enable podiatrists to significantly improve patient outcomes. Ongoing research into targeted immunomodulatory therapies continues to expand the therapeutic armamentarium, offering hope for enhanced disease control and quality of life for affected individuals.

Posted on

Posterior Tibial Tendon Dysfunction

Posterior tibial tendon dysfunction (PTTD) is a progressive disorder involving failure of the tibialis posterior tendon and, frequently, the supporting ligaments and joints of the medial foot and ankle. It is a major cause of adult-acquired flatfoot and may produce pain, weakness, loss of the medial longitudinal arch, hindfoot valgus, forefoot abduction and, in advanced cases, ankle valgus. Because the deformity reflects a three-dimensional failure of the foot rather than an isolated tendon problem, the term progressive collapsing foot deformity (PCFD) is now increasingly preferred.

Anatomy and pathophysiology

The tibialis posterior muscle originates mainly from the posterior tibia, fibula and interosseous membrane. Its tendon passes behind the medial malleolus, changes direction around the ankle, and inserts primarily onto the navicular, with expansions to the cuneiforms, cuboid, metatarsal bases and sustentaculum tali. It contributes to inversion and plantarflexion and is an important dynamic stabiliser of the medial longitudinal arch.

During stance, the tendon assists in controlling pronation and helps convert the foot into a rigid lever for propulsion. Tendon degeneration, elongation or rupture reduces this support. The spring ligament, deltoid ligament, plantar fascia and other passive stabilisers may subsequently become overloaded. The result is progressive pronation, hindfoot eversion, talar plantarflexion and adduction, forefoot abduction, and collapse of the medial arch.

The condition is most common in middle-aged and older adults, particularly women, although it also occurs in athletes and younger patients. Reported risk factors include obesity, hypertension, diabetes, previous trauma, inflammatory disease and corticosteroid exposure. Mechanical overload is often compounded by reduced calf strength, impaired balance, poor proximal limb control and limited ankle dorsiflexion.

Clinical presentation

Symptoms commonly begin with pain and swelling along the posteromedial ankle, especially behind or below the medial malleolus. Patients may describe fatigue, aching during prolonged standing or walking, and difficulty walking on uneven ground. As the deformity progresses, pain may shift to the lateral hindfoot because of sinus tarsi or subfibular impingement.

Clinical assessment should compare both limbs and include standing alignment, gait, footwear, ankle range of motion, hindfoot position and the ability to perform a single-leg heel rise. Important findings include:

  • Tenderness or swelling along the tibialis posterior tendon.
  • Reduced inversion strength and pain with resisted inversion.
  • Loss or flattening of the medial longitudinal arch.
  • Hindfoot valgus and forefoot abduction.
  • The “too-many-toes” sign, reflecting lateral displacement of the forefoot when viewed from behind.
  • Difficulty or inability to perform a repeated single-leg heel raise.
  • Reduced inversion of the calcaneus during heel elevation.
  • Limited ankle dorsiflexion or gastrocnemius tightness.

The single-leg heel-rise test is particularly useful. In early disease, the patient may complete the movement but experience pain or weakness. In more advanced disease, the patient cannot elevate the heel or cannot invert the hindfoot during the maneuver. Nevertheless, clinical testing should not be interpreted in isolation, since pain, balance impairment and coexisting ankle pathology may influence performance.

Diagnosis and classification

Diagnosis is primarily clinical, supported by weight-bearing imaging when deformity is suspected. Plain radiographs should generally include weight-bearing anteroposterior, lateral and hindfoot views. They can demonstrate loss of arch height, increased talonavicular uncoverage, forefoot abduction, talar–first metatarsal malalignment and hindfoot valgus. Stress or specialist imaging may be useful when ankle instability or rigid deformity is present.

Ultrasound can assess tendon thickening, tenosynovitis, partial tears and dynamic function. Magnetic resonance imaging is valuable when the diagnosis is uncertain or when tendon, spring ligament, deltoid ligament, cartilage and occult bone pathology must be evaluated. However, imaging abnormalities should be correlated with symptoms and physical findings.

Traditional staging systems describe a continuum from painful tendon dysfunction without major deformity to flexible flatfoot and finally rigid deformity with ankle involvement. The newer PCFD classification recognises that several deformities may coexist and that flexibility is clinically important. Class A represents hindfoot valgus; class B, midfoot or forefoot abduction; class C, forefoot varus or medial-column instability; class D, peritalar subluxation or dislocation; and class E, ankle instability or valgus tilt. Each deformity may be flexible or rigid.

This framework is clinically useful because treatment should address the dominant deformity and its flexibility, rather than assuming that tendon failure follows one predictable sequence.

Conservative management

Early treatment is usually non-operative. The goals are to reduce tendon load, control deformity, restore strength and improve function. Relative rest and temporary modification of aggravating activities may be required, while complete immobilisation should generally be reserved for more painful presentations or acute exacerbations.

A short period in a walking boot or supportive brace can reduce symptoms and allow tendon irritability to settle. This should be followed by a structured rehabilitation programme rather than prolonged immobilisation. Exercise commonly includes progressive tibialis posterior and calf strengthening, eccentric or heavy-slow resistance loading, intrinsic foot exercises, balance training and proximal hip strengthening. Calf stretching may be appropriate when restricted dorsiflexion contributes to compensatory pronation.

Evidence supports combining exercise with arch-supporting orthoses, although the overall evidence base remains limited. A systematic review found that strengthening exercises may improve pain and disability, with eccentric exercise potentially offering greater benefit than concentric exercise, orthoses or stretching alone. Another review reported that personalised orthoses providing longitudinal arch support were more effective for pain reduction than flat insoles or standard treatment in early-stage disease. bmjopensem.bmj

Orthotic prescription should be individualised. Options range from foot orthoses with medial arch support and rearfoot control to more controlling ankle-foot orthoses for substantial deformity or tendon weakness. Footwear with a stable heel counter, adequate midfoot support and an appropriate rocker may further reduce symptoms. Clinicians should monitor tolerance carefully, since excessive medial pressure or poorly matched control can provoke discomfort elsewhere.

Weight management, management of diabetes and hypertension, smoking cessation, and treatment of inflammatory disease may improve the broader mechanical and biological environment. Analgesics or anti-inflammatory medication may assist short-term symptom control, but persistent pain should not be managed solely with medication.

Surgical management and prognosis

Surgery is considered when appropriately delivered conservative care fails, symptoms remain functionally limiting, or deformity progresses. The procedure depends on the patient’s age, activity requirements, tendon quality, joint degeneration, deformity pattern and flexibility.

Flexible deformity may be treated with combinations of tendon reconstruction, commonly involving flexor digitorum longus transfer, spring-ligament reconstruction, gastrocnemius recession or Achilles-tendon lengthening, and corrective osteotomy such as medialising calcaneal osteotomy. Medial-column procedures may be added when instability or forefoot varus is significant. Rigid deformity or established arthritis is more likely to require joint fusion procedures. If the deltoid ligament and ankle are involved, additional reconstruction or realignment may be necessary.

Outcomes are generally more favourable when the condition is recognised before fixed deformity and degenerative joint changes develop. Rehabilitation after surgery is prolonged and often involves an initial period of protection, followed by progressive weight bearing, range-of-motion work, strengthening and gait retraining.

Posterior tibial tendon dysfunction is best understood as a continuum of tendon insufficiency and progressive foot collapse. Assessment should include tendon symptoms, foot and ankle alignment, deformity flexibility, strength, gait and associated ligament or joint involvement. Early management combines load modification, appropriately prescribed orthoses, supportive footwear and progressive rehabilitation. When deformity becomes fixed or symptoms persist despite conservative care, reconstructive or fusion surgery may be indicated. The modern PCFD classification reinforces the importance of treating the complete mechanical problem rather than focusing exclusively on the tibialis posterior tendon.

Posted on

The Pose running technique

The Pose running technique, formally known as the Pose Method of Running, is a biomechanically driven approach that redefines running as a skill of falling and pulling rather than pushing. Developed by Dr. Nicholas Romanov in the late 1970s, it emphasizes midfoot landing, high cadence, and gravity-assisted forward motion to improve efficiency and reduce injury risk.

Origins and Philosophy

The Pose Method was created by Dr. Nicholas Romanov, a Soviet sports scientist, who sought to identify the universal mechanics underlying elite running performance. Romanov observed that regardless of speed or distance, all runners cycle through three invariable elements: the Pose (a specific body position), the Fall (using gravity to move forward), and the Pull (lifting the foot from the ground using the hamstrings). The philosophy rejects the traditional “push-off” model, arguing that muscular effort should be minimised in favour of leveraging gravitational force and elastic recoil. This approach is intended to make running feel easier, reduce joint impact—particularly on the knees by up to 50%—and enable longer, faster running with less energy expenditure.

The Three Core Elements

1. The Pose

The “Pose” is a specific, repeatable body position that serves as the foundation of the technique. In this stance, the runner stands on the ball of the foot (not the heel or toes) with the support leg slightly bent. The hips, shoulders, and ankle of the support leg are vertically aligned, creating an “S-stance” or slight forward lean from the ankles—not the hips. The free leg is lifted under the body in a figure-four shape, with the heel drawn toward the glutes using the hamstrings. This position is held momentarily before transitioning into the next phase.

2. The Fall

Forward motion in Pose running is generated not by pushing against the ground but by allowing the body to fall forward under the influence of gravity. The runner leans slightly from the ankles, maintaining a stable midline and upright posture, which initiates movement. The degree of lean correlates with speed: the farther you fall, the faster you go. This use of gravity as the primary propulsive force distinguishes Pose from conventional running styles that rely on muscular push-off.

3. The Pull

Once the body begins to fall, the support foot is pulled directly upward and under the hips using the hamstring muscles. This “pull” is a quick, compact motion that minimises ground contact time and keeps the stride short and frequent. The emphasis is on lifting the foot, not landing it; the foot lands naturally under the body as a result of the pull and fall, not through active placement. This action reduces braking forces and impact, particularly at the knee, and promotes a cadence of at least 90 strides per minute (180 steps per minute).

Biomechanical Principles and Benefits

The Pose Method is grounded in several key biomechanical principles:

  • Midfoot landing under the body: By landing on the ball of the foot directly beneath the hips, the runner avoids the heavy impact associated with heel striking. This reduces stress on the knees and ankles and utilises the natural elasticity of the Achilles tendon and calf muscles
  • Short stride and high cadence: Pose running encourages a shorter stride length and higher step frequency, which minimises overstriding and its associated injury risks. A cadence of 180 steps per minute is often recommended to optimise ground reaction forces and muscle elasticity.
  • Gravity as propulsion: By leaning forward and falling, the runner harnesses gravitational force rather than relying solely on muscular effort. This can lead to improved mechanical efficiency, with some claims of up to a 50% reduction in energy cost and a 20% decrease in oxygen consumption.
  • Hamstring-driven pull: The active use of the hamstrings to lift the foot reduces the workload on the quadriceps and minimises eccentric loading on the knee joint. This is particularly beneficial for runners prone to patellofemoral pain or other knee injuries.

Reported benefits include reduced injury risk (especially knee-related), improved running economy, faster times, and greater enjoyment of running. Some practitioners also claim that consistent use of the Pose Method can help runners eliminate the need for orthotics by improving natural foot function and alignment.

Learning the Pose Method

Transitioning to Pose running requires deliberate practice and a focus on drills before attempting full runs. Key drills include:

  • Pose stance practice: Holding the correct body position while standing or running in place to develop muscle memory.
  • Falling drills: Leaning forward from the ankles and allowing the body to fall, then catching oneself with the next step.
  • Pulling drills: Practising the hamstring-driven pull by lifting the foot directly under the hips, often barefoot on a soft surface to enhance proprioception.

These drills are typically performed daily for at least a week before incorporating the technique into actual running. The method emphasises awareness of body position, timing, and the sensation of falling and pulling rather than pushing.

Criticisms and Considerations

While the Pose Method has gained a dedicated following, it is not without controversy. Some critics argue that the emphasis on forefoot landing may increase load on the Achilles tendon and calf muscles, potentially leading to injuries such as Achilles tendinopathy or plantar fasciitis in susceptible individuals. Additionally, the claim of a 50% reduction in knee impact, while frequently cited, is based on limited peer-reviewed research and may not generalise to all runners.

From a clinical perspective, the Pose Method may be particularly suitable for runners with a history of knee pain or those seeking to improve running economy. However, individuals with pre-existing calf or Achilles issues should approach the transition cautiously, as the increased demand on the posterior chain could exacerbate symptoms. As with any running technique, individual biomechanics, injury history, and goals should guide adoption.

The Pose running technique offers a structured, biomechanically informed approach to running that prioritises efficiency, injury prevention, and the intelligent use of gravity. By focusing on the Pose, Fall, and Pull, runners can develop a smoother, more economical stride that reduces joint stress and enhances performance. While not a universal solution, it provides a valuable framework for runners and clinicians seeking to optimise movement patterns and address common running-related injuries.

Posted on

The Ponseti Method for Clubfoot

Congenital clubfoot, or congenital talipes equinovarus (CTEV), is one of the most common congenital musculoskeletal deformities affecting newborns. It is characterised by four related components: forefoot cavus, forefoot adduction, hindfoot varus and ankle equinus. The deformity may occur in one or both feet and can be associated with neurological, syndromic or chromosomal conditions, although idiopathic clubfoot is the most common form. Without effective treatment, the child may develop a rigid, painful and poorly functioning foot that makes plantigrade walking difficult. The Ponseti method has become the standard conservative treatment because it corrects the deformity through gentle manipulation, serial casting, limited surgical intervention and prolonged bracing.

The method was developed by Ignacio Ponseti in the mid-twentieth century. Earlier treatment strategies often relied on extensive surgical releases, which could produce a plantigrade foot but were associated with stiffness, weakness, scarring and degenerative changes later in life. Ponseti’s approach was based on an understanding of the three-dimensional anatomy of clubfoot and the plasticity of infant tissues. Rather than forcing the foot into correction, the method gradually realigns the tarsal bones while stretching contracted ligaments, joint capsules and tendons. Systematic reviews have consistently reported high initial correction rates, particularly in idiopathic clubfoot treated during infancy. A review of children younger than two years found that all included studies reported the Ponseti method to be effective, although relapse remained common when bracing was not followed.

Principles of correction

The essential principle is that the components of clubfoot must be corrected in a specific sequence. The cavus is corrected first, followed by adduction and varus, with equinus addressed last. This sequence is sometimes summarised as “CAVE”: cavus, adductus, varus and equinus. The clinician first palpates the head of the talus, which serves as the point of counter-pressure and the fulcrum for correction. The forefoot is gently supinated to elevate the first metatarsal and reduce the cavus deformity. The foot is then abducted beneath the talus while pressure is maintained over the lateral talar head.

A critical feature of the technique is that the calcaneus must be allowed to move with the rest of the foot. Pressure should not be applied directly to the calcaneus because this can prevent its normal derotation beneath the talus. Similarly, the foot should not be pronated during manipulation. Incorrect force application may create a “rocker-bottom” or midfoot-break deformity, in which the midfoot becomes dorsiflexed while the hindfoot remains in equinus and varus. These technical details explain why appropriate training and clinical experience are important for achieving reliable results.

Serial manipulation and casting

Treatment should ideally begin soon after birth, often during the first few weeks of life, when the infant’s connective tissues are particularly adaptable. At each appointment, the foot is gently manipulated for approximately one minute before a cast is applied. The cast generally extends from the toes to the upper thigh, with the knee flexed. Above-knee casting is necessary because a short-leg cast cannot adequately maintain the required abduction and is more likely to slip.

The first cast maintains correction of the cavus by positioning the forefoot in supination. In subsequent casts, progressive abduction is applied while the talar head is stabilised. Casts are usually changed every five to seven days, allowing the soft tissues to stretch gradually and the bones to remodel in the improved position. Most infants require approximately four to seven casts, although the number varies according to the initial severity, rigidity and complexity of the deformity. The foot is not forced into dorsiflexion prematurely, because equinus should be corrected only after the subtalar component of the deformity has been adequately addressed.

Clinical scoring systems, particularly the Pirani score, may be used to document severity and monitor correction. Examination remains central, however, because the position of the talar head, heel and midfoot must be assessed by palpation. Radiographs are not routinely necessary in typical idiopathic cases, although imaging may be useful in complex or atypical deformities.

Achilles tenotomy

After the cavus, adduction and varus have been corrected, residual equinus is commonly caused by a shortened Achilles tendon and posterior capsular structures. In most cases, a percutaneous Achilles tenotomy is required to achieve adequate ankle dorsiflexion. Published reports indicate that approximately 60% to more than 90% of patients may require this procedure, depending on the severity of the deformity and the criteria used to define correction.

The tenotomy is a small procedure, often performed under local anaesthesia or appropriate sedation, and is followed immediately by the final cast. It should not be performed before the hindfoot and subtalar alignment have been corrected. Premature release of the Achilles tendon may leave persistent hindfoot varus and can contribute to a false appearance of correction through midfoot dorsiflexion. The final cast is generally maintained for approximately three weeks, allowing the tendon to heal at its corrected length.

Although the procedure is usually safe, complications can include bleeding, infection, incomplete tenotomy and, rarely, injury to nearby neurovascular structures. Careful anatomical localisation and appropriate procedural expertise are therefore essential.

Bracing and relapse prevention

The bracing phase is as important as the casting phase. Once the foot has been corrected, it has a strong tendency to relapse, particularly during the first several years of life. A foot-abduction orthosis, commonly consisting of shoes attached to a bar, maintains the feet in external rotation and prevents the corrected position from being lost. The usual protocol involves wearing the brace for approximately 23 hours per day for the first three months, followed by use during sleep and naps until the child is around four or five years old.

The brace does not correct an unreduced clubfoot; rather, it preserves a successful correction. Consequently, it must be applied only after the foot has been adequately corrected and the ankle has sufficient dorsiflexion. Correct shoe fitting is essential. The heel must remain seated in the shoe, the straps must be secure without impairing circulation, and the skin should be checked regularly for pressure areas or blisters.

Relapse is the principal limitation of the Ponseti method. It may present as recurrent forefoot adduction, dynamic supination, hindfoot varus or equinus. Non-adherence to bracing is one of the strongest recognised risk factors. Families may find the orthosis difficult to use, particularly when the infant initially resists having both legs connected by a bar. Clear education, practical demonstrations, early review and a supportive clinician–family relationship can substantially improve adherence.

Outcomes and limitations

The major advantage of the Ponseti method is that it usually produces a flexible, plantigrade and functional foot while avoiding extensive corrective surgery. Long-term follow-up has shown that treated individuals can achieve activity levels and pain outcomes comparable with those of people without clubfoot. The method also reduces healthcare burden by replacing prolonged hospitalisation and major surgery with outpatient casting and, when necessary, a brief tenotomy.

Nevertheless, the method is not equally predictable in every patient. Complex, neglected, recurrent, neurological and syndromic clubfeet may require more casts, repeated tenotomies or additional procedures. Relapses may often be m