Month: February 2026

Double Plantar Flexor Stretch, A Biomechanical Perspective

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Double Plantar Flexor Stretch

The double plantar flexor stretch is a weight bearing, closed chain exercise that encourages ankle dorsiflexion while engaging both lower limbs at the same time. It is an effective way to improve flexibility through the back of the lower leg while also integrating the foot, ankle, knee and hip into one coordinated movement.

As the heels move down towards the ground and the ankles travel into dorsiflexion, the calf muscles are placed under controlled stretch. The gastrocnemius and soleus are the primary muscles involved, with the gastrocnemius experiencing a stronger stretch when the knees are more extended due to its role across both the knee and ankle joints. The soleus provides deeper stability and control at the ankle, supporting improved movement efficiency. Together, this helps restore a more optimal length and function within the calf complex, which is essential for effective walking and running mechanics.

This movement also targets the deeper muscles of the lower leg, including tibialis posterior, flexor digitorum longus and flexor hallucis longus. These structures play an important role in maintaining arch support and controlling foot stability. By improving flexibility and reducing excessive tightness, the stretch helps the foot move more efficiently between pronation and supination during stance.

The position of the foot during this stretch is key. With both feet in contact with the ground, load is distributed evenly across the forefoot and heel. This encourages balanced joint movement through the ankle and midfoot, while also supporting more even loading of the Achilles tendon. Compared to single leg stretching, this can help reduce asymmetries and improve overall movement patterns.

Further up the chain, the hamstrings work to stabilise the knee, ensuring that the stretch is directed through the ankle rather than being compensated for by bending at the knee. This allows for a more targeted and effective stretch of the calf muscles.

From a connective tissue perspective, this stretch loads the posterior chain, linking the plantar fascia, Achilles tendon, calf muscles, hamstrings and into the pelvis. Improving the flexibility and function of this chain supports better energy transfer, which is essential for activities such as walking, running and jumping.

Neurologically, working both legs together increases sensory feedback from the feet and ankles. This can improve balance, coordination and overall movement control, particularly following periods of inactivity, prolonged sitting or repetitive loading patterns.

From a functional standpoint, improving flexibility in the calf muscles can increase stride length, enhance shock absorption and improve propulsion during movement. It can also reduce compensatory stress through the knees and lower back, supporting more efficient and comfortable movement patterns.

In summary, the double plantar flexor stretch is an effective, whole body movement that improves ankle mobility, supports Achilles tendon function and promotes more balanced, efficient lower limb mechanics.

If you are suffering with pain in the plantar or foot you can speak to our sports therapy or physiotherapy team by calling – 0330 043 2501. Alternatively you may be interested in a massage which you can book through our booking page located here.

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Wrist Flexor Stretch, A Biomechanical Perspective

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Wrist Flexor Stretch Biomechanics

The wrist flexor stretch performed in a quadruped, weight bearing position is an effective upper limb mobility exercise that promotes flexibility through the front of the forearm while supporting joint control and stability. This position places the hand in contact with the ground, allowing the wrist to move into extension under controlled load, which helps counteract the flexion dominant positions commonly seen during typing, gripping, and manual work.

As the palms are placed firmly on the floor and the wrists extend, key forearm muscles including flexor carpi radialis, flexor carpi ulnaris, palmaris longus, flexor digitorum superficialis and profundus, and flexor pollicis longus are gradually lengthened. These muscles are responsible for bending the wrist and fingers, and when overused or held in shortened positions, they can become tight and overactive. Stretching them in this way helps restore a more optimal balance between muscle length and function, reducing unnecessary tension through the forearm.

With the fingers extended and body weight passing through the hands, this stretch creates a multi joint effect across the wrist and fingers. This encourages improved movement of the tendons as they glide through the carpal tunnel and along the finger pathways, helping to reduce friction and improve overall hand efficiency.

From a joint perspective, the closed chain nature of this exercise distributes load evenly across the wrist structures. This promotes better alignment of the carpal bones and reduces the risk of placing excessive strain on individual tendons or tissues. As a result, it is often a safer and more controlled option compared to aggressive passive stretching.

Further up the arm, muscles such as the brachialis, biceps brachii, brachioradialis, and pronator teres work to stabilise the elbow and forearm. This stability ensures that the stretch remains focused on the wrist and forearm, rather than being compensated for by movement at the elbow or shoulder.

Neurologically, holding the wrist in an extended, weight bearing position increases sensory feedback from the hand and forearm. This helps improve coordination between the muscles that flex and extend the wrist, enhancing overall joint control during tasks such as pushing, lifting, crawling, and weight transfer.

The stretch also influences the connective tissue system, loading the anterior fascial line of the upper limb. This can improve the ability of tissues to move freely against each other, supporting smoother hand opening and reducing fatigue in the forearm during repetitive activity.

From a functional standpoint, improving the flexibility of the wrist flexors can enhance dexterity, reduce the likelihood of overuse injuries, and support more efficient movement patterns during both everyday tasks and sporting activity.

In summary, the wrist flexor stretch is a highly effective, load tolerant exercise that helps restore forearm flexibility, improve wrist alignment, and support strong, stable, and pain free movement of the hand and wrist.

 

If you are suffering with pain in the wrists or flexors you can speak to our sports therapy or physiotherapy team by calling – 0330 043 2501. Alternatively you may be interested in a massage which you can book through our booking page located here.

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