Plantar foot Physiology


The Windlass Mechanism is a cam-like, bio-mechanical feature supported by the sesamoid bones in the metatarsal phalangeal joint of the big toe. See diagram, below.

The Windlass Mechanism activated, it pushes down the big-toe's metatarsal and shortens the plantar fascia, preloading its tension and locking the forefoot and mid-foot bones into an angle elevating arch height.

The plantar fascia ligament network supports bony structure and Windless Mechanism function. In effect, when on the forefoot the foot is a rigid lever; when on the heel and mid-foot, the mechanism is not activated and the foot has spring and shock absorption capacity and this is when the plantar fascia supports most of the load. FootMedic FasciaBand Effectiveness >






The Windlass Mechanism simply activates when the big toe bends up; it needs no muscular force. This also winds up the fascia to remove slack created as the distance between heel and forefoot shortens as arch height increases...


It should be emphasized that the Windlass Mechanism does NOT actually "stretch" the fascia - it just takes up slack that develops from changes in the foot's length, via changes in arch height.



For the Windlass Mechanism to function we must gait neutrally: Over-Pronation or Supination will interfere and should be corrected. Problems include plantar fasciitis and bursitis. Learning to stand and walk correctly is the solution.


The FootMedic FasciaBand can help with gait correction. Over-pronation is usually the culprit, so awareness and developing the Tibialis Posterior Muscle and ankle support strength is vital. Note, orthotics or "motion-control" shoes prevent this from occurring and are only a band-aid.




As we gait onto the forefoot our Windlass Mechanism pulls down the first metatarsal, increasing arch height. This effectively shortens the distance between heel and forefoot, optimizes bone/joint geometry to generate leverage countering arch collapse, and removes fascia slack.

This illustration demonstrates how loading on the medial plantar fascia ligament is absorbed and when overloaded rupture results.

The plantar fascia ligament is super tough and doesn't stretch. If stretched, the extent of injury depends upon degree it was stretched; full rupture, like the tape above, can result. Usually, plantar fascia injury is NOT felt when it occurs. Later, once inflammation is present, pain is felt.

*FootMedic is not intended to diagnose, treat, prevent or cure any disease.

NOTICE: "Definitive Recovery" assumes plantar fasciitis and/or bursitis is actually present prior to use of FootMedic; that nothing pathological is involved; that the user applies FootMedic according to full directions and uses only as intended.

Stats from American Podiatric Medical Association.

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