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Windlass Mechanism


The Windlass Mechanism forms the basis of the biomechanics behind everything we do at profeet.


   ------------- = spring ligament
   ------------- = plantar fascia

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Windlass Mechanism in Biomechanics

Heel Strike (breaking phase)

Reverse Windlass Active

  • Foot in breaking phase in preparation for heel strike and shock absorption.
  • Plantar Fascia in tension and toes flexed.
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Biomechanical Analysis

Foot Flat (support phase)

Windlass inactive

  • Support phase.
  • Spring ligaments capture body weight.
  • Foot pronates.
  • Posterior Tibialis helps decelerate medial arch.
  • Plantar Fascia - in tension.
  • Most joint alignment problems occur.
  • Profeet utilises this inbuilt natural mechanism for position the foot for moulding.
  • Most injuries or discomfort occurs at this point which is the windlass mechanism is not functioning.
  • A profeet custom insole will support and stabilise the foot.

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Toe off (propulsive phase)

Windlass active

  • Calf elevates foot.
  • Body weight passes forward of foot.
  • Peroneus Longus plantar flexes first ray in support and propulsive phase of gait - supination of forefoot.
  • Plantar Fascia tension at maximum.
  • Foot forms rigid lever for propulsive phase.

biomechanics of the feet

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