The Windlass Effect and Pes Planus - N
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Questions and Answers

What is the windlass effect of the plantar fascia?

  • The contraction of intrinsic muscles lifts the calcaneus.
  • The increased tension raises and strengthens the arch. (correct)
  • The forefoot sags under body weight on tiptoes.
  • The arch remains flattened and midfoot/forefoot unstable

    • What is the windlass analogous to?

  • The calcaneus
  • The metatarsophalangeal joint (correct)
  • The intrinsic muscles
  • The extrinsic muscles

    • What happens when extrinsic muscles contract?

  • The forefoot sags under body weight on tiptoes.
  • The arch remains flattened and midfoot/forefoot unstable
  • The calcaneus is lifted, transferring weight forward (correct)
  • The metatarsophalangeal joints are extended and the plantar fascia is stretched

    • What is the role of intrinsic muscles in the windlass effect?

    <p>They provide additional reinforcement.</p> Signup and view all the answers

    What is pes planus?

    <p>A poorly supported medial longitudinal arch.</p> Signup and view all the answers

    What happens to the forefoot on tiptoes in someone with pes planus?

    <p>It sags under body weight.</p> Signup and view all the answers

    What limits the windlass effect in someone with pes planus?

    <p>Reduced extension of metatarsophalangeal joints.</p> Signup and view all the answers

    What is the result of the arch remaining flattened in pes planus?

    <p>Decreased stability of the midfoot and forefoot.</p> Signup and view all the answers

    What is the windlass effect of the plantar fascia responsible for?

    <p>Supporting the medial longitudinal arch.</p> Signup and view all the answers

    What is the role of extrinsic muscles in the windlass effect?

    <p>They lift the calcaneus.</p> Signup and view all the answers

    What is the result of reduced extension of metatarsophalangeal joints?

    <p>Decreased stability of the midfoot and forefoot.</p> Signup and view all the answers

    What is the windlass effect?

    <p>The extension of the metatarsophalangeal joints and stretching of the plantar fascia</p> Signup and view all the answers

    Study Notes

    • The windlass effect of the plantar fascia is demonstrated on tiptoes.
    • The windlass is analogous to the metatarsophalangeal joint.
    • Contraction of extrinsic muscles lifts the calcaneus, transferring weight forward.
    • This extends the metatarsophalangeal joints and stretches the plantar fascia.
    • The increased tension raises and strengthens the arch.
    • Contraction of intrinsic muscles provides additional reinforcement.
    • Pes planus (flat foot) has a poorly supported medial longitudinal arch.
    • Forefoot sags under body weight on tiptoes.
    • Reduced extension of metatarsophalangeal joints limits the windlass effect.
    • Arch remains flattened and midfoot/forefoot unstable.

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    Description

    Test your knowledge on the windlass effect and its importance in supporting the arch of the foot. Learn about the role of extrinsic and intrinsic muscles, the plantar fascia, and the metatarsophalangeal joint in this process. Identify the causes and effects of pes planus and understand why a well-supported medial longitudinal arch is essential for stability and balance. Take this quiz to become a pro on the windlass effect and its impact on foot health!

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