Anatomy for Runners by Jay Dicharry

Author:Jay Dicharry
Language: eng
Format: epub
Publisher: Skyhorse Publishing
Published: 2012-03-25T16:00:00+00:00

Active Arch Support

The arch doesn’t plummet to the floor and bounce up on its own. While the joint surfaces and plantar fascia provide passive guidance for this motion to occur, the foot is under active control. Specific muscles inside the foot, especially the big toe, are at work to keep things in check throughout the twisting and untwisting.

While forces from above are trying to collapse the arch, you have structures in your body designed to keep the foot under control. If a deficient flexor hallicus brevis (FHB) does not produce tension to stabilize the arch, increased strain is transmitted across the plantar fascia. This is the typical mechanism for plantar fasciitis, as well as a host of other lower leg injuries.

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