Plantar Fasciitis

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Connected to · 1

regulates · 1

Knee Pain
Plantar fasciopathy and jumper's knee follow the same script of degeneration after overload: when load jumps suddenly, repair cannot keep up. The main line of treatment is heavy slow resistance and eccentric training to make the tissue stronger, not anti-inflammatories plus complete rest.

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How the plantar fascia holds the arch

EVIDENCERCT 1

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The plantar fascia is a thick sheet of connective tissue. It starts at the lower inner edge of the heel bone and fans out into five bands that attach at the base of the five toes. It is not a muscle. It is made mostly of tightly packed type I collagen, it can barely contract on its own, and its job is to take tension passively.

The arch is not a rigid vault but a bridge with a string. The heel bone, the fascia and the forefoot form a triangle, and the fascia is the bowstring along the bottom. When you stand, walk or land, body weight presses the arch down, the string tightens, and its tension holds the arch back up: soft enough to cushion a landing, stiff enough to pass force on at push-off. Common heel pain is mostly this repeatedly tightened string being overloaded, not a piece of flesh that is inflamed.

A small share of heel pain is something else. A heel that is red, swollen and hot, with fever, especially if you have diabetes or broken skin, may be an infection: go to the emergency department right away.

Watch this step as a mechanism animationOpen mechanism

Educational content, not medical advice — consult a clinician.

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Plantar Fasciitis

Story

Connected to · 1

regulates · 1

Knee Pain
Plantar fasciopathy and jumper's knee follow the same script of degeneration after overload: when load jumps suddenly, repair cannot keep up. The main line of treatment is heavy slow resistance and eccentric training to make the tissue stronger, not anti-inflammatories plus complete rest.

Read full story

Stop 1/5

How the plantar fascia holds the arch

EVIDENCERCT 1

READ THE ORIGINAL

The plantar fascia is a thick sheet of connective tissue. It starts at the lower inner edge of the heel bone and fans out into five bands that attach at the base of the five toes. It is not a muscle. It is made mostly of tightly packed type I collagen, it can barely contract on its own, and its job is to take tension passively.

The arch is not a rigid vault but a bridge with a string. The heel bone, the fascia and the forefoot form a triangle, and the fascia is the bowstring along the bottom. When you stand, walk or land, body weight presses the arch down, the string tightens, and its tension holds the arch back up: soft enough to cushion a landing, stiff enough to pass force on at push-off. Common heel pain is mostly this repeatedly tightened string being overloaded, not a piece of flesh that is inflamed.

A small share of heel pain is something else. A heel that is red, swollen and hot, with fever, especially if you have diabetes or broken skin, may be an infection: go to the emergency department right away.

Watch this step as a mechanism animationOpen mechanism

Educational content, not medical advice — consult a clinician.