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Hamstring Exercises

By , About.com Guide

Updated April 04, 2012

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The hamstrings are the group of muscles on the backside of your thighs, from your hip to your knee. They are three different muscles: biceps femoris, semimembranosus, and semitendinosus. The hamstrings get a workout when running, walking, and biking as they flex the leg and allow it to twist.

Runners often experience tight hamstrings and are often afraid of getting a pulled hamstring -- a painful injury that requires weeks of rest to repair.

Hamstring Exercises

Hamstring Stretches

Hamstring Injuries

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