The three powerful muscles running down the back of your thigh are the semitendinosus, semimembranosus, and the bicep femoris. Together, these muscles are known as your hamstrings. The hamstring is ...

Your hamstring is a group of three muscles along the back of your thigh. These muscles help you bend your knee and straighten and rotate your leg. If the muscle fibers or tendons that connect your ...

The hamstring is a group of three muscles that run up the back of your thigh. Sports that involve a lot of sprinting or stop-and-start movement, like soccer and tennis, may cause tightness in your ...

Various exercises may reduce tight hamstrings and lower the risk of injury. People can do hamstring stretches sitting on a chair, lying down, against a wall, and more. People who participate in sports ...

Symptoms of tight hamstrings can include stiffness and limited mobility. People may also notice cramping, pain, swelling, and bruising. Tight hamstrings are usually due to exercise or other intense ...

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Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. For strong, powerful ...

Hamstring exercises include the deadlift, hamstring curl, Bulgarian split squat. To avoid injury, warm up your hamstrings before working out with mobility exercises like toe touches. Recovery is key ...