The hamstring muscles are responsible for your hip and knee movements in walking, squatting, bending your knees, and tilting your pelvis. Hamstring muscle injuries are the most common sports injury.

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 ...

You can do a hamstring curl with or without gym equipment. Some variations involve standing, sitting on a chair, or lying face-down on the floor. These muscles function together to bend your knee and ...