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.

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 ...

Symptoms of tight hamstrings can include stiffness and limited mobility. People may also notice cramping, pain, swelling, and bruising. They are usually the result of exercise or other intense forms ...