It helps you extend your thigh and rotate your tibia — the main bone in your lower leg, and flex your knee. Weak or tight hamstring muscles can result in muscle strain. In fact, hamstring muscle ...

The hamstrings are also responsible for flexion, or bending, of the knee. Hamstring exercises that focus on hip extension, ...

Anterior cruciate ligament (ACL) ruptures are also prevalent and typically require surgery from hamstring grafts, which often results in chronic deficits in eccentric knee flexor strength, a known ...