Definition
The 'hamstring' refers to a group of three muscles located on the back of your thigh: the biceps femoris, semitendinosus, and semimembranosus. These muscles are primarily responsible for knee flexion (bending the knee) and hip extension (straightening the leg behind you). Think of them as the brakes and accelerators for your legs. 🦵 They work together to control movement and stability. Hamstring injuries are common in athletes.