Diseases

Biceps Femoris Muscle (Hamstring Injury)

Back

One of the posterior femoral muscles. It has two heads at its origin. The biceps femoris flexes the leg and rotates it laterally and extends the thigh, rotating it laterally. It is one of the hamstring muscle group and lies on the posterior, lateral side of the thigh.

SYMPTOMS

A typical injury to the biceps femoris occurs during sprinting (athletics, football, rugby, hockey etc.). If the muscle is not strong enough to cope with the forces going through it, the muscle fibres can tear. If this happens, the athlete will often feel a very sharp pain at the back of their thigh.

CAUSES

The biceps femoris muscle is important for knee flexion, internal and external rotation, and hip extension. Pain in the biceps femoris can be caused by several reasons. The most common condition is a strained muscle caused by improper lifting or too much exercise.