Of all of the hamstring muscle group the biceps femoris muscle is the most commonly injured muscle in sports, especially requiring interval sprinting (Dolman, Verrall and Reid, 2014). Biceps femoris tendinopathy refers to dysfunction within the biceps femoris (Hamstring) tendon located at the back of the knee.
The function of the biceps femoris tendon is to transmit forces produced by that part of the hamstring muscle group to bend or resist extension of the lower leg. The biceps femoris muscle is see as the muscle which has to exert more force relative to the other hamstring muscles.
Injury occurs predominantly in sports involving a lot of acceleration and deceleration.Repetitive use of the biceps femoris muscle and therefore the biceps femoris tendon, can lead to microscopic tears within the substance of the tendon causing collagen disruption. Sports included are: football, rugby and hockey.
Management of this condition involves REST from the aggravating activity and a graduated strengthening protocol.
Dolman B., Verrall G. and Reid I., 2014, Physical principles demonstrate that the biceps femoris muscle relative to the other hamstring muscles exerts the most force: implications for hamstring muscle strain injuries, Muscle, Ligament and Tendon Journal, 4(3), pp: 371-377