A condition characterized by a sudden sharp pain in the upper calf, which feels like a ‘shot in the leg’. It is due to a rupture of the musculotendinous junction of one of the heads of the gastrocnemius muscle. The injury is caused by a sudden extension of the knee while the foot is dorsiflexed, or by a sudden dorsiflexion when the knee is extended. The injury occurs most often in middle-aged athletes after some degeneration of the tendon, who play sports such as tennis, squash, and basketball.
Subjects: Sports and Exercise Medicine.