The gastrocnemius muscle is the large calf muscle at the back of the lower leg. It originates above the knee. As a result, it flexes the knee but only very weakly when compared to the hamstring muscles.
Gatrocnemius
The gastrocnemius muscle is the large calf muscle at the back of the lower leg. It originates above the knee. As a result, it flexes the knee but only very weakly when compared to the hamstring muscles.