The
hamstring muscles is one of the third class lever. In a third-class lever, the most common in the
human body, force is applied between the resistance (weight) and the axis
(fulcrum). This originate from the
ischial tuberosity as a common tendon. Though the biceps femoris is known to be
injured more than the semitendinosus. The insertion works with contraction because the
origin is fixed attachment. The Hamstrings consist of three muscles the Biceps
Femoris muscle, the Semitendinosus muscle, and the Semimembranosus muscle.
