David sustained a complete avulsion of his hamstring tendons from their origin on the ischial tuberosity. what classes of lever are the hamstring muscles

The hamstring muscles are considered as third class lever system.

Third class levers are the type of lever in which the applied force is situated in between the load and the fulcrum. In this case, the load is near the foot while the fulcrum is the ischial tuberosity and the applied force is on the hamstring muscles which are in between the two.

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