The Hamstings (back of thigh) are made up of three muscles, the Biceps Femoris, Semitendinosus, and the Semimembranosus. The Hamstrings are fast twitch muscle fibers and respond well to low reps and powerful movements. The main functions of the Hamstrings are knee flexion (bringing the heel up towards the buttocks) and hip extension (moving the leg to the rear/backwards).
Top 5 Hamstring Exercises