By Dr Tony Setiobudi BMedSci, MBBS, MRCS, MMed (Ortho), FRCS (Ortho) The hamstring is a group of 3 muscles called semitendinosus, semimembranosus, and biceps femoris. A hamstring injury occurs when the hamstring muscles, which affect one or more of the muscle groups, tear or are strained. It happens when the hamstrings are overstretched or overloaded with too … Continue reading Hamstring Stretching Exercise