The semitendinosus is one of the four muscles in the hamstring muscle group. The others are the semimembranosus and the biceps femoris. The semitendinosus is the longest of these muscles, and it runs ...

Your hamstrings are essential for walking, running, and jumping—in other words, when you're using your legs, you're more than likely depending on your hamstrings for proper healthy function. The ...

Tight hamstrings can be caused by prolonged sitting or not stretching enough. Exercises that stretch the hamstring muscles ...

A hamstring tear injury is a rip in the hamstring muscles. It happens when the hamstrings are overstretched or overloaded with too much weight. Depending on the injury, the hamstring can tear ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." THE HAMSTRINGS, ONE of the major muscle groups in the legs, are invaluable for the types of movements ...