The word "hamstring" refers to a group of muscles located at the back of your thigh. It is also used as a verb, meaning to injure or disable these muscles, usually by pulling or straining them. Full definition
It has been researched to significantly reduce hamstring injuries in athletes. (blog.trainheroic.com)
Crossing one leg over the other enables a deeper stretch of the calves and hamstrings by putting more weight on the leg that is being stretched. (ptinto.com)
Participants completed a series of hamstring stretches in random order with 48 hours separating the sessions. (sunlighten.com)