Warning: Undefined variable $tag_meta in /srv/users/musclematters/apps/musclematters/public/wp-content/themes/trapezius/inc/template-tags.php on line 110
4 Common Causes of Hamstring Tightness
A hamstring is a group of 3 muscles that run between the hip and the knee. The muscles work together for hip extension and flexing the knee. Hamstring tightness is a common problem, especially in sports that involve sprinting, but...