Based on my observations over the years here is my take on the hamstring pull situation in baseball and for that matter other sports. Too much emphasis on static stretching in warm-up. Warm-up to stretch, do not stretch to warm-up.Read more here
Flexibility of the hamstring is basically a non factor in hamstring pulls, it is dynamic hip flexibility that is important. You don't get that wallowing around on the ground in pregame stretch. Lack of sufficient warm-up. The current rage in warm-up does not involve enough movement, way too much at walking tempo, you need to build the warm-up in a crescendo to top speed sprints.
Another reason is too much emphasis on linear running mechanics, very little on turns. The hamstring is a transverse plane muscle that is stressed when running a curve and on deceleration. There is too much strengthening using non functional exercises in prone and supine positions.
Wednesday, April 2, 2008
Vern Gambetta makes some interesting points about the causes of hamstring injuries: