Many people speak of tight hamstrings after running. The description has become a bit of a throw-away line when talking about one of the most common aches and pains we feel from the rigours of our training.
Many people in fact fail to maintain a neutral pelvic position as they move. This is most likely due to a lack of core strength, and Hip flexor tightness. The pelvis tilting anteriorly (forward) increases the distance between hamstring origin and insertion, lengthening the hamstring muscles and increasing tension.
It’s quite possible that your hamstrings aren't tight because they’re chronically short, it’s far more likely that the feeling of tightness is there because the hamstrings are being held in a lengthened position due to poor Pelvic position and Core weakness.
Before you spend ages performing static stretches for your hamstrings, be smart and work on building Core Strength and achieving and maintaining proper pelvic position as you move. Taking part in our technique clinic classes, pilates and yoga classes are a great way to asses posture, muscular imbalances and range of movement.
The below link provides a video in relation to hamstring tightness.
http://www.youtube.com/watch?feature=player_embedded&v=iW3C4q4QmWk
The below link provides a video in relation to hamstring tightness.
http://www.youtube.com/watch?feature=player_embedded&v=iW3C4q4QmWk