I have been really interested in strength training lately and therefore not talking about running as much so I wanted to post a running link. If you have not already please check out Brian Mackenzie's website, www.iamunscared.com. He is the man behind crossfitendurance which programs the best endurance training ever! A lot of people have a hard time using their hamstrings when they run and more don't know what it means to use their hamstrings. They lack the perception, the body awareness and the drill in this link will help you get a grip on what using your hammies while running feels like, how to perceive it. basically here is the drill, make those hammies burn then go for a short run, rinse and repeat!