Fall marathons are close on the horizon and there's no better time to work yoga into your cross-training plan. The truth is, your hamstrings should be like rubber bands — not guitar strings. This 30-minute video features a functional sequence that will encourage your hammies to become more elastic so that you can maintain a more fluid stride and prevent injuries.

Check out more Jasyoga videos to optimize your running at jasyoga.pivotshare.com...