By Maryann Berry Breaking Muscle
If you have chronically tight hamstrings and your stretching routine is not helping, then check out this video. The exercises demonstrated in this video, when done correctly, have the potential to make an immediate and noticeable improvement in your hamstring flexibility.
Be sure to watch all the way through to the end of the video where you will see a clear before-and-after comparison of the client’s hamstring flexibility as a result of performing two simple spine and hip extension exercises.
Source: http://breakingmuscle.com/video/hamstrings-101-start-by-stretching-your-back