This exercise is to strengthen the hamstrings muscles. This first video is a straightforward hamstrings exercise.
In the second video as a progression we have added ankle weights and increased the speed and number of repetitions.
Here are some still images for anyone who cannot view the video.
|Lie on your stomach on a firm surface.|
|Bend the one knee slowly.|
|Bend it as much as you are able.|
|Slowly lower it again.|
|Then slowly bend the other knee. Alternate, and repeat 10 times.|