Feldenkrais Happy Hamstrings This is one of the Feldenkrais Exercises involved in learning how to integrate the hamstrings in movement while softening and lengthening them. This lesson involves rotation of the leg and crossing the midline. This is a way of using Feldenkrais exercises in developing control and helps with balance. Very gentle reaching motions with the hands as your legs are put in slightly different holding positions. We offer this Feldenkrais Awareness Through Movement lesson along with the other Feldenkrais Exercises for the hamstrings.