Advanced Hamstring Exercise. Due to the position you are in and the fact that your using an exercise ball you will also working your core for stability.

Instructions

  1. Begin by laying on the floor on your back, arms crossed over your chest, with your heels on the exercise ball. Lift your buttocks off the floor into a bridge position. Lift one leg towards the ceiling.

  2. Using the leg that it still on the exercise ball, slowly bend the knee, pulling the exercise in toward you. Hold for a few seconds, then extend your leg back to the starting position. Do about 5-10 reps of this to begin, and then switch legs.