This exercise utilizes the URBNFit Exercise ball and loads hamstrings ballistically. To perform, lie on your stomach and place the exercise ball as shown in the image below. Then start to slowly kick the ball with alternating feet, increasing speed as you are able to. You may have to stabilize the ball with one hand or have a friend hold the ball as you perform these hamstring tantrums which are great for rehabilitation following a hamstring muscle strain or an ACL injury.
This movement has been clinically shown to have one of the highest levels of hamstring recruitment (even higher than the Nordic Hamstring exercise). If you'd like to purchase a ball for yourself, head over here. As an Amazon Associate, Rehabilitation Health and our health professionals/practices earn from qualifying Amazon purchases.