http://AskTheTrainer.com/medicine-ball-workouts.html Medicine ball workouts can be good for many people. They are just another form of resistance during these pullovers. You can perform these on a bench or stability ball. To keep your shoulders healthy make sure you do not flare out your elbows which will cause extra stress on your shoulders. For more information about medicine ball workouts visit. http://AskTheTrainer.com/medicine-ball-workouts.html