The rotational toss with a medicine ball may already be a staple in your exercise routine and if it isn’t, it should be. A high-intensity exercises, the turning movement as you pick up and throw the ball targets the side section of your stomach, building out your oblique muscles. The heavier you go, the better, however, consistency is key for this one. Try and go for a minute straight without stopping. To complete the medicine ball rotational toss: