Place your feet in the foot cradles of the suspension trainer Opens a New Window. and get into pushup position with your hands on the floor. Drive one knee to your chest while the other leg remains extended. Now drive the opposite leg to your chest while you extend the other back. Continue so it looks like you’re running in place.
22. Situp and throw
Hold a medicine ball Opens a New Window. with both hands in front of your chest and sit on the floor. Anchor your feet under something sturdy for support, and lie back on the floor a few feet away from a brick or concrete wall. Explosively sit up and throw the ball into the wall and then catch it on the rebound. If you have a partner, you can throw the ball to him/her instead.