This video shows the Box Crossover with a Push Up (BxP). Start off to the side of a box (12″ box used in this video) and perform a push up. After the push up, use the outside hand to crossover onto the box and then the inside hand to cross-under onto the box. To get off the, box cross-under with outside hand and then cross over with inside hand. Perform another push up and then repeat the sequence to the original side. This constitutes one rep. Start with 1 set of 5 (this means you will perform 2 push-ups per rep), and progress as you become stronger.