Side Burpee

The Side Burpee exercise works your abs, obliques, hips and legs.

Hold on to the ledge with one hand, and lift your knees and place your feet on the wall. Push your feet off the wall and extend them parallel to the surface, as if you're in a side plank position. Return your feet to the top position on the wall, and repeat. Do this for one minute, switch sides, and repeat.