This exercise focuses on the obliques and hip abductors.
- Lay with your hip and side on the BOSU, top leg outstretched, bottom leg slightly bent and resting on the ground. place your hands behind your head.
- Simultaneously lift your upper leg and upper body, in somewhat of a side crunch. Be sure to keep your upper body facing forward rather than twisting it. do 5-15 of these and switch sides.