Basic crunch on a BOSU. Good for abdominal strength and core stability.

Instructions

  1. With both feet flat on the floor, about shoulder width apart, place the small of your back about half-way between the top and the bottom of the BOSU. For this exercise, rest your hands on your thighs.

  2. While focusing on your abdominals, roll your body upward and slide your hands toward your knees. Think about pulling with your abdominals, bringing your ribcage closer to your hipbones. Do the exercise slowly to focus on working the abdominals and not using momentum to do each crunch.

  3. For more of a challenge, put the small of your back on the top of the BOSU and / or put your hands behind your head (remember: don't pull with your arms). You may also add a trunk rotation at any stage, or hold any position for a few seconds.