Ain't No Mountain High Enough

To improve your upper body strength, try the mountain climber exercise. Start in plank position without allowing your hips to sag. Be sure to pull in your powerhouse and place your hands directly under your shoulders. Next, pull your right knee toward your left shoulder. Slowly straighthen your leg, return to the starting position and try on the alternate side. Aim for four sets of ten repetitions. For a variation of this exercise with the stability ball, click here.