Russian Twist on the Stability Ball Start by placing a weight against your chest seated on the stability ball Roll out on your back while raising the weight overhead Roll to on side holding the weight out Roll back to starting position Repeat on other side Safety tip: To maximize this exercise, squeeze glutes tight and as you roll to …

by Judy Oberdorfer, Certified Personal Trainer   This exercise is not only beneficial for core strength, but also balance.  The exercise begins on your hands and knees with your hands directly under your shoulders and knees directly under your hips.  Because balance can be a challenge with this exercise, start by sliding one leg back and lifting it off the …