Russian Twists

Enables all core muscles to work together.

Sit on your butt with knees bent up toward the ceiling. Holding your legs with your hands, lift your feet one inch off the ground and balance. When your balance is perfect and your back straight, clasp your hands in front of you. Twist down from side to side, tapping your elbows to the mat, twenty-five times each. Advanced: Hold a hand weight or medicine ball while twisting.