Burns: 50 Calories in 10 Minutes
How To: Begin in bridge position with shoulders on the stability ball, core tight and knees bent at a 90 degree angle. Hold medicine ball with both hands through out movement. Twist your upper body bringing your arms to your right side, crunching your abs on the right side. Return to beginning position and repeat on other side.
Main Muscles Used: Core – Abs. Lower Back – Thoracolumbar fascia. Gluteus Maximus. Quadriceps.