How to Work Out with an Exercise Ball
Learn how to amp up your fitness routine with a stability ball or bosu ball from personal trainer Rachel Shasha in these Howcast workout videos.
ABOUT THE EXPERT
Rachel Shasha is an NSCA-certified New York City-based personal trainer and fitness instructor. She has studied exercise physiology, nutrition, and psychology with degrees from both UCLA and USC. She integrates this educational training into the holistic approach she takes to training her clients.