Yamuna® Body Rolling Yamuna® Body Rolling is a revolutionary fitness technique that uses six to ten inch inflatable balls to strengthen, tone, realign the body, and release energy blockages, while providing sensations that can surpass the bliss of a massage. Like yoga and pilates, yamuna® body rolling will condition and lengthen your muscles, improve core strength, and enhance posture, flexibility, and balance. But unlike those practices, body rolling also realigns your spine and joints, relieving pain and muscle tension and providing a workout, a massage, and a chiropractic session all at once. ("The Ultimate Body Rolling Workout - Yamuna Zake and Stephanie Golden")