Peak Pilates Master Trainer Colleen Glenn demonstrates the proper setup for the Stomach Massage Series. The first exercise in this series is Round Back. This exercise is intended to massage internal organs while opening the lower back. Round Back maintains the C-Curve and initiates from the Powerhouse. Hands Back is the next exercise in the series and is intended to open the lower back and chest while working the muscles in the upper back. Reaching is the third exercise in the series and was created to maintain a spinal lift without support. The final exercise in the series, Twist, is designed to strengthen breath with movement and massages the internal organs.