The original ib3 CHI Energizer bearing the original "Qi" logo : A top quality exerciser with a unique elliptical fish-like movement on the axis of the spine resulting in a full body massage including internal organs. Health benefits include pain relief for sore back, hips, and stiff muscles and joints. It provides passive exercise for individual with poor mobility. The motion of Chi Energizer works like lymphatic drainage massage therapy to stimulate blood, lymph and Qi circulation to detoxify our body from the inside out. It is great equipment for athletes. It removes lactic acid from tired legs.