Shiatsu Swivel Seat Admin Apr 29, 2014 share Facebook Twitter Google + LinkedIn Pinterest Email Share... Demonstrating the state-of-the-art shiatsu swivel seat, the video below, explains how this special seat assists with spinal correction and alignment while relieving stress and loosening lumbar muscular tension. Found in the IT-8500, this seat complimented with an advanced airbag system for thigh, glute and hip massage, is utilized in the advanced stretch feature for spinal decompression.