Swopper Air Motion Chair - Stone Grey Good circulation. Good mood. Sitting on the swopper chair makes you straighten the upper part of your body, which frees the diaphragm, you breathe deeper and your circulation is stimulated. Always in motion. By keeping balance on the sprung seat your body is always slightly in motion. Training for your muscles. Since your entire body is slightly in motion all the time on the swopper chair, practically all muscle groups remain active and well supplied with blood. Keeping ligaments and joints fit. Moving your joints, even when sitting, stimulates the formation of synovia (joint fluid).