Back Pain App for Core Back Muscles

Strengthen core back muscles while you sit. This is a back app chair which they say is much better for your back than ordinary office chairs. It has a unique training of core muscles (patented technology.) It gives you a better posture than when on ordinary office chairs. You will feel less strain, and less fatigue. It is a similar posture and movement to when standing. For more details just click on the link on the above photo.