This 15 minutes ab-stomach workout is all about slow and controlled balance / movements aka TUT (time under tension) which help you work deeper into all muscle fibers. Targets your upper body, back and pelvis flexion. Download our free app for this and many more exercises. #waffmedium #core #stomachworkout #coreworkout #abexercises #fitness #personaltraining #spinaldecompression #diaphramaticbreathing #longerandstronger #feeltheflow #chiropractor #chiropractic #lowbackpain #painrelief #decompression