Visit dailyburn.com Need to work out anywhere, anytime? Stream All Our Workouts. Only At Spoiler Alert: Crunches and sit-ups are not the secret to six-pack abs. In fact, repetitive or excessive spinal flexion (e.g.
via Pocket http://dailyburn.com/life/fitness/six-pack-ab-exercises/?mtype=5&partner=huff
No comments:
Post a Comment