Five bodyweight ab wheel exercises from professional strength coach Jeff Cavaliere for strengthening your core muscles fast.
Get on all fours, holding an ab wheel in both hands. (It’s a wheel with handles on either side – if you don’t have one, use a small barbell with a towel wrapped around it). Roll forward, keeping your back straight, knees on the floor and extending your arms in front of you, then tighten your abs to pull yourself back to the starting position. (Via Men’s Health) Illustrations: Marc Laming
Workout: Jamie Sawyer