A strong, stable core is the foundation you need to not only prevent injury but move freely and strongly in every workout. Join the 30-day plank challenge and youll see noticeable changes in just a months time.How To Plank1. Place elbows directly beneath your shoulders, legs extended. 2. Press through your heels so calves are lengthened.3. Relax your hand and look at the floor.4. Keep your body in a straight line.
The 30-Day Plank Challenge
