Alternating Push-up Plank
We’re bringing sexy back with this complete upper back exercise! Added bonus–engage your core to work your abdominals at the same time! How to: 1. Get in plank position on your elbows. See Plank blog bit.ly/19tLx6a for proper form. 2. Start with your right arm—completely straighten your arm, palm flat on the floor or mat. …