This Arms and Abs Workout Will Leave Your Upper Body Sore For Days

This is an advanced plank that uses a level change to add arm strength to the core stabilization.

• Start in a low plank position with your elbows directly under your shoulders.
• Move into a high plank by replacing your left elbow with your left hand and your right elbow with your right hand.
• Reverse the movement to bring yourself back to the starting position.
• Repeat for 10 reps.