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

The mountain climber requires you to hold yourself up with your arms, while using the abdominal muscles to drive the knee forward. For additional detail on how to do a mountain climber exercise, along with the benefits and variations, read more here.

• Start in a plank position with your wrists directly under your shoulders.
• Drive your right knee to your right elbow.
• Return to the plank position.
• Drive your left knee to your left elbow.
• Return to the plank position.
• Continue to alternate for 16 reps.