Muscle groups

Back, Core, Shoulders


Assume a pushup position, but with your elbows bent and your weight resting on your forearms. Your body should form a straight line. Brace your abs as if you’re about to be punched in the gut. Maintain this contraction throughout the entire exercise. Raise your right arm until it’s in line with your body. Hold for the time prescribed, and then repeat with your other arm.