"Starting in the plank position with your elbows and forearms on the ground," explains Woodhouse. "Your elbows should be in line with your shoulders, and also keep your legs and back straight. Then, slowly move into the press-up position with your arms extended straight, keeping your legs and back straight [throughout the entire movement]. Repeat this ten times, going back down onto your elbows, and then back up into the press-up position. This exercise builds shoulder stability and overall endurance."