The one-arm push-up just might be one of the most difficult body-weight exercises to master. Almost 70 percent of your body weight is bearing down on one arm. If you can accomplish this fitness feat, it is a great party trick that will also impress everyone at the gym. In addition to giving you a slight ego boost, the exercise works wonders for your body as it strengthens your arm, shoulder, chest, core and even your hips.
How many takers?