In the classic pushup, your chest and shoulders move approximately 75 percent of your body weight; your biceps just keep your arms stable.
But when you turn your palms forward, a large portion of your body weight falls directly on your biceps.
So you'll build all your mirror muscles -- your abs, chest, and biceps -- with just one movement.
How To Do It
A. Grab a dumbbell in each hand and get in pushup position with your palms facing forward.
The dumbbells should align with the middle of your sternum, and your arms should be spaced about shoulder-width apart.
B. Without allowing your elbows to flare to the sides, lower your chest to the floor. (Your hands should touch the sides of your chest at the bottom of the movement.)