Crab Walks target your abs and chest. Do 8 to 10 reps.
Crab Walks: Get into a full push-up position with your abs contracted. Walk your right hand and foot a few inches out to the right thigh, followed by your left hand and foot. Continue to do this 2 times to the right and then walk them back. Repeat this on the left side. Make sure you keep your head and spine in a straight line and your abs engaged. Coordinate your hand and foot, so they touch down at the same time. Crab walks target your abs and chest. For a bigger challenge, after you've walked your right hand and foot to the right, rotate your body so your hips are stacked and your hand is reaching for the ceiling, then return to a pushup and repeat to the opposite side. Do 8-10 reps.