Alligator Crawl Push-Ups
Challenge your core, strengthen your chest and everything you've got with alligator push-ups.
1. Begin in the traditional upstarting position of a push-up.
2. Lower your chest toward the floor while simultaneously bringing your left knee to your left elbow.
3. As you push up, walk the left hand forward and reverse-move to the right side.
4. Alternate across the floor or perform five to 10 alternating repetitions.