Alligator crawls are the wildest way to work your entire body like an animal. Here's exactly how to perform the exercise, plus a way to make it even harder.

Like alligator crawl or inchworms, the bear plank leaves your muscles shaking. Here's a step-by-step guide to the challenging variation.

Traditional aerobics mostly engages the legs and cardiovascular system of the body by employing rhythmic movement techniques.