The best ab rollers work so much more than your core, offering a blend of strength, stability and mobility for a full-body burn.

How to do mountain climbers: Get into a high-plank position with your wrists directly under your shoulders. Keep your core ...

Best core tightening gadgets to sculpt abs and strengthen the core - High-tech tools to help you achieve a firm and defined ...

For a more advanced version, try a standing squat. "Come straight down, driving your knees out, and keep your chest up," ...

But if you are curious about the basics, it is possible to try Pilates out at home without any equipment. Focus on form, not speed. Rounds: Do two rounds all the way through with a 30 second rest ...