Your favorite ab-building machine at the gym may be causing you more harm than good. That's right—we're talking about the torso rotation machine. This is the Chubby Checker–inspired ab machine you sit ...

This exercise stretches the muscles of your core, chest and front shoulders. It also helps to improve the range of motion in your arms and torso, which are often tight after breast surgery. Supine ...

The best core exercises don't necessarily require you to get on the floor. These seven standing variations are sure to ...

Ready for some good news? This one workout can help you lose weight and tone your abs even when done while sitting. Russian ...