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 ...

R: Return cues to starting posture. N: TRX resisted torso rotation (press/row) A: Mid-length P: SSW S: Align right shoulder with anchor point, grip handle with right hand, place left hand over right ...

Even after three months at the Port Charlotte YMCA, Cara McCarthy hesitates at the torso-rotation machine. "I'm still figuring this one out," she said. "Adjust it and lean back, I'm thinking." ...

Andrea Doddato works with many of the top stars on the LPGA and other tours and will periodically share tips from her workouts with GolfChannel.com. This week, Doddato explains how she’s transformed ...

Russian twists, an effective core exercise, can help tone abs and lose weight while sitting. Proper form and controlled movements are essential to avoid injury and maximize benefits. Start with feet ...