Watch us take on a fun pull-up challenge with a partner! This video showcases teamwork, strength, and determination while ...

Medicine ball Russian twists are great for working the obliques and strengthening the core. Sit back-to-back with your ...

Get moving with this 30-minute session focusing on core work and glutes. Led by PS Fit instructor Natalie White, and assisted by Madisyn Maniff and Sierra Fujita, this fun class is bound to have you ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." That's why it pays to dedicate focused training time on your core. You can start with these ab exercises ...

After years as a self-professed Cardio Queen, actor Jennifer Aniston has relinquished the title to focus, instead, on an ...

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If the goal of your workout is to walk away with a chiseled six-pack, you’re missing the point. A strong core results in fewer injuries, better posture and balance and less back pain. To perform well ...

It’s estimated that 2 million people in the U.S. will experience a back injury this year. Many of these injuries are because of postures held for prolonged periods and workplace incidents. Many more ...