To learn whether or not your upper-body strength level is where it should be—or needs a bit of a boost—we spoke with experts.

The plank is one of those timeless exercises that just keeps giving. Simple in concept yet incredibly effective, it's a staple in fitness routines for a reason: it's a fantastic way to build core ...

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 ...

Start on all fours. Extend your right arm in front of you and your left leg behind, actively reaching in opposite directions.

Estrogen is an important hormone for maintaining muscle quality, with a big impact on tendon and joint elasticity, but it ...

"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 ...

Maintaining core strength and stability is important for wheelchair users. Routine core work may help promote trunk stability, reduce pain, and increase mobility. Your core is the cylinder of muscles ...

Hold a dumbbell or kettlebell at shoulder height. Brace your core and press the weight overhead. Lower it slowly back to the ...

For a program to be most effective, Washington recommends sticking to it for at least four to five weeks before changing it ...