"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Bodybuilding coach Eugene Teo regularly shares advice on how to safely build strength and muscle while ...

This core-crushing breakdown highlights 10 plank variations designed by trainer Jade Morning to upgrade your abs routine and ...

Learn how to do the Copenhagen plank, a challenging side plank variation that strengthens your hips and core and improves ...

Has your core routine gotten stale? I know mine has. While crunches, Russian Twists, and planks are effective, after doing them a bunch, they might get a little, well, boring. Not to mention, there ...

Building muscle and strength in your lower body doesn't have to look like the same stale series of squats and forward lunges during every workout. For a better, well-rounded routine, you'll want to ...