The starburst side plank variation strengthens the shoulders, abs and obliques. Here's why we love it at Tom's Guide.

"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 ...

Ellipticals, captain's chairs, and the decline bench are just a few of the best gym machines for ab strength. Here's your ...

While many workout regimens flame out as quickly as it took them to start trending, others stand the test of time. Exercises like tai chi, running, swimming, hiking and yoga, for instance, have been ...

The reigning king of classic physiques reveals the workout behind his chiseled core. In bodybuilding, few things are as coveted as a six-pack. Men chase them and admire them, and anyone who loves ...

There's been a lot of conjecture about Hailee Steinfeld's abs. The star sets the record straight on her routine. The year was 2019, and Hailee Steinfeld’s abs were, in her own words, “poppin.” So when ...

These are the best lower ab workouts for women to strengthen the deep core muscles and lower stomach. This women's lower ab ...

It may be the mark of the beast, but for those who are trying to get fit, “6-6-6” is also a subtle shortcut to beast mode. The viral 6-6-6 walking challenge is a flexible daily fitness routine that ...