So, your diet has been on point, and you've been cranking out tons of situps at the end of your lifts, but still, the set of defined washboard abs you were promised has yet to show up. What gives? You ...

According to experts, it takes just four core workouts to absolutely rip your top half to shreds, so you can get stronger.

Add Yahoo as a preferred source to see more of our stories on Google. Planks work your entire core, plus the thighs, arms and back. A strong core helps with posture, balance and stability, and can ...

A strong core helps with posture, balance and stability, and can prevent and reduce back pain. To effectively strengthen your core you need to work the low back, glutes, pelvic floor and the ...

If you’re tired of your usual ab workouts and want to mix things up, try adding kettlebell workouts to your routine. Kettlebells can be the perfect addition to give your abs a new challenge. Whether ...

When I don't have a ton of time for a workout (which is . . . most of the time), I love doing a quick ab and glute routine. For one thing, it doesn't take long to work up a burn in these muscles — ...

It can be tough to find easy ab workouts that are accessible and still deliver results. The fitness landscape is flooded with moves that promise to crush your core or obliterate your obliques. That’s ...

I'm always looking for new YouTube workouts (why yes, I do have three separate personal playlists of my faves), so when I saw Bretman Rock's ab workout video had racked up more than a million views, I ...

Worried that you'll never have a six-pack now that you have kids? This is the program for you.