"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Situps and crunches aren't the only (or even the best!) way to strengthen and define your abs. For proof, ...

Confession: I'm a certified personal trainer, but I absolutely dread core work. (Anyone else?) My loathing could be because my core has always been one of my weakest muscle groups, or the burning ...

Add Yahoo as a preferred source to see more of our stories on Google. Woman performs sit-up holding a kettlebell above her in one hand. A man stands next to her. There isn’t much you can’t train with ...

When I’m short on time and equipment (often), I use a medium to heavy kettlebell and get to work strengthening my core muscles at home. These three kettlebell exercises will crop up in my routine ...

While core exercises typically conjure up images of planks and bird dogs, the kettlebell is an unlikely hero when it comes to ab workouts. The versatile and dynamic piece of equipment challenges your ...

These abs exercises using the best kettlebells will work your abdominals, lower back and core from a variety of angles, so that you get balanced muscle and strength gains across your entire midsection ...

Sometimes it’s all in the design. One trip to the gym and you’ll quickly learn that weights come in many forms. The kettlebell, with its handle and bottom-heavy design, begs to be used for dynamic and ...

It’s a debate as old as time in the fitness world: dumbbells or kettlebells. Truly, there’s room in the metaphorical sandbox for both, but many gym-goers — especially those just starting to strength ...