"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, ...

This lesser-known plank variation that was invented by Soviet special forces trainer Pavel Tsatsouline focuses on full-body tension and breath control to build a stronger core and a flatter midsection ...

Exercises like planks, sit-ups, crunches, and Russian twists all serve a purpose: they hit various muscles to build a ...

Get ready to twist and shout.

Kettlebells are a versatile, beginner-friendly modality that can make your core workouts more effective and varied, plus they’re fun! Remember: meet yourself where you’re at. Even adding just one or ...

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 ...

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 ...

Feeling bored of your go-to planks and crunches? Good news'your tried-and-true bodyweight exercises aren't the only way to whip your abs into shape. Feeling bored of your go-to planks and crunches?

This one’s an abs-olute winner. A classic, fit-for-all workout is back in the spotlight after a popular workout video resurfaced, showing a fitness influencer’s surefire way to a rock-hard core using ...

A CSCS trainer shares 5 standing exercises that target belly pooch after 55—no crunches required. Build strength and burn ...