• Sit-ups target your abdominal muscles, back muscles, and hip flexors, while crunches only target your abdominal muscles. • Neither sit-ups nor crunches alone burn abdominal fat. Overall activity and ...

Sit-ups have been a long standing favourite in the world of ab exercises. But if you don’t like them, or struggle with floor-based exercises, then there’s plenty of alternatives out there that can ...

Not that fussed about sit-ups? Me neither, so I say sweep them to one side and hit more muscles in one go using the good old do-it-all compound exercise — a multi-joint, multi-muscle move that hits ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." If your body were a bicycle, your abs and back muscles—your core—would be the frame. You need a ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images We’ve said it before and we’ll say it again — when it comes to building a ...

There are two kinds of people in this world: People who want to work their core and people who consider core exercises their worst nightmare. But regardless of which camp you fall into, if you are ...