The plank is one of the most commonly performed core-strengthening exercises, and whether you're getting your heart-rate up at Barry's or at home (using a Class FitSugar video, per chance??), there's ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: YouTube/E3 Rehab Having seen my colleague go for the two-minute Copenhagen plank ...

Planks suck and this one is the worst. The Copenhagen plank is a variation on the toughest part of your mat Pilates class: the already notorious side plank. This version specifically targets the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When you think of Copenhagen, smoked fish and bike lanes might come to mind. But in the fitness world, it ...

Side plants target the obliques, protect your spine, and strengthen your core, along with other benefits. To get the full effect, make sure you use the proper form. You can also try variations. The ...

Some of the best exercises are only a minute or two but are the most grueling. They will make you sweat, shake, and possibly collapse at the end, but they will tone you up, build muscle, and whip you ...

When it comes to ab workouts, there’s a nine out of 10 chance they will involve some sort of a plank. The move is a staple for good reason: They’re challenging and certainly bring the burn to your ...

I’m not sure I'll go back ...