The plank is one of those timeless exercises that just keeps giving. Simple in concept yet incredibly effective, it's a staple in fitness routines for a reason: it's a fantastic way to build core ...

‘In your 20s and 30s, being able to plank for 45-60 seconds is a solid marker of good core endurance,’ says PT Joseph Webb, ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Planks are a go-to exercise for delivering full-body benefits with zero equipment. “If done correctly, ...

How long can you hold a plank — and how does it stack up to others in your age group? That’s the question that was posed on "Fox & Friends" Thursday morning, when co-hosts Brian Kilmeade and Lawrence ...