“The plank is a great exercise to help strengthen and stabilize your core muscles,” says Aran Quinn, a coach at W10 Performance. “A strong core is important for providing the body with the strength ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." As a passionate and proud fitness coach, certified personal trainer, and mom, I know firsthand that ...

Hold a strict forearm plank for 90 to 120 seconds to prove elite core strength after 50. Get clear form cues, progressions, ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? As a passionate and proud fitness coach, certified personal trainer, and mom, ...

As a passionate and proud fitness coach, certified personal trainer, and mum, I know firsthand that working out isn't all about sculpted muscles – it's about building strength from the inside out. I ...