Aim for a 45–90 second plank after 50. Learn how to test safely, spot form red flags, and build real core endurance.

How is your core strength? It's an essential part of staying healthy, so health and fitness expert Beth Oliver joined us to take us through a short test and show us how to improve it. Building a ...

Four quick tests after 50 check balance, leg power, push strength, and grip so you can stay strong and independent.

Core training has always been part of military PT and fitness testing. From crunches to sit-ups, flutter kicks, leg tucks and plank poses, the U.S. military uses many exercises to test core strength.

Borrowed from the Army’s fitness test, these moves build the kind of strength and conditioning that carries over to real life ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Working with a kettlebell takes core strength, stability and power, and ...

If you can perform 8–12 clean decline pushups with full control, your upper-body strength ranks well above average for your age. This level of performance shows strong pressing muscles, resilient ...

If you’ve ever tried them, you know side planks are challenging­—even more than regular planks. But they’re a critical move, says Keli Roberts, an exercise physiologist with the American College of ...

Now that the leg tuck is officially no longer part of the Army Combat Fitness Test (ACFT), the only choice that soldiers have is to replace it with plank pose. That means you need to incorporate ...

Even if you think you’re super strong and mobile, the strength and mobility test going viral on TikTok just might surprise you. While it looks easy and straightforward, pretty much everyone who tries ...