The advice is common — and vague. Here’s how to do it properly. By Hilary Achauer When I began weight lifting in my late 30s, my coaches often gave me a somewhat baffling cue. “Engage your core,” they ...

Doing the exercise regularly helps improve your posture, which keeps you moving better throughout the day.

A typical New Year’s resolution is to exercise more, although where to start can feel daunting. Some opt for a fitness class; others create a plan with a personal trainer or work out from home.

If you’ve ever worked with a trainer, attended a group class at the gym, or read a set of exercise instructions, you have, without a doubt, been told to “engage your core.” The fitness world is ...

Some people work on their core because they’re hoping for a 6-pack or a flat tummy. But having a sturdy core provides you with much more than a toned look. A strong core — which includes the back, ...

According to a fitness expert at Lifetime in New York City, how long you should be able to hold a plank for varies given how ...