Join us for an energizing outdoor workout as we explore a range of plank exercises designed to strengthen your core, arms, ...

The plank is one of the greatest exercises for working a whole bunch of different muscles at once (including those hard-to-reach lower abdominals) with no equipment other than a flat surface. And ...

YOU PROBABLY THINK you know how to do a plank. The ab training staple is relatively simple, after all—boiled down to the basics, all you need to do is get down on the ground and hold in place.

We received tremendous feedback from participants in The Wall Street Journal Fitness Challenge, a six-week program developed by Arnie Kander, an NBA sports performance coach. Haven’t signed up yet?

Planks are a simple, equipment-free exercise that strengthen your core, improve posture, and protect your back ...

While the standard plank is widely incorporated into core workouts, the side plank is often overlooked. This variation of the plank targets the obliques, the muscles that run along the side of your ...