The front plank exercise is commonly performed by athletes to improve core strength and stability, but unfortunately, it's commonly performed incorrectly. What may seem like a simple position to ...

Ah, the plank. It may just be one of the most intimidating exercises. Anyone who has shook their way through one knows that the isometric exercise appears simple, but is anything but. To the contrary, ...

Planks are great, but they aren't the be-all and end-all of core training. After all, most people tend to just "hang" in them -- which completely sells their results short. And, even when performed ...

Start on all fours. Extend your right arm in front of you and your left leg behind, actively reaching in opposite directions.

As a former U.S. Marine, Erin Oprea is dedicated to fitness. Now a Nashville-based personal trainer with clients like Carrie Underwood, she uses her expertise to help those with busy lives stay fit.

Hopefully by now you've given up sit-ups and crunches as your go-to core exercises. Biomechanics experts have proven that they put too much unnecessary stress on the lower part of your spine. And if ...

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! Ah, the plank. It may just be one of the most intimidating ...