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 ...

Adding leg lifts to the reverse plank makes it more dynamic by engaging more muscle groups at once. While holding a standard ...

We're here to help you challenge your core (you're welcome) with this plank series. It's part of our Jump-Start fitness plan, helping you move every day for two weeks. This challenge uses all sorts of ...

We all know plank position is good for us. But. Um. What if you lack the core strength needed to suck in the gut and engage the back, glutes and quad muscles — all while balancing between your toes ...

This no-movement exercise is one of the most reliable ways to measure core endurance, posture control, and spinal ...

When it comes to losing weight safely, experts say that being in a small calorie deficit (where you burn more than you ...

When you're doing a plank, you're (hopefully) concentrating on your form. Actually performing the exercise correctly is more challenging that just bracing your elbows on the ground and holding ...

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, ...

Nice to meet you, obliques! A strong core is the foundation to a strong body. Think about it: A tree would fall if its trunk wasn’t solid and stable. Doing core work isn’t just about your middle, ...