Strengthen more than just your core muscles with the humble-yet-mighty plank.

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 ...

Why one trainer calls the plank variation "no joke." ...

Since Anne Hathaway’s trainer, Monique Eastwood, shared 10 game-changing insights into Anne’s full workout plan with us, we’ve taken as many tips as we can from Monique’s Instagram page. Most recently ...

I don’t love planks. There I said it. Isometric exercises (or holding one position) are not my thing. I prefer other types of core exercises (hi dead bugs, bicycle crunches, inchworms, or V-ups!) over ...

-Hey, what's up, friends? I'm YoYo and I'm super pumped that you're here. So let's get down on the floor. Let's try this. And remember this challenge is... So, give it a shot, see how you can do in ...

Add Yahoo as a preferred source to see more of our stories on Google. Most people don't feel excited by the idea of holding a plank. Of all the workouts out there, it may just be the most brutal. And ...

Celebrity fitness coach Namrata Purohit knows exactly how to keep her Instagram family hooked. Whether it is sharing workout clips, quick fitness tips, or fun challenges, her content is always ...

Struggling to motivate for yet *another* at-home workout? This 28-day abs challenge is sure to keep you on track. All you have to do is press play. Start your week off with a full, 20-minute Pilates ...

Margot Robbie, pictured here on the set of the "Barbie" movie wearing a pink and white gingham dress, trained with David Higgins to get into top character shape. (Photo: Everett Collection) This ...