Really want to get into the deepest parts of your core? How about a plank? There are difficult varieties like the hardstyle plank and eight-point plank, a favorite of pro surfer Lakey Peterson. There ...

In the fitness world, where trends come and go, some exercises remain fundamental pillars due to their proven effectiveness. One of them, without a doubt, is the abdominal plank. Far from being just a ...

The plank challenge is a 30-day program to strengthen the core and build up endurance. Each day of the challenge, you’ll gradually increase the amount of time that you hold a plank. By day 12 of the ...

This 30-day challenge is designed to help you progress the amount of time you can hold a plank position, essentially by holding a standard plank for longer periods. But it also helps by challenging ...

Trainer Heather Robertson is, in my opinion, one of the best fitness professionals on YouTube (we rounded up 10 of these channels here). She posts a wide range of at-home workouts — HIIT, lower body, ...

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 ...