Are you ready to level up your workout with Kayla Itsines's 500-rep challenge? Zero equipment is needed, so there is nothing stopping you from getting in this sweat session! There are 10 exercises.

"I'm doing my least favorite thing, which is abs," Emily Thorne, a Canfitpro-certified trainer known as Emkfit, says in the beginning of this 500-rep ab challenge workout, but she knows so many of you ...

50 push-ups sounds pretty serious, right? Even a little daunting, perhaps? Well, this week you’re going to conquer your fears and accomplish just that — 50 push-ups — plus 50 reps of nine other ...

*For the first round, perform 25 reps of each of the exercises below. In the second round, do 15, and for the final round do 10. *Click the links below for how-to demo videos. Push-up: Start lying ...

Are you ready for your entire core to be on fire? In the next 15 minutes, we will do 500 reps of my favorite ab exercises. We will be targeting the entire core: Upper abs, lower abs, and obliques ...