David Kirsch may train celebrities like Jennifer Lopez, Britney Spears, and Heidi Klum, but thanks to the power of the Internet, we like to think he's our trainer, too. Kirsch regularly posts his ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images If you have 10 minutes to spare and a couple of dumbbells to hand, then this ...

Whether you're looking for HIIT, yoga, ab workouts, or cardio classes, our list of the best YouTube workouts will have you ...

If you’re looking for a quick core workout to get your abs popping this Monday morning, I’ve found it — my favorite Pilates instructor, Lilly Sabri, just shared this five-minute weighted core workout.

Building strength and stability in the comfort of your own home definitely has its perks. You don’t have to worry about waiting your turn for the exercise machines or free weights as you would at the ...

The session begins with an upper-body superset that targets the chest, shoulders, back and arms. It includes two exercises: ...

By targeting your ab muscles in an upright position, the workout becomes more functional as it relates to running.

Has your core routine gotten stale? I know mine has. While crunches, Russian Twists, and planks are effective, after doing them a bunch, they might get a little, well, boring. Not to mention, there ...

You have to engage your core constantly as you sit straight, stand tall, and walk confidently, which requires a lot of endurance in your midsection muscles. The best way to build ab endurance? A core ...

Feeling inspired by Livvy Dune’s abs, but don’t quite have the same amount of hours to spend in the gym as her? We’ve good news: you actually don’t need *that* much time to make a difference when it ...

No offense to sit-ups, planks, and hollow holds, but basic core exercises can feel drab day after day. They work the abdominals, but if you’re looking for stronger, sculpted abs, let me introduce you ...