So, in the name of curiosity (and core strength), I decided to try a workout created by Justin Gelband — a world-class ...

The Ultimate Ab-Building Workout Program Training for your core goals is about more than one muscle group. This plan will lead you to well-rounded gains.

What is Jennifer Lopez's ab workout - here's what happened when our fitness editor tried it for a week.

The workout also teaches you to move at different speeds, sometimes doing exercises very quickly and sometimes doing them super slowly. This keeps your abs (and other muscles) off-balance and is a ...

Trainer Luke Jones shares a six-minute ab workout that activates deep core muscles, improves posture, and leaves you feeling the burn long after you're done.

I love working out, and a good workout challenge is even better. When I had the opportunity to try model Alexis Ren's viral abs workout on Youtube, I was especially excited.

Alexis Ren's ab workout on Youtube has 55 million views, but is it legit? Here's what happened when I did it every day for 3 weeks and what trainers say.

Keen for a challenge, I tried to get a six pack in two months. Here's the plan I followed to and build abs in 8 weeks, plus diet and before and after photos ...

Use this 30-day abs challenge designed by a certified trainer to sculpt and strengthen your abs and back in four weeks using bodyweight movements.

For this 4-week abs challenge, you do one ab exercise to do each day, finishing with a 15-minute workout with all the moves on Sunday.

Crunches, teasers, planks, and body-weight squats are some of the best stomach exercises for stronger abs. A strong core improves balance and posture.