Hi, and welcome, guys. We're going to do a 10 minute ab exercise. Five exercises, one minute each, and do two rounds of that. So we're going to get started with a simple crunch. Lay on your back.

While classic core exercises like sit-ups, planks and crunches are undoubtedly effective, they’re not the only way to ...

If you cannot lie down on your back, you’re short on space, or you simply prefer standing workouts, this 15-minute ab workout blasts your core without a single sit-up.

This workout is short — just 10 minutes — and requires no equipment. But it packs in a lot of work. PS Fit instructor Natalie White designed it to target your abs, core, and thighs ...

However, you can stay standing and still get a quality core workout done, as this 10-minute dumbbell abs workout shows ... There are eight exercises in the workout and you do two sets of each ...