Some of the best exercises are only a minute or two but are the most grueling. They will make you sweat, shake, and possibly collapse at the end, but they will tone you up, build muscle, and whip you ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." This 20-minute abs workout is part of the Women's Health 30-Day Workout Challenge. For this part of the ...

You don't need to do thousands of sit-ups or spend hours in the gym to build abs. You can instead do the bare minimum of two to three ab-focused exercises for 20 to 30 minutes a week. Exercises like ...

The star demonstrated how to perform the moves, which included plank variations and bicycle crunches. If you’ve ever wondered how fitness star Denise Austin maintains her toned abs, you’re in luck.

When it comes to core work, your abdominals should be engaged no matter what body part you are focusing on. That way, your body is ready for anything since your strength comes outward from the middle.

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? I'll admit, I sometimes sigh when an instructor cues up a plank. I know, they ...