Here's why crunches are so good for your overall health.

Sit-ups can be a great way to strengthen your abdominal muscles that sit around your stomach. But they can quickly get repetitive and its easy to accidentally lose your form, so when boredom strikes, ...

A great way to increase your confidence and performance on the road or trails is to improve your posture and balance. Incorporating ab roller exercises in your routine can help you do just that by ...

A strong core is about more than just six-pack bragging rights — it’s the foundation of your strength and overall well-being. But you don't need to torture yourself with endless crunches. Instead, ...

This is the one Pilates exercise every runner should focus on ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Do you want a strong ...

Abdomen muscles such as the rectus and transverse abdominus are hugely responsible for keeping the body stable when you perform any athletic activity, that includes swinging a golf club 90 miles per ...

Of all the physical indicators of workout success, a strong set of abs might be the most coveted. Of course, that’s not to say that if you don’t have visible abs, you don’t have a strong core (whether ...

Planks are one of those exercises that never seem to get easier no matter how often I do them, and I'm OK with that — I like a challenge! One of my favorite dynamic plank variations is the plank to ...