Plus, which move is more effective for strong abs.

Core muscles wrap around the midsection like a girdle, forming a connecting link between the upper and lower body. They support, stabilize, and help move your spine, trunk, and pelvis, and most body ...

There’s been a lot of debate of late about whether sit-ups are good or bad for us. Some claim they’re key for strengthening ...

The classic sit-up is a workout staple. Whether you've become all too familiar with the movement in your weekend HIIT class or eked out those last few reps while following a home workout video, you've ...

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. It’s kind of strange, ...

Credit: I’ve been practicing Pilates for the past decade and credit it with keeping me injury-free as I’ve trained for six ...

One Newton, Iowa, man liked doing sit-ups so much, he decided to break a world record. In 1985, Kenny Kirk, 24, did 31,111 sit-ups in just over 21 hours, beating the old record by more than 1,000. His ...