The starburst side plank variation strengthens the shoulders, abs and obliques. Here's why we love it at Tom's Guide.

For years, sit-ups were considered the ultimate ab exercise. But modern research shows they’re not the safest or most ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Bored of planks and crunches? Why not try mixing things up with a killer ab ...

Strengthening your lower abs might not be at the top of your priorities when building a stronger core. Maybe you’re focused on how core strength can improve other exercise areas, like weightlifting or ...

Core training has always been part of military PT and fitness testing. From crunches to sit-ups, flutter kicks, leg tucks and plank poses, the U.S. military uses many exercises to test core strength.

George Hood completed around 1,500 sit-ups per day to train for the feat. An Illinois man who spent the past several months training seven hours a day, including 1,500 sit-ups daily, has broken the ...

Build a lean, strong core with five bodyweight routines for power, balance, and endurance. No equipment. In 10 to 15 minutes.

If you have or have not tried the PT Pyramid, summer is a perfect time to learn this classic workout and take it to new levels. For decades, the Calisthenics Pyramid has been a staple in military ...

DonnaJean Wilde, 59, holds Guinness World Records for the longest plank and most push-ups by a woman. She can plank for 4.5 hours and do 1,575 push-ups in an hour. She shared tips on how to get and ...

Hello, it's me - back after trying a 5-minute abs workout for 31 days straight and ready for more. This time, I'm tackling a TikTok famous abs routine. ICYMI, I wasn’t big on abs exercises before that ...

Test your strength after 50 with a 60-second forearm plank that reveals exceptional core and full-body stability.