Sit-ups target your abdominal muscles, back muscles, and hip flexors, while crunches only target your abdominal muscles. • ...

Core strength testing has come a long way from the straight-legged, twisting sit-ups used before World War II. We've moved on to bent-knee sit-ups, to crunches and now to the plank pose or hanging ...

Core workouts can often feel like a slog, especially when the workout involves busting out endless sit-ups or crunches, which can quickly become repetitive and boring. However, this workout from Oner ...

Experts have revealed how many sit-ups you should ideally manage at your age — and the numbers may surprise you.

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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images While classic core exercises like sit-ups, planks and crunches are ...

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 ...

Chasing a flat stomach with endless sit-ups? Experts reveal that while sit-ups strengthen core muscles, they don't directly burn belly fat. Spot reduction is a myth; fat loss is systemic. A ...

Take everything you learned about the traditional sit-up and toss it out the window. Bob Harper, best known for his work on NBC’s “The Biggest Loser,” would like to introduce you to a new way of doing ...

People often fail or are overly taxed by the two-minute sit-up test that is required every six months in the military. Here is a question from an in-shape Navy petty officer who trains 5-6 days per ...

Forget sit-ups and push-ups. The best way to tell whether schoolchildren are physically fit is a common-sense test of body mass index, whether they can run without getting out of breath, and grip ...

The sit-up has been a staple exercise for as long as most people can remember, from health clubs to military physical fitness tests. But many experts say it can lead to back injuries. Photo: Getty For ...