The main difference between sit-ups and crunches is the range of motion involved in each exercise. Sit-ups require you to lift all the way up, while crunches require a slight lift off the ground.

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 ...

Abs is the shortened term for your abdominal or core muscles. The ab muscles are located in the trunk of your body under the chest and above your pelvis. Doing ab workouts can directly impact nearly ...

We’ve all done it. Stared down at our stomach, groaned, and dropped to the floor to bang out a set of sit-ups—hoping, maybe praying, that each crunch would somehow melt away belly fat. It’s ...

Stop straining your neck and back with outdated abdominal crunches. A leading Pilates expert reveals the single modification ...

Q: I have heard that doing sit-ups and crunches does not burn stomach fat and that they in fact build muscles underneath the fat, thus making your stomach look bigger. An exercise equipment salesman ...

The sit-up has dominated workout routines for decades, but fitness professionals increasingly question whether this familiar movement deserves its place in modern training programs. The issue isn’t ...

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 ...