Sit-ups tighten and tone the abdominal muscles that run from beneath the sternum to above the pelvis. This results in a flatter stomach and, if practised along with plenty of aerobic exercise ...

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.

For the oldest age Topend Sports lists (65+), men should be able to do an average of 15 to 18 sit ups at a time, while for women, it drops to between 11 and 13. To perform a correct sit-up ...

Sit-up to crunch to plank, back to sit-ups, and so on. While these exercises are effective for engaging your core muscles, ...

I don't have any real issue with sit-ups, but my tailbone isn't a fan. The good news is you don’t need to do sit-ups to build a strong core. If you're like me and can take or leave sit-ups ...