A fitness trainer shared how many crunches people should be able to do according to their age. Here's what to know about the ...

Crunches are great for strengthening and toning your core muscles, specifically the rectus abdominis (AKA your six-pack) and ...

The reverse crunch is a simple core exercise that targets those hard-to-hit lower abs — without straining your neck and back.

No matter which variations you follow, crunches have the advantage over sit-ups of being able to better target abdominal muscles. "Because the movement is smaller, you can control momentum more," ...

Rest your knees on a rolled up mat or towel if they feel uncomfortable on the floor. Keep hands on the chest or by the temples but not clasped behind the head to avoid injury to the neck by over ...

Don’t push to touch the knee, just move towards it. Come back down and crunch up towards your opposite knee. Lifted legs crunch Keeping the legs glued together, lift them into the air and crunch ...

Sit-ups A sit-up is an abdominal exercise that ... more susceptible to back injury or pain. How to do a crunch Lie on your back with your knees bent and feet flat on the floor.