来自MSN2 年
Are crunches a pain in the neck? Try this ab exercise instead
I recommend trying reverse crunches instead. Unlike regular crunches, which require lifting the upper body off the ground, reverse crunches involve lifting the hips and legs toward the chest.
Business Insider2 年
The major differences between sit-ups and crunches — and which one is best for you
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.