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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.
Tom's Guide21d
Forget weights and sit-ups — this 10-minute standing ab workout will blast your core
As much as I love a good set of crunches and sit-ups, there are times when I’d prefer ... taking far too many photos of her puppy.