Whats the diff b/w crunches and sittups?!
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In crunches your legs move up toward your chest at the same time you raise your chest. In situps your legs stay still (feet on the floor). Most peole think that crunches are better for your lower back.
Other Answers:
there isnt one
crunches are better on your back. And a better ab workout I think.
sit-ups are 4 your abs
crunches uh..dunno
Crunches work your abs MUCH better, and are easier on your back.
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