
Originally Posted by
ahmeerah
Basically, a rollup is a functional movement. Crunches are not and encourage things like forward head posture in the long run. Rollups effectively use proper motor sequencing of the deep abdominal musculature. Crunches are short range and are kind of like just doing half bicep curls to train your biceps. Or have a pull up to train your back. Ultimately it encourages bad firing of nervous motor sequencing. Exercise is about training your bdy how to act or how to move and fire correctly. You don't want to train your body to be ineffective or half-assed. In the long run it's not pretty.
An example I'm sure you've seen is of someone wiht washboard abs but they're distended or they kind of hae a pooch or pot belly although they're really lean. This is either infalammatory foods or doing too many things like crunches.
Does that make sense?
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