Biggest mistake people make is using the Hip Flexers and not there abbs in any abb work. 90% of your Be Bop cross trainers train people to use there H-F and call it abb crunches. If your shoulders are not rolling forward toward your hips. or your hips up to your shoulders, its Hip Flexer work NOT your abbs doing the work. Yes they will tighten to lock your core but thats it.
Hanging leg raises untill you pull your hips up toward your shoulders its all Hip Flexer work.
OK done ranting. Just I seen it again today at the gym. I wish I had there trainers pay to be a dumb @ss.
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