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When you do a crunch is it better to flex your abs or relax and just do the motions?
- 1 decade agoFavorite Answer
When you crunch, try to suck your lower abs in towards your spine, and exhale when you crunch, inhaling when you relax back down.Source(s): Certified Personal Trainer
- 1 decade ago
I fyou're not flexing your abs, your not crunching. Unless your in training for a specific activity that requires development of a specific type of muscle fiber, it's Best to crunch up, hold and squeeze, then come down slow.
- lv_consultantLv 71 decade ago
you want to keep the abdominal muscles tensed or flexed during the entire range of motion for each repetition. quality reps beat quantity any day of the week..Source(s): BS Exercise Science IFPA Certified Master Trainer 20+ years of resistance training experience