Try and put crunches into a quick HIIT with what you're already doing. Like, every set of whatever you're doing, curls/press/etc., Do a minute of crunches immediately without pausing. Then do your rest if that's what you do. I do that or v-sitting flutter kicks (which I feel like I get a better work out with). It goes by quick, you get great volume of reps, and it's not something you have to dread as a separate set, or motivate yourself to do
__________________
Fuhuo
 |