Let's be real - it was TOUGH! I did a couple different challenges and think I only missed one day of one of the ab ones (when we were camping) [Full disclosure - I stopped the squat challenge a few day early due to a funky hamstring pain]. I can DEFINITELY tell my abs "feel" stronger, even if by looking at them you can't tell much of a difference (or at least I can't).
I have to be honest, once the planks started getting up over 2 minutes I had to break them into two shorter planks (for example, my first 3 minute plank was actually a 2 minute plank followed by about 10 seconds of rest and then finished with a 1 minute plank). I felt pretty disappointed in myself that I couldn't hold it for longer, but at least I wasn't throwing in the towel completely.
At first I wasn't sure I was going to continue with much core work after this month. Sure, I know it is something I "should" do, but it always seems to be easier to lay on the couch than struggle through a plank - #AmIRightOrAmIRight?! But I do think I am going to try and continue a bit.
I am hoping to try and do at least a 2 minute plank per day and 20-25 reps of the ab exercises I was doing. The squats and calf raises I will probably stop. I already do them in my strength training workouts once a week and I really don't want to aggravate my hammy again (cause "missing" a long run SUCKS!).
I guess I probably shouldn't have expected that after a month of some core work I would have walked away with a six pack, but, man, that would have been nice, wouldn't it have been? I know, I know, I should probably address my food a bit more and maybe give it a little longer, but it's tough to stick with something that you don't see the immediate results from - or maybe that's just my issue.
Did you join in on the challenge? If so, what have your results been?