Of course we know that soreness not pain is a sign of muscles rebuilding (correct me if I'm wrong). I was doing an AB exercise that was almost tuff to finish, I loved it and made it my routine. Since I can't post links yet I won't be able to provide the specific link. Anyway, a week or 2 into this specific exercise I no longer get the burning or soreness. This exercise consisted of a culmination of 21 different crunches. Essentially you would be doing a total of 200 reps total of crunches with in 7 minutes. Could it be that my Abs adapted quickly? Before starting this I used to kill my abs on crunches, incline sit ups using 4 different levels, etc.. It's getting a little frustrating, My diet is working very good and my supplements are showing results. I just want to know why I don't get the burn and how can I get it. I tried all new stuff last night and thought it was a delayed onset muscle soreness issue but NOTHING. I went to the Gym with my buddy we added a lot of weights to the Ab machine and crunched till he quit. Then I continued to crunch while we talked. I thought I would be sore for sure the next day and NOTHING.
Use this as a search criteria and choose the Kid with the Khaki shorts on, it'll give you an idea of the routine.
Ab Workout ( 6 pack abs ) [ ab exercises for ripped abs ]
I need help in figuring this one out.