Ab overuse?
okay, so I've been doing a lot of work on my abs these days for climbing, and was wondering if it is possible to somehow create an undesireable situation by overstrengthening abdominals in relation to another muscle group (back muscles?) thus creating an imbalance of sorts. Just want to make sure I'm not doing myself harm, I really know very little about this subject. Anyway I would like to know if this will become a problem, and if so, what additional excercises can I do to balance it out. currently for abs I just do crunches, and this other one, don't know what its called, basically, dead hang from a pullup bar and curl legs in and up above head without bending the arms.
Thanks in advance for any help
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