abdominal lockup
wondering if anyone expericenes this and how they go about training abs if they do. My brother asked me and i didnt know what the answer was. he says everytime he starts training abs in the first set his entire abdominal wall locks up and cramps and he cant do them. what would this be caused from??
keep in mind he has a good normal diet, not on juice and not pulling water out. only happens with abs no other muscles.
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