Crunch na Ciki yana motsa tsokoki na tsakiyar ciki. Ɗauki hannaye kuma ku murƙushe ta hanyar jawo gwiwar gwiwar ku zuwa gwiwoyinku. Za a iya yin aiki da tsokoki a gefen ciki idan wurin ya karkace. Na'urorin crunch yawanci suna amfani da ƙarin juriya ta nau'in ɗimbin ɗimbin nauyi ko ɗora faranti, kuma galibi ana yin su don matsakaita zuwa manyan reps, kamar 8-12 reps a kowane saiti ko sama, a matsayin ɓangaren ab-mai da hankali na motsa jiki.