The Abdominal Crunch imagwiritsa ntchito minofu yapakati yam'mimba.Gwirani zogwirira ntchito ndikugwedezani pokokera zigongono ku mawondo anu.Minofu yomwe ili m'mbali mwa m'mimba mwanu imatha kugwira ntchito ngati mpando wapotoka.Makina a Crunch nthawi zambiri amagwiritsa ntchito kukana kowonjezera ngati ma stacks olemera omwe amasankhidwa kapena kukweza mbale, ndipo nthawi zambiri amachitidwa mozama mpaka kubwereza, monga 8-12 reps pa seti kapena kupitilira apo, monga gawo la gawo lokhazikika la masewera olimbitsa thupi.