Kukokera kumbuyo ndi ntchito yolemetsa yomwe imaphunzitsa ma lats. Kusunthaku kumachitika pamalo okhala ndipo kumafuna thandizo la makina, nthawi zambiri amakhala ndi discus, pulley, chingwe, ndi chogwirira. Kugwirana chanza kwakukulu, maphunzirowo adzayang'ana kwambiri pa lats; mosiyana, kuyandikira kwambiri kumagwira, maphunzirowo adzayang'ana pa biceps. Anthu ena amazoloŵera kuika manja awo kumbuyo kwa khosi pamene akugwetsa pansi, koma kafukufuku wambiri wasonyeza kuti izi zidzabweretsa kupanikizika kosafunikira pa chiberekero cha vertebral disc, chomwe chingayambitse kuvulala kwa rotator pazovuta kwambiri. Kaimidwe koyenera ndikokokera manja pachifuwa.