Mapangidwe asayansi amabweretsa dongosolo loyenera, losavuta komanso mowolowa manja ku unit pomwe machubu amakona amakona omwe amagwiritsidwa ntchito pa chimango amalumikizidwa bwino ndikusonkhanitsidwa kuti abweretse chitetezo ndi kukhazikika. Njira yoyendetsera kayendetsedwe kamene ikugwirizana ndi mfundo ya ergonomics ndi zingwe zachitsulo zomwe zimagawidwa mwasayansi zimabweretsa chitonthozo chambiri komanso chitetezo.
Nsalu imateteza bwino ogwiritsa ntchito ku mbale zolemetsa ndipo imapangitsanso chitetezo. Ma bere apamwamba omwe amagwiritsidwa ntchito polumikizana amabweretsa kuyenda kosavuta. Zogwira zamanja zopangidwa momveka bwino zokhala ndi chitonthozo chapamwamba zimapangitsa kukhala kosavuta kwa ogwiritsa ntchito kuyesetsa ndikubweretsa mayendedwe osalala.