Kapangidwe ka sayansi kamabweretsa kapangidwe koyenera, kosavuta komanso kokongola ku chipangizocho pomwe machubu abwino amakona anayi omwe amagwiritsidwa ntchito popanga chimango amalumikizidwa bwino ndikusonkhanitsidwa kuti apereke chitetezo komanso kulimba. Njira yoyendetsera zinthu mogwirizana ndi mfundo ya ergonomics ndi zingwe zachitsulo zabwino kwambiri zomwe zimafalitsidwa mwasayansi zimabweretsa chitonthozo ndi chitetezo chapamwamba.
Chophimba chimateteza bwino ogwiritsa ntchito ku zolemera ndipo chimawonjezera chitetezo cha ogwiritsa ntchito. Ma bearing apamwamba omwe amagwiritsidwa ntchito polumikiza amabweretsa mayendedwe osalala. Manja opangidwa bwino okhala ndi mphamvu zambiri amathandiza ogwiritsa ntchito kupirira mosavuta kenako n’kubweretsa mayendedwe osalala.