Moralo oa saense o tlisa sebopeho se loketseng, ponahalo e nolofalitsoeng le e mosa ho yuniti ha lipeipi tsa boleng bo khutlonnetsepa tse sebelisoang bakeng sa foreimi li kopantsoe hantle 'me li kopanngoa ho tlisa polokeho le ho tšoarella. Tsela ea motsamao e lumellanang le molao-motheo oa ergonomics le likhoele tsa tšepe tsa boleng bo holimo tse ajoang ka saense li tlisa matšeliso le polokeho e phahameng.
Shroud e sireletsa basebelisi ka ho phethahetseng ho lipoleiti tsa boima 'me e ntlafatsa polokeho ea tšebeliso. Li-bearing tse phahameng tse sebelisoang bakeng sa lihokelo li tlisa metsamao e boreleli. Li-hand grip tse entsoeng ka mokhoa o utloahalang tse nang le maemo a holimo a boiketlo li etsa hore ho be bonolo hore basebelisi ba ikitlaetse ebe ba tlisa metsamao e boreleli.