Waya wachitetezo chamunthu ndi njira yodzitchinjiriza yoteteza ogwira ntchito kuti asadabwe ndi magetsi onyeketsa akamagwira ntchito pazingwe zodulira magetsi, komanso kupewa kulowerera kwamagetsi mwangozi pogwira ntchito pamaneti ogawa magetsi, kuti ateteze chitetezo cha ogwira ntchito.Waya wokhazikika wachitetezo chamunthu ndi woyenera nyengo yamkati kapena yakunja yamvula, ndipo ndi yoyenera milingo yosiyanasiyana yamagetsi, koma waya wokhazikika wachitetezo chamunthu sayenera m'malo oyendera magetsi.