I-Ladder luhlobo lwemishini yangaphandle yokuqina komzimba, evame ukuvela ezikoleni, emapaki, ezindaweni zokuhlala, njll; Ukuhlukaniswa okujwayelekile kufaka phakathi i-zigzag ladder, i-C-hlobo ye-ladder, i-S-type ladder kanye ne-hand ekhuphukayo. Abantu abanjengoluhlobo lwemishini yangaphandle yokuqina komzimba, hhayi kuphela ngenxa yokwakheka kwayo okuyingqayizivele, kodwa futhi futhi ngenxa yomphumela wayo wokuqina wokuqina. Akunandaba noma ngabe i-switch iyini, isitebhisi singasebenzisa amandla emisipha yamalunga aphezulu futhi athuthukise amandla okubamba ezandleni zombili. Ngaphezu kwalokho, uma le mishini ivame ukusetshenziswa, isihlaka, i-elbow, ihlombe namanye amalunga nakho kungashintsha. Ngaphezu kwalokho, imiklamo ehlukene yesitebhisi nayo ingathuthukisa ukuxhumana komzimba womuntu. Umphakathi jikelele ungasebenzisa isitebhisi ukuze uhlale ulungile.
Ukusetshenziswa kwamashubhu esikwele kwenza izinsimbi ziqine kakhulu, zinhle futhi zihlala isikhathi eside, futhi zingamelana nesisindo esikhulu.
Umsebenzi:
1. Khulisa ukujikeleza kwegazi komzimba futhi kuthuthukise imetabolism;
2. Thuthukisa amandla emilenze ephezulu kanye nokuguquguquka kwesinqe nesisu, uthuthukise umthamo wokuthwala amalunga amahlombe, futhi uphinde ulinganise ukulinganisela nokuxhumana.
I-3. Inqubo yokufafaza nge-electrostatic yamukelwa ngopende wokubhaka.
I-4. Ukukhetha kweCushion kanye neSheffelani Imibala imahhala, futhi ungakhetha imibala ehlukene.