Isitulo seshawa sinokwahlulwa sibe ziinguqulelo ezininzi ngokwesithuba seshawa, umsebenzisi, kunye nokukhetha komsebenzisi. Kweli nqaku, siza kudwelisa iinguqulelo ezenzelwe abantu abadala ngokwezinga lokukhubazeka.
Okokuqala kukho izitulo zeshawa eziqhelekileyo ezine-backrest okanye i-non-backrest ezinazo iincam ezingatyibilikiyo kunye nomsebenzi ohlengahlengiswayo wokuphakama ofanelekileyo kubantu abadala abanokuphakama bahlale bodwa. Izitulo zeshawa ezine-backrests ziyakwazi ukuxhasa umzimba wabantu abadala, zenzelwe abantu abadala abangakwaziyo ukunyamezela izihlunu kwaye banobunzima bokubamba umzimba ixesha elide, kodwa basakwazi ukuphakama bahlale bodwa. Ngaphandle koko, ikwafanelekile nakubafazi abakhulelweyo abafuna ukuxhasa umzimba wabo.