Umatshini wokuphakamisa i-glute ham udibanisa ukusebenza okuzinzileyo kunye nozinzo kunye nohlengahlengiso olugudileyo, oluchanekileyo kunye nokuphatheka okulula. Lo matshini mncinci sisixhobo esibanzi sokuqinisa umgca ophakathi kunye nokuqinisa imisipha ye-hamstrings kunye ne-glutes—konke ngendlela enokutshintshelwa kwimidlalo yomdlali.
Kunye nokuqinisa izihlunu ngaphakathi kwikhonkco elingasemva, uqeqesho lwe-GHD luvumela enye yezona ndlela zikhuselekileyo zokuqeqesha ii-spinal erectors zakho. I-GHD sit-ups ikwakhokelela kwenye yezona zinto zinamandla kakhulu zokusikwa kwesisu kuyo nayiphi na intshukumo ejimini. Ukuzinza komgca ophakathi kusebenza njengebhanti yobunzima obungaphakathi ekhusela umqolo kwaye iphucule ukusebenza kwezemidlalo. Ubungakanani bokuhlanganisa: 1640 * 810 * 1060 mm, ubunzima obupheleleyo: 84 kg. Ityhubhu yentsimbi: 50 * 100 * 3 mm