Umshini wamandla wochungechunge lwe-F, i-F88 umshini owodwa wokuqina we-Dual station, okungukuthi ukuqeqesha i-Chest & Shoulder Press emshinini owodwa ofanayo. Izibambo ezinezimo ezimbili zengeza ekunethezekeni kozivivinya umzimba kanye nezinhlobonhlobo zokujima.Lokhu kukhuthaza ukubuthwa kwemisipha eyengeziwe kanye nokuzivocavoca okuhlukahlukene kuyilapho kuqeqeshwa imisipha ehilelekile ekunyakazeni okuphusha komzimba okuphezulu, okuhlanganisa imisipha ye-pectoral kanye ne-triceps.