Umatshini wamandla ochungechunge lwe-F, i-F90 ngumatshini omnye we-Dual station fitness, oko kukuthi ukuqeqesha i-Prone Leg Curl kunye noLwandiso lomlenze kumatshini omnye.uyilwe ngokufanelekileyo, kulula ukuyilungisa i-ankle pad kunye ne-shin pad ukusuka kwindawo ehleliyo. Idizayini ye-shin engaphantsi kwedolo iququzelela ifom ye-curl yomlenze efanelekileyo. Abalolongi banokubandakanya ngokulula ubunzima bokongeza kunye ne-push elula ye-lever ukunyusa umthwalo womsebenzi.