... function(Patent No.is ZL2005202297596.8)with auotomatic control system. It owns three modes: shortcut PARAMETER MODE,AUTO SPEED MODE, ... current time,height,step numbers,speed,heart rate and calories. It is effective for body-builing, equipped with climbing speed ... helpful for those with lower limbs, disability in the period of recovery. Using it in a scheduled way,Iit can improve the cardiorespiratory ...