In 2010, Borel et al., developed six-minute stepper test (6-MST) to solve problem of 6MWT and step test. This study reported that 6-MST used oxygen consumption (VO2) lower than 6MWT. They reasoned that during stepper test, subject move upper limb fewer than walking test. Similarly with Mayo et al., 2001, they found heart rate and expiratory minute ventilation (VE) response of arm performance higher than leg. Therefore, movement of the upper limbs may be increase VO2 peak during exercise test of COPD patient.