“…Thus, it is not surprising that, as BW Set is reduced within a given speed, _ VO 2 demand is decreased, and thus, HR and ventilation are also reduced. Kline et al [27] reported that the proportion of metabolic demand to BW Set was found to be near equivalent for 70-90 % BW Set ; however, at the extreme ends, the proportion of metabolic demand differed significantly from the proportion of BW Set . Thus, individuals training on an LBPPT with the goal of achieving a specific metabolic stimulus while unweighted may need to increase the treadmill speed or incline to achieve the desired overall metabolic stimulus, and it is even possible to achieve _ VO 2max at reduced BW Set .…”