Cross-Validation of Met Prediction on the Nustep Total Body Recumbent Stepper

Development of a Metabolic Equation for the NuStep Recumbent Stepper in Older Adults

“…Mendelsohn, Connelly, Overend, and Petrella (2008) reported that exercise machine-generated MET values were indicative of directly measured oxygen consumption (VO 2 ) values, while earlier work by Rateike, Porcari, Paschke, Foster, Brice, and Fagan (2000) found that console MET values significantly over-predicted actual measured MET values by 30 to 70% across a wide range of workloads (25-250 watts). The later authors (Rateike, et al, 2000) then developed regression equations and subsequently cross-validated these in a companion study (Pascke, Porcari, Rateike, Foster, Brice, Donahue, et al, 2000) to better predict MET values; how-ever, the prediction equations themselves were not actually reported in either study. The increasing popularity of NuStep recumbent stepper exercise, inconsistent findings concerning the accuracy of the machine's reported MET values, and the absence of an accurate metabolic equation for NuStep recumbent stepper exercise were all factors that prompted this investigation.…”