摘要：Esco MR, Mugu EM, Williford HN, McHugh AN, Bloomquist BE. Cross-Validation of the Polar Fitness TestTM via the Polar F11 Heart Rate Monitor in predicting VO2 Max. JEPonline 2011;14(5):31-37. The purpose of this study was to cross-validate the Polar Fitness TestTM via the Polar F11 heart rate (HR) monitor in predicting VO2 max in apparently healthy male volunteers. Fifty male subjects (age = 24.0 ± 5.1 yrs) volunteered to participate in the study. Each subject was instructed to assume a supine position for 10 min while the Polar F11 HR monitor predicted their VO2 max (pVO2 max) by way of the Polar Fitness Test. Criterion VO2 max (aVO2 max) was determined via a maximal graded exercise test on a treadmill. The mean values for pVO2 max and aVO2 max were 45.4 ± 11.3 mL . kg-1.min-1 and 47.4 ± 9.1 mL . kg-1.min-1 , respectively, which were not significantly different (p > 0.05). The validity statistics for pVO2 max versus aVO2 max were r = 0.54 (p < 0.05), CE = -1.93 mL . kg-1.min-1 , SEE = 7.69 mL . kg-1.min-1 , TE = 10.04 mL . kg-1.min-1 and limits of agreement ranged from -18.0 mL . kg-1.min-1 to 21.8 mL . kg-1.min-1 . Due to the moderate validation coefficient and large individual differences between the predicted and criterion VO2 max, the Polar Fitness TestTM is limited. Therefore, one should take caution when using this method to predict VO2 max.
