Coefficients Standardized Unstandardized Coefficients Coefficients Model B Std. Error Beta Sig. 1 (Constant) 46.417 3.180 14.594 .000 Age -.216 .091 -.218 -2.379 .019 Gender 6.289 1.605 .359 3.917 000 2 (Constant) 69.679 4.552 15.308 .000 Age -.267 .077 -.270 -3.467 .001 Gender 9.626 1.454 .550 6.618 000 weight -.300 .047 -.529 -6.329 000 (Constant) 22.451 5.894 3.809 000 Age -.071 .059 -.071 -1.201 .233 Gender 2.952 1.251 .169 2.360 .020 weight -.074 041 -.130 -1.793 076 heart rate .194 .020 .711 9.616 .000 a. Dependent Variable: VO2maxExcluded Variables Collinearity Partial Statistics Model Beta In Sig. Correlation Tolerance 1 weight -.529 -6.329 .000 -.543 .855 heart rate .787 12.795 .000 .794 .827 2 heart rate 7110 9.616 000 .702 .559 a. Dependent Variable: VO2max b. Predictors in the Model: (Constant), Gender, Age c. Predictors in the Model: (Constant), Gender, Age, weight