Workers’ physical activity data contribute to estimating maximal oxygen consumption: a questionnaire study to concurrently assess workers’ sedentary behavior and cardiorespiratory fitness

Table 4 Regression coefficients for prediction of VO_2max using selected independent values (n = 198)

	Intercept	Independent variables						Adjusted R²	SEE		Cross-validation
		Age	Sex	BMI	WG	%fat	PA score		SEE		R₂p	SEEp
		yrs	women:0men:1		cm	%	points		ml·kg⁻¹·min⁻¹	%	R₂p	ml·kg⁻¹·min⁻¹
BMI model	63.90	−0.25	8.02	−0.79	–	–	–	0.43	5.04	13.1	0.42	5.08
BMI model	59.96	−0.23	7.39	−0.79	–	–	0.33	0.59	4.29	11.2	0.58	4.33
WG model	70.39	−0.22	8.82	–	−0.33	–	–	0.49	4.78	12.5	0.48	4.82
WG model	64.70	−0.21	8.02	–	−0.29	–	0.29	0.61	4.17	10.9	0.60	4.22
%fat model	62.45	−0.25	2.95	–	–	−0.54	–	0.51	4.69	12.2	0.49	4.74
%fat model	57.50	−0.24	2.83	–	–	−0.48	0.28	0.62	4.13	10.8	0.61	4.18

PA physical activity, R²p PRESS R², SEE standard error of estimate, SEE p PRESS SEE, VO_2max maximal oxygen consumption, WG waist girth; −, not included in the model

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