Association between 90o push-up and cardiorespiratory fitness: cross-sectional evidence of push-up as a tractable tool for physical fitness surveillance in youth

Table 3 Age-, sex-, and weight status-unadjusted models for the associations between measures of musculoskeletal and cardiorespiratory fitness (dependent variable: PACER test score)

Model	Predictor variable	VIF	p - value	β	95% CI
Model 1	Trunk lift	1.065	.296	−.064	(−.336, .103)
	90^o push-up**	1.389	<.001	.451	(.215, .402)
	Curl-up*	1.331	.039	.139	(.003, .110)
	Sit-and-reach	1.136	.647	.029	(−.143, .233)
Model 2	90^o push-up**	1.000	<.001	.527	(.281, .440)

* Indicates statistical significance at the level of p < .05. ** Indicates statistical significance at the level of p < .01. β Standardized Beta Coefficient, VIF Variance Inflation Factor

ISSN: 1471-2431