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 8 Age-, sex-, and weight status-adjusted model for the associations between measures of musculoskeletal fitness (dependent variable: 90^o push-up)

Model	Predictor variable	VIF	p - value	β	95% CI
Model 2	Trunk lift	1.140	.497	−.040	(−.415, .202)
	Curl-up**	1.205	<.001	.353	(.140, .281)
	Sit-and-reach**	1.222	<.001	.241	(.268, .801)
	Age	1.153	.899	.007	(−.545, .620)
	female**	1.126	<.001	−.232	(− 3.839, − 1.303)
	Weight status**	1.186	<.001	−.290	(− 2.477, − 1.046)

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

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