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 2 Bivariate correlations between measures of musculoskeletal and cardiorespiratory fitness, age, sex, and weight status

	Age	Female	Weight status	PACER	Trunk lift	90^o Push-up	Curl-up	Sit-and-reach
Age	1	−.134	−.034	.159*	.072	.085	.220**	−.162*
p-value		.052	.622	.021	.297	.222	.001	.019
Sex	−.134	1	−.021	−.084	.223**	−.082	.098	.287**
p-value	.052		.760	.226	.001	.236	.156	<.001
Weight status	−.034	−.021	1	−.426**	.169*	−.450**	−.298**	−.221**
p-value	.622	.760		<.001	.014	<.001	<.001	.001
PACER	.159*	−.094	−.426**	1	−.070	.527**	.347**	.181**
p-value	.021	.173	<.001		.313	<.001	<.001	.009
Trunk lift	.072	.215**	.169*	−.070	1	−.057	.099	.193**
p-value	.297	.002	.014	.313		.413	.154	.005
90^o Push-up	.085	−.131	−.450**	.527**	−.057	1	.463**	.301**
p-value	.222	.058	<.001	<.001	.413		<.001	<.001
Curl-up	.220*	.102	−.298**	.347**	.099	.463**	1	.203**
p-value	.001	.141	<.001	<.001	.154	<.001		.003
Sit-and-reach	.162*	.286**	−.221**	.181**	.193**	.301**	.203**	1
p-value	.019	<.001	.001	.009	.005	<.001	.003

Correlation coefficients between all continuous variables are Pearson’s r, and those involving weight status are Spearman’s rho. * Indicates statistical significance at the level of p < .05. ** Indicates statistical significance at the level of p < .01

ISSN: 1471-2431