Table 2

Single correlation between quadriceps setting and knee extension strength with individual test of the health-related physical fitness assessment

	Quadriceps setting strength				Knee extension strength
	r	95% CI		p	r	95% CI		p
	r	Lower	Upper	p	r	Lower	Upper	p
Grip strength	0.498	0.306	0.651	<0.001	0.769	0.657	0.848	<0.001
Sit-up	0.326	0.107	0.515	0.005	0.385	0.173	0.563	0.001
Sit and reach	0.238	0.012	0.441	0.041	−0.013	−0.239	0.215	0.910
One leg standing time with eyes open	0.289	0.066	0.484	0.013	0.196	−0.032	0.405	0.095
10 m obstacle walking time	−0.512	−0.662	−0.323	<0.001	−0.459	−0.621	−0.259	<0.001
6 min walking distance	0.510	0.320	0.661	<0.001	0.468	0.270	0.628	<0.001