. 2018 Jan 5;20(1):30. doi: 10.3390/e20010030

Table 2.

Pearson’s correlation coefficients r_corr between the variables relative sway (rSTD) and SaEn of the PP_k (relative standard deviation and sample entropy of principal positions) and COP_AP/ML-SaEn (sample entropy of the center of pressure in AP and ML direction). SaEns were computed with parameters embedded dimension m = 2, tolerance r = 0.2·STD and time-lag τ = 30 = 100 ms.

	rSTD₁		rSTD₂		rSTD₃		SaEn (PP₁)		SaEn (PP₂)		SaEn (PP₃)
	p	r_corr	p	r_corr	p	r_corr	p	r_corr	p	r_corr	p	r_corr
COP_AP-SaEn	0.002	−0.633	0.705	0.088	0.261	0.257	<0.001	0.717	0.390	0.198	0.887	0.033
COP_ML-SaEn	0.150	0.326	<0.001	−0.753	0.565	0.133	0.384	0.200	<0.001	0.893	0.730	0.080