Table 5.

Correlations Between stiffness and Pro-Kin balance test results when open eyes.

	DF stiffness	P	PF stiffness	P
MAS	0.265	0.041*	−0.133	0.317
Ellipse Area	0.262	0.102	−0.285	0.074
Trajectory Length	0.464	0.464	−0.308	0.053
F/B SD	0.155	0.339	−0.228	0.157
M/L SD	0.313	0.049*	−0.277	0.084
F/B AS	0.386	0.014*	−0.206	0.202
M/L AS	0.466	0.002**	−0.264	0.100

Spearman's coefficient (γ) was used to estimate the correlation between stiffness (K) and the Pro-Kin system results, and the Kendall rank correlation coefficient (τ) was used to estimate the correlation between stiffness (K) and MAS. Values are γ or τ.

^*P < 0.05,

^**P < 0.01.