Quantitative analysis with load–displacement ratio measured via digital arthrometer in the diagnostic evaluation of chronic ankle instability: a cross-sectional study

Table 3 Load–displacement ratios (LDRs) of different intervals of the load–displacement curve

	Control (n = 160)		CAI (n = 153)		p value	Effect size
	LDR (mm/N)	R²	LDR (mm/N)	R²	p value	Effect size
LDR at 10–120 N	0.0777 ± 0.0176	0.954 ± 0.025	0.1068 ± 0.0215	0.926 ± 0.042	< 0.001	1.48
LDR at 10–40 N	0.1160 ± 0.0360	0.969 ± 0.025	0.1924 ± 0.0459	0.962 ± 0.031	< 0.001	1.85
LDR at 40–80 N	0.0735 ± 0.0211	0.984 ± 0.021	0.0978 ± 0.0280	0.971 ± 0.024	< 0.001	0.98
LDR at 80–120 N	0.0571 ± 0.0139	0.986 ± 0.010	0.0667 ± 0.0186	0.985 ± 0.009	< 0.001	0.58

CAI chronic ankle instability, LDR: Load–displacement ratio, SD standard deviation
Values are presented as mean \(\pm\) SD. LDRs are calculated by linear regression. The level of significance is set a priori at p < 0.05

ISSN: 1749-799X