Table 2.

Comparison of SSD in the ACL injury group and the control group^a

Variable	SSD of the ACL injury group (mm)	SSD of control group (mm)	P value	95%CI	Effect size
80 N	2.7 ± 1.4	1.2 ± 1.1	0.000***	0.77–2.07	1.12
120 N	3.4 ± 2.2	1.7 ± 1.2	0.001**	0.74–2.59	0.93
150 N	3.8 ± 2.7	1.8 ± 1.3	0.001**	0.92–3.17	0.94

SSD side-to-side difference, ACL anterior cruciate ligament, CI confidence interval

^aValues are presented as mean ± standard deviation (SD); the level of significance was established a priori at P < 0.05

^***P < 0.001, **P < 0.01