Residual deficits of knee and hip joint coordination and clinical performance after return to sports in athletes with anterior cruciate ligament reconstruction

Table 2 Comparison of clinical parameters between the ACLr and control groups

Parameters	ACLr group (n = 8)					Control group (n = 8)					P-value
	Mean	SD	Median	95% CI		Mean	SD	Median	95% CI
	Mean	SD	Median	Lower	Upper	Mean	SD	Median	Lower	Upper
LESS score	2.42	1.31	2.33	1.32	3.51	2.46	1.30	2.50	1.37	3.54	0.95 ^a
Single-leg hop distance (cm)	158.10	16.21	156.17	144.55	171.66	178.38	7.82	178.5	171.84	184.91	0.02 ^b
Peak torque of knee extension (% body mass)	194.75	47.45	193.50	155.07	234.42	224.58	24.61	233.20	204.00	245.16	0.14 ^a
Peak torque of knee flexion (% body mass)	115.17	27.83	115.30	91.90	138.43	107.27	22.23	112.15	88.68	125.86	0.54 ^a
Knee H:Q ratio (%)	60.19	8.94	59.05	52.72	67.66	47.44	9.66	47.10	39.36	55.51	0.02 ^a
LSI of knee extension (%)	90.38	18.63	92.31	74.81	105.95	104.48	6.72	104.125	98.87	110.10	0.06 ^a
LSI of knee flexion (%)	105.45	8.48	104.38	98.36	112.53	104.99	18.53	111.13	89.50	120.49	0.46 ^b
LSI of single leg hop distance (%)	99.58	6.17	102.27	94.42	104.73	96.38	7.26	96.50	90.31	102.45	0.35 ^b

Bold values indicate statistically significant differences (p < 0.05) between ACLr and control groups
ACLr anterior cruciate ligament reconstruction, CI confidence interval, H:Q hamstring:quadriceps, LESS Landing Error Score System, LSI limb symmetry index, SD standard deviation
^aStatistical testing with independent t test
^bStatistical testing with Mann–Whitney U test

ISSN: 2234-2451