. 2018 Feb;53(2):144–159. doi: 10.4085/1062-6050-334-16

Table 1C. .

Between-Groups Comparisons and Cohen d Effect Sizes of Transverse-Plane Hip-Joint Angles

Study	Task	ACL Reconstruction Sample Size	Comparison Group Sample Size	Mean ± SD			Landing Phase	Cohen d Effect Size (95% CI)	Weighted Effect Size
Study	Task	ACL Reconstruction Sample Size	Comparison Group Sample Size	ACL Reconstruction-Limb Hip Internal-Rotation Angle	ACL Contralateral-Limb Hip Internal-Rotation Angle	Healthy Hip Internal-Rotation Angle	Landing Phase	Cohen d Effect Size (95% CI)	Weighted Effect Size
Delahunt et al⁵¹ (2012)	Double-limb landing	13	16	0.5 ± 7.7	NA	−5.8 ± 5.5	Joint excursion	0.96 (0.19, 1.73)	3.90
Combined pooled effect size (95% CI)									NA
Ortiz et al⁶⁰ (2008)	Single	14	15	5.0 ± 5.0	NA	1.8 ± 2.1	Peak	0.82 (0.06, 1.57)	3.39
Webster et al⁶⁷ (2012)	Single	15	11	9.1 ± 10.6	NA	7.9 ± 10.4	Peak	0.11 (−0.67, 0.89)	0.45
Delahunt et al⁵¹ (2012)	Single	13	16	3.2 ± 8.1	NA	−1.1 ± 4.2	Joint excursion	0.75 (−0.01, 1.51)	3.12
Combined pooled effect size (95% CI)									0.56 (0.12, 1.00)
Webster et al⁶⁷ (2012)	Single	15	11	9.1 ± 10.6	2.0 ± 8.8	NA	Joint excursion	0.71 (−0.09, 1.50)	4.27
Combined pooled effect size (95% CI)									NA

Abbreviations: ACL, anterior cruciate ligament; CI, confidence interval; NA, not applicable; single, single-limb landing.