Table 2.

Results of the studies and factors excluded from the meta-analysis

Study	Reason for exclusion of meta-analysis	Results
Smeets et al. 2019 [42]	Only study assessing knee abduction as a mean across the entire landing phase (kinematics) and not reporting sufficient statistics (kinetics)	No difference in 3D knee abduction angle or peak knee abduction moment during a double-leg vertical drop jump between those who sustained an ACL injury (n = 4) and controls (n = 35), p > 0.05)
Numata et al. 2017 [40]	Only study that reported peak MKD and MKD at initial contact	Those who sustained an ACL injury (n = 27) had greater baseline MKD at IC (mean (sd), 2.1 (2.4) vs 0.4 (2.2) (p = 0.006) and greater peak MKD, 8.3 (4.3) vs 5.1 (4.1) (p = 0.007) compared to controls (n = 27) during a single-leg drop landing