“…Of the various RTS tests described to assess safe RTS after ACLR, recent literature has identified some biomechanical variables associated with secondary ACL injury [89,100], with some literature suggesting RTS testing batteries should utilize a maximum of five variables/tests (e. g., strength/power, movement biomechanics, proprioception, kinesthesia, and balance) when synthesizing information regarding safe RTS after ACLR [101,102]. In a small prospective cohort study, Paterno et al [100] reported that during a drop vertical jump maneuver, biomechanical variables related to net hip rotation moment impulse, frontal plane knee range of motion during landing, asymmetries in sagittal plane knee moments at initial contact, and postural stability were collectively a strong predictor (i. e., sensitivity, 0.92; specificity, 0.88) of a contralateral or secondary ipsilateral ACL injury after primary ACLR.…”