Hip and knee joint kinematics during a diagonal jump landing in anterior cruciate ligament reconstructed females

Hip and Knee Kinematics and Kinetics During Landing Tasks After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis

“…Surprisingly, we observed no conclusive effect for differences in any of the kinematic variables at the knee or hip during landing. The effect sizes associated with kinematic adaptations were mostly heterogeneous, demonstrating that the injured limbs of patients with ACLR may land with more (2/12 included studies), 46,66 less (3/12 included studies), 51,52,64 or no difference (7/12 included studies) 50,56,[58][59][60][61]67 in knee flexion compared with uninjured limbs and healthy controls (Table 2A). Peak kneeadduction angle and frontal-plane knee-joint excursion yielded the strongest evidence for kinematic alterations at the knee, with lower knee-adduction angles (3/3 included studies; Table 2B) in the involved limb compared with healthy controls during double-legged landing.…”

“…Of note, however, only 2 groups 50,55 reported hip-extension moments. Multiple large or homogeneous (or both) effects were noted for increased peak hip adduction and frontal-plane hip-joint excursion (3/5 included studies) 51,55,67 and increased transverse-plane hip-joint excursion compared with contralateral healthy limbs (1/1 included studies) 67 and healthy matched controls (4/4 included studies), with varying levels of methodologic quality among the included studies (Table 1B and C). 51,52,60,67 Our findings are clinically concerning given that excessive adduction 14 and internal rotation of the hip [14][15][16] have been shown to increase the risk of primary and secondary ACL injury during a double-limb landing.…”

Dynamic Postural-Stability Deficits After Cryotherapy to the Ankle Joint

“…This specific analysis technique has been used in our laboratory. [30][31][32][33][34]44,45 Effect sizes were not calculated for this part of the data analysis due to the number of separate comparisons for each kinematic variable. The a level was set at .05.…”

Anterior cruciate ligament injury about 20 years post‐treatment: A kinematic analysis of one‐leg hop

“…Long‐term kinematic consequences are much less investigated and so far with contradictory results. Less knee flexion and increased knee abduction in the injured knee 4.4 years post‐injury were reported (Delahunt et al., ), while other studies show no differences in kinematics in comparison to the noninjured leg or to controls after 7–16 years (von Porat et al., ; Ortiz et al., ). Conflicting results may be explained by the fact that studies have investigated different functional tests and not always included the same variables.…”