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Back to Normal Symmetry? Biomechanical Variables Remain More Asymmetrical Than Normal During Jump and Change-of-Direction Testing 9 Months After Anterior Cruciate Ligament Reconstruction
被引:74
作者:
King, Enda
[1
,2
,3
]
Richter, Chris
[1
,2
]
Franklyn-Miller, Andy
[1
,2
,4
]
Wadey, Ross
[1
,5
]
Moran, Ray
[1
,2
]
Strike, Siobhan
[1
,3
]
机构:
[1] Sports Surg Clin Santry Demesne, Dublin, Ireland
[2] Sports Surg Clin, Sports Med Res Dept, Dublin 9, Ireland
[3] Roehampton Univ, Dept Life Sci, London, England
[4] Univ Melbourne, Ctr Hlth Exercise & Sports Med, Melbourne, Vic, Australia
[5] St Marys Univ, Sch Sport Hlth & Appl Sci, Twickenham, England
关键词:
anterior cruciate ligament;
return to play;
biomechanics;
asymmetry;
PRIMARY ACL RECONSTRUCTION;
STRENGTH ASYMMETRY;
QUADRICEPS STRENGTH;
FUNCTIONAL DEFICITS;
LANDING MECHANICS;
MUSCLE FUNCTION;
RETURN;
SPORT;
INJURY;
TIME;
D O I:
10.1177/0363546519830656
中图分类号:
R826.8 [整形外科学];
R782.2 [口腔颌面部整形外科学];
R726.2 [小儿整形外科学];
R62 [整形外科学(修复外科学)];
学科分类号:
摘要:
Background: After anterior cruciate ligament reconstruction (ACLR), athletes have demonstrated performance asymmetries as compared with healthy cohorts, but little research has investigated if biomechanical asymmetries are also different during jump and change-of-direction (CoD) tasks between groups. Purpose: To identify if differences in magnitude of asymmetry of biomechanical and performance variables exist between these groups. Study Design: Controlled laboratory study. Methods: Analysis was conducted between 156 male patients 9 months after surgery and 62 healthy participants. Threedimensional motion capture and analysis were carried out on a double-legged drop jump, a single-legged drop jump, a single-legged hop for distance, and planned and unplanned CoD. Asymmetry between limbs was calculated for each variable with root mean square difference between limbs. Statistical parametric mapping was used to identify the between-group differences in magnitude of asymmetry of performance and biomechanical variables. Results: There were differences in asymmetry of biomechanical variables across all jump and CoD tests, with greater asymmetries in the ACLR group. The majority of differences between groups were in the sagittal and frontal planes, with more differences found in the jump than CoD tests. The single-legged drop jump demonstrated large differences in performance asymmetry (effect size, 0.94) with small differences for both CoD tests (0.4) and none for the single-legged hop for distance. Conclusion: This study demonstrated greater asymmetry of biomechanical variables 9 months after ACLR as compared with healthy participants across all tests, suggesting insufficient rehabilitation. Clinical Relevance: This study highlights the importance of including biomechanical as well as performance variables when assessing rehabilitation status after ACLR. Registration: NCT02771548 (ClinicalTrials.gov identifier).
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页码:1175 / 1185
页数:11
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