Tibiofemoral Contact Forces in the Anterior Cruciate Ligament–Reconstructed Knee
| Autor: | David Lloyd, Christopher J. Vertullo, Julian A. Feller, Pauline Gerus, Kim L Bennell, Tim V. Wrigley, Jason M. Konrath, Bryce A. Killen, Flavia M. Cicuttini, Karine Fortin, Luca Modenese, Price Gallie, David J. Saxby, Adam L. Bryant, Tim Whitehead |
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| Přispěvatelé: | INSIGNEO Institute for in Silico Medicine, University of Sheffield [Sheffield], Laboratoire Motricité Humaine Expertise Sport Santé (LAMHESS), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université de Toulon (UTLN)-Université Côte d'Azur (UCA) |
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male musculoskeletal diseases Knee Joint Anterior cruciate ligament reconstruction Anterior cruciate ligament medicine.medical_treatment Physical Therapy Sports Therapy and Rehabilitation Walking Kinematics Electromyography Transplantation Autologous Running Contact force 03 medical and health sciences 0302 clinical medicine Gait (human) medicine Humans Orthopedics and Sports Medicine Muscle Skeletal Gait ComputingMilieux_MISCELLANEOUS Mathematics Orthodontics 030222 orthopedics Anterior Cruciate Ligament Reconstruction medicine.diagnostic_test [SPI.MECA.BIOM]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph] 030229 sport sciences Anatomy musculoskeletal system Biomechanical Phenomena 3. Good health Transplantation medicine.anatomical_structure Time and Motion Studies Female |
| Zdroj: | Medicine and Science in Sports and Exercise Medicine and Science in Sports and Exercise, American College of Sports Medicine (ACSM), 2016, 48 (11), pp.2195-2206. ⟨10.1249/MSS.0000000000001021⟩ |
| ISSN: | 0195-9131 1530-0315 |
| DOI: | 10.1249/mss.0000000000001021 |
| Popis: | AB Purpose: To investigate differences in anterior cruciate ligament-reconstructed (ACLR) and healthy individuals in terms of the magnitude of the tibiofemoral contact forces, as well as the relative muscle and external load contributions to those contact forces, during walking, running, and sidestepping gait tasks. Methods: A computational EMG-driven neuromusculoskeletal model was used to estimate the muscle and tibiofemoral contact forces in those with single-bundle combined semitendinosus and gracilis tendon autograft ACLR (n = 104, 29.7 +/- 6.5 yr, 78.1 +/- 14.4 kg) and healthy controls (n = 60, 27.5 +/- 5.4 yr, 67.8 +/- 14.0 kg) during walking (1.4 +/- 0.2 m[middle dot]s-1), running (4.5 +/- 0.5 m[middle dot]s-1) and sidestepping (3.7 +/- 0.6 m[middle dot]s-1). Within the computational model, the semitendinosus of ACLR participants was adjusted to account for literature reported strength deficits and morphological changes subsequent to autograft harvesting. Results: ACLR had smaller maximum total and medial tibiofemoral contact forces (~80% of control values, scaled to bodyweight) during the different gait tasks. Compared with controls, ACLR were found to have a smaller maximum knee flexion moment, which explained the smaller tibiofemoral contact forces. Similarly, compared with controls, ACLR had both a smaller maximum knee flexion angle and knee flexion excursion during running and sidestepping, which may have concentrated the articular contact forces to smaller areas within the tibiofemoral joint. Mean relative muscle and external load contributions to the tibiofemoral contact forces were not significantly different between ACLR and controls. Conclusions: ACLR had lower bodyweight-scaled tibiofemoral contact forces during walking, running, and sidestepping, likely due to lower knee flexion moments and straighter knee during the different gait tasks. The relative contributions of muscles and external loads to the contact forces were equivalent between groups. (C) 2016 American College of Sports Medicine |
| Databáze: | OpenAIRE |
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