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Aberrant gait biomechanics following anterior cruciate ligament reconstruction (ACLR) likely contribute to post-traumatic osteoarthritis (PTOA) development. Gait biomechanics are typically assessed overground, but the use of instrumented/force-measuring treadmills is increasingly common. The purpose of this study was to compare gait biomechanics overground and on an instrumented treadmill in individuals with ACLR and healthy controls. Twenty-four individuals with ACLR and 24 healthy controls completed overground and gait biomechanics assessments. Biomechanical outcomes included peak vertical ground reaction force (vGRF), internal knee extension (KEM) and abduction (KAM) moments, and knee flexion (KFA) and adduction angles; KFA at heel strike; knee flexion displacement; and inter-limb symmetry for each outcome. Peak KEM (P < 0.001, 95%CI [-0.016, -0.007 xBW*Ht]) and vGRF (P < 0.001, 95%CI [-0.09. -0.03 xBW]) were significantly less symmetrical in the ACLR group compared to the control group on the treadmill but not overground. Additionally, peak KEM was smaller in the ACLR limb compared to the contralateral limb both overground (P = 0.005, 95%CI [-0.010, -0.001 xBW*Ht]) and on the treadmill (P < 0.001, 95%CI [-0.015, -0.007 xBW*Ht]), but this difference was 1.8x larger on the treadmill compared to overground. Peak KFA (P = 0.001, 95%CI [-4.2, -1.2°]) and vGRF (P < 0.001, 95%CI [-0.07, -0.03 xBW]) were smaller in the ACLR limb on the treadmill but not overground. These findings suggest aberrant gait biomechanics are exacerbated during treadmill walking post-ACLR and that evaluating kinematics and kinetics on instrumented treadmills may be valuable for assessing risk factors of PTOA development.

Titel:	Aberrant gait biomechanics in individuals with ACL reconstruction are magnified during treadmill walking.
Autor/in / Beteiligte Person:	Dewig, DR ; Mills, HR ; Evans-Pickett, A ; Pietrosimone, BG ; Troy Blackburn, J
Zeitschrift:	Journal of biomechanics, Jg. 134 (2022-03-01), S. 110989
Veröffentlichung:	New York ; Oxford : Elsevier Science, 2022
Medientyp:	academicJournal
ISSN:	1873-2380 (electronic)
DOI:	10.1016/j.jbiomech.2022.110989
Schlagwort:	Biomechanical Phenomena Gait Humans Knee Joint surgery Walking Anterior Cruciate Ligament Injuries surgery Anterior Cruciate Ligament Reconstruction
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article; Research Support, N.I.H., Extramural Language: English [J Biomech] 2022 Mar; Vol. 134, pp. 110989. <i>Date of Electronic Publication: </i>2022 Feb 05. MeSH Terms: Anterior Cruciate Ligament Injuries* / surgery ; Anterior Cruciate Ligament Reconstruction* ; Biomechanical Phenomena ; Gait ; Humans ; Knee Joint / surgery ; Walking References: Am J Sports Med. 2013 Jun;41(6):1310-8. (PMID: 23562809) ; J Appl Physiol (1985). 2008 Mar;104(3):747-55. (PMID: 18048582) ; Am J Sports Med. 2016 Jan;44(1):143-51. (PMID: 26493337) ; Am J Sports Med. 2006 Sep;34(9):1512-32. (PMID: 16905673) ; J Orthop Res. 2017 Oct;35(10):2288-2297. (PMID: 28150869) ; Gait Posture. 2018 Feb;60:104-110. (PMID: 29175639) ; Gait Posture. 2012 May;36(1):56-60. (PMID: 22310303) ; J Orthop Res. 2022 Jan;40(1):219-230. (PMID: 34101887) ; Clin Biomech (Bristol, Avon). 2018 Aug;57:150-158. (PMID: 28811046) ; Med Sci Sports Exerc. 2019 Apr;51(4):630-639. (PMID: 30444797) ; J Orthop Res. 2017 Mar;35(3):625-633. (PMID: 27082166) ; Med Sci Sports Exerc. 2018 Nov;50(11):2209-2216. (PMID: 29933346) ; Int Orthop. 2015 Jun;39(6):1187-93. (PMID: 25549917) ; Clin Biomech (Bristol, Avon). 2018 Mar;53:79-85. (PMID: 29471191) ; J Athl Train. 2017 Sep;52(9):847-860. (PMID: 28985125) ; J Athl Train. 2014 Nov-Dec;49(6):806-19. (PMID: 25232663) ; Clin Biomech (Bristol, Avon). 2014 Feb;29(2):138-42. (PMID: 24359628) ; Br J Sports Med. 2009 May;43(5):366-70. (PMID: 19042923) ; J Biomech. 2019 Jan 3;82:103-108. (PMID: 30385002) ; J Orthop Res. 2021 May;39(5):1113-1122. (PMID: 32757272) ; Eur J Appl Physiol. 2017 Sep;117(9):1833-1843. (PMID: 28687953) ; J Athl Train. 2017 Jun 2;52(6):507-517. (PMID: 25562459) ; Clin Biomech (Bristol, Avon). 2010 May;25(4):277-83. (PMID: 20097459) ; Clin Biomech (Bristol, Avon). 2021 Apr;84:105345. (PMID: 33848702) ; Sports Med. 2016 Dec;46(12):1869-1895. (PMID: 26936269) ; Am J Sports Med. 2016 Jun;44(6):1502-7. (PMID: 26920430) ; Med Sci Sports Exerc. 2019 Feb;51(2):246-254. (PMID: 30157111) ; Clin Biomech (Bristol, Avon). 2002 Jan;17(1):56-63. (PMID: 11779647) ; BMJ Open. 2014 Jun 04;4(6):e004753. (PMID: 24898088) ; Am J Sports Med. 2016 Feb;44(2):425-32. (PMID: 26684662) ; Gait Posture. 2010 Jun;32(2):169-75. (PMID: 20591671) ; Br J Sports Med. 2016 May;50(10):597-612. (PMID: 26265562) ; Clin Biomech (Bristol, Avon). 1998 Sep;13(6):434-440. (PMID: 11415818) Grant Information: R21 AR074094 United States AR NIAMS NIH HHS Contributed Indexing: Keywords: Biomechanics; Gait; PTOA; Treadmill Entry Date(s): Date Created: 20220213 Date Completed: 20220405 Latest Revision: 20230302 Update Code: 20240513 PubMed Central ID: PMC8976749

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Aberrant gait biomechanics in individuals with ACL reconstruction are magnified during treadmill walking.