Aberrant gait biomechanics in individuals with ACL reconstruction are magnified during treadmill walking.
Aberrant gait biomechanics in individuals with ACL reconstruction are magnified during treadmill walking.
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DOI：
10.1016/j.jbiomech.2022.110989
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发表时间：
2022-03
影响因子：
2.4
通讯作者：
Troy Blackburn J
中科院分区：
文献类型：
--
作者：
Dewig DR;Mills HR;Evans-Pickett A;Pietrosimone BG;Troy Blackburn J
前交叉韧带重建（ACLR）后步态生物力学异常可能导致创伤后骨关节炎（PTOA）的发展。步态生物力学通常在地面上进行评估，但使用仪器/测力跑步机越来越普遍。本研究的目的是比较ACLR患者和健康对照者在地面和仪器跑步机上的步态生物力学。24名ACLR患者和24名健康对照者完成了地上和步态生物力学评估。生物力学结局包括峰值垂直地面反作用力（vGRF）、膝关节内伸（KEM）和外展（KAM）力矩、膝关节屈曲（KFA）和内收角;足跟着地时的KFA;膝关节屈曲位移;以及每种结局的肢体间对称性。峰值KEM（P < 0.001，95%CI [-0.016，-0.007 xBW*Ht]）和vGRF（P < 0.001，95%CI [-0.09，-0.007 xBW*Ht]）。−0.03 xBW]）在跑步机上的对称性显著低于对照组，但在地上则没有。此外，在地面（P = 0.005，95%CI [−0.010，−0.001 xBW*Ht]）和跑步机（P < 0.001，95%CI [− 0.015，−0.007 xBW*Ht]）上，ACLR肢体的峰值KEM小于对侧肢体，但跑步机上的差异是地面的1.8倍。在跑步机上，ACLR肢体的峰值KFA（P = 0.001，95%CI [−4.2，−1.2°]）和vGRF（P < 0.001，95%CI [−0.07，−0.03 xBW]）较小，但在地面上则不然。这些发现表明，ACLR后在跑步机行走期间，异常步态生物力学加剧，并且在仪器化跑步机上评估运动学和动力学可能对评估PTOA发展的风险因素有价值。
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.
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DOI：
10.1002/jor.25117
发表时间：
2022-01
期刊：
Journal of orthopaedic research : official publication of the Orthopaedic Research Society
影响因子：
--
作者：
Garcia SA;Brown SR;Koje M;Krishnan C;Palmieri-Smith RM
通讯作者：
Palmieri-Smith RM
影响因子：
3.3
作者：
Lee, Song Joo;Hidler, Joseph
通讯作者：
Hidler, Joseph
影响因子：
1.8
作者：
Patterson, Matthew R.;Delahunt, Eamonn;Caulfield, Brian
通讯作者：
Caulfield, Brian
影响因子：
2.8
作者：
Khandha, Ashutosh;Manal, Kurt;Buchanan, Thomas S.
通讯作者：
Buchanan, Thomas S.
影响因子：
1.8
作者：
Pfeiffer, Steven J.;Blackburn, J. Troy;Pietrosimone, Brian
通讯作者：
Pietrosimone, Brian