Centre of pressure during walking after unilateral transfemoral amputation.
Centre of pressure during walking after unilateral transfemoral amputation.
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DOI：
10.1038/s41598-022-22254-5
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发表时间：
2022-10-19
影响因子：
4.6
通讯作者：
中科院分区：
文献类型：
--
作者：
截肢给截肢者带来了健康负担；因此，在预防和临床上需要进行步态评估，特别是对于单侧经股动脉截肢(UTFA)的患者。步行时的压力中心(COP)是评价步态的重要参数之一。尽管叠加的COP轨迹反映了神经系统疾病患者的步态特征，但基于UTFA患者COP轨迹的量化特征仍不清楚。因此，在这项研究中，这些COP轨迹被研究在不同的行走速度范围内。COP的轨迹是在一台分带式测力仪跑步机上以八种步行速度记录下来的。基于25名UTFA患者和25名健康对照的COP轨迹，比较了不对称性和变异性参数。与正常对照组相比，UTFA患者的COP轨迹在侧向不对称性和变异性上显著增大，但在前后变异性上没有显着差异。此外，UTFA患者在较低的速度下表现出更大的侧向不对称性。这些结果表明：(1)UTFA患者在步态过程中采用特定方向的平衡控制策略；(2)UTFA患者在较低的行走速度下摔倒的风险也较高。
Lower-limb amputation imposes a health burden on amputees; thus, gait assessments are required prophylactically and clinically, particularly for individuals with unilateral transfemoral amputation (UTFA). The centre of pressure (COP) during walking is one of the most useful parameters for evaluating gait. Although superimposed COP trajectories reflect the gait characteristics of individuals with neurological disorders, the quantitative characteristics based on the COP trajectories of individuals with UTFA remain unclear. Thus, these COP trajectories were investigated across a range of walking speeds in this study. The COP trajectories were recorded on a split-belt force-instrumented treadmill at eight walking speeds. Asymmetry and variability parameters were compared based on the COP trajectories of 25 individuals with UTFA and 25 able-bodied controls. The COP trajectories of the individuals with UTFA were significantly larger in lateral asymmetry and variability but did not show significant differences in anterior–posterior variability compared with those of the able-bodied controls. Further, the individuals with UTFA demonstrated larger lateral asymmetry at lower speeds. These results suggest that (1) individuals with UTFA adopt orientation-specific balance control strategies during gait and (2) individuals with UTFA could also be exposed to a higher risk of falling at lower walk speeds.
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DOI：
10.1016/j.clinbiomech.2011.11.011
发表时间：
2012-06
期刊：
Clinical biomechanics (Bristol, Avon)
影响因子：
--
作者：
Kaufman KR;Frittoli S;Frigo CA
通讯作者：
Frigo CA
影响因子：
2.4
作者：
Lee, Yun-Ju;Liang, Jing Nong
通讯作者：
Liang, Jing Nong
影响因子：
1.5
作者：
Sturk, James A.;Lemaire, Edward D.;Baddour, Natalie
通讯作者：
Baddour, Natalie
影响因子：
3.3
作者：
Lee, Song Joo;Hidler, Joseph
通讯作者：
Hidler, Joseph
影响因子：
3.2
作者：
Roerdink, Melvyn;Cutti, Andrea G.;Beek, Peter J.
通讯作者：
Beek, Peter J.