Kinematic comparison of split-belt and single-belt treadmill walking and the effects of accommodation.
Kinematic comparison of split-belt and single-belt treadmill walking and the effects of accommodation.
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DOI：
10.1016/j.gaitpost.2011.09.101
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发表时间：
2012-02
期刊：
影响因子：
2.4
通讯作者：
Davis, Irene S.
中科院分区：
文献类型：
--
作者：
Altman, Allison R.;Reisman, Darcy S.;Higginson, Jill S.;Davis, Irene S.
在步态实验室中，仪器化的跑步机变得越来越普遍。仪器化的侧裂式跑步机允许在行走过程中收集每只脚下的力。然而，当在这些跑步机上行走时，可能会有增加支撑基础的趋势，这也会影响其他额状面力学。因此，本研究的目的是探讨在侧裂式仪器跑步机上行走对步态和下肢额状面运动学的影响。20名受试者在分离式和单带式跑步机上行走。记录步态基础和额面运动学角度及变异性数据。单因素方差分析用于确定基线时和在分裂带上调节10分钟后的单一和分裂带条件之间的差异。还确定了步态基础变化与每个运动学变量变化之间的关系。平均而言，在分裂带跑步机上，步态的基础是3.7厘米宽，带之间的间隙为4毫米。在基线或10分钟调节后，未观察到下肢运动学或运动学变异性的平均值存在显著差异。然而，步态基础的增加与峰值膝关节和髋关节内收角的减少显著相关。跑步机皮带之间的4 mm间隙显著增加了所有受试者的平均步态基础。这并没有改变平均额状面运动学。然而，随着步态基础的增加，髋关节和膝关节外展的趋势也增加。
Instrumented treadmills are becoming increasingly more common in gait laboratories. Instrumented side-split treadmills allow the collection of forces under each foot during walking. However, there may be a tendency to increase the base of support when walking on these treadmills, influencing other frontal plane mechanics as well. Therefore, the purpose of this study was to examine the effect of walking on a side-split instrumented treadmill on base of gait and frontal plane kinematics of the lower extremity. Twenty subjects walked on both a split and a single-belt treadmill. Base of gait and frontal plane kinematic angles and variability data were recorded. A one-way ANOVA was used to determine differences between the single and split-belt conditions at baseline and following a 10 minute accommodation on the split-belt. The relationships between the change in base of gait and change in each kinematic variable were also determined. On average, the base of gait was 3.7 cm wider on the split-belt treadmill with a 4 mm gap between belts. No significant differences were observed in the mean values of lower extremity kinematics or kinematic variability at baseline or following the 10 minute accommodation. However, the increase in base of gait was significantly related to a decrease in peak knee and hip adduction angles. The 4 mm gap between the treadmill belts significantly increased the mean base of gait in all subjects. This did not alter mean frontal plane kinematics. However, as base of gait increased, the tendency towards hip and knee abduction also increased.
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DOI：
10.1016/j.clinbiomech.2009.11.002
发表时间：
2010-05
期刊：
Clinical biomechanics (Bristol, Avon)
影响因子：
--
作者：
Zeni JA Jr;Higginson JS
通讯作者：
Higginson JS
影响因子：
2.4
作者：
Mündermann, A;Nigg, BM;Humble, RN
通讯作者：
Humble, RN
影响因子：
2.4
作者：
Riley, Patrick O.;Paolini, Gabriele;Kerrigan, D. Casey
通讯作者：
Kerrigan, D. Casey
影响因子：
2.4
作者：
Hicks, JL;Richards, JG
通讯作者：
Richards, JG
影响因子：
2.4
作者：
Matsas, A;Taylor, N;McBurney, H
通讯作者：
McBurney, H