Lower limb joint work and joint work contribution during,clownhill and uphill walking at different inclinations
Lower limb joint work and joint work contribution during,clownhill and uphill walking at different inclinations
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DOI：
10.1016/j.jbiomech.2017.07.001
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发表时间：
2017-08-16
影响因子：
2.4
通讯作者：
Schwameder, Hermann
中科院分区：
文献类型：
--
作者：
Alexander, Nathalie;Strutzenberger, Gerda;Schwameder, Hermann
工作表现和个人关节对总工作的贡献是创建训练方案的重要信息，但到目前为止还没有评估斜坡行走。因此，本研究的目的是分析下肢关节工作和髋关节，膝关节和踝关节的贡献，总下肢工作在斜坡行走在健康人群。18名男性参与者（27.0 +/- 4.7岁，1.80 +/- 0.05 m，74.5 +/- 8.2 kg）以1.1 m/s的速度在0度、+/- 6度、+/- 2度和+/- 18度的倾斜角下在装有仪器的坡道上行走。使用运动捕捉系统（Vicon）和两个测力板（AMTI）捕捉运动学和动力学数据。关节功率曲线，关节功（正，负，绝对）和每个关节的总下肢工作的贡献进行了分析，在整个站立阶段使用重复测量的方差分析。随着倾斜度的增加，踝关节和髋关节的正关节功增加，上坡行走时总的正关节功增加。在下坡行走过程中，每个关节的负关节功和总功增加。上坡（所有关节）和下坡（脚踝和膝盖）行走时绝对功都增加了。膝关节的贡献，总负和绝对的工作增加下坡行走，而髋关节和踝关节的贡献减少。这项研究确定，当从水平切换到6和从6切换到12倾斜时，与从12切换到18倾斜相比，单个关节工作的增益更明显。研究结果可用于训练建议和具体的训练干预方面的斜坡步行。(C)2017爱思唯尔有限公司版权所有
Work performance and individual joint contribution to total work are important information for creating training protocols, but were not assessed so far for sloped walking. Therefore, the purpose of this study was to analyze lower limb joint work and joint contribution of the hip, knee and ankle to total lower limb work during sloped walking in a healthy population. Eighteen male participants (27.0 +/- 4.7 yrs, 1.80 +/- 0.05 m, 74.5 +/- 8.2 kg) walked on an instrumented ramp at inclination angles of 0 degrees, +/- 6 degrees, +/- 2 degrees and +/- 18 degrees at 1.1 m/s. Kinematic and kinetic data were captured using a motion -capture system (Vicon) and two force plates (AMTI). Joint power curves, joint work (positive, negative, absolute) and each, joint's contribution to total lower limb work were analyzed throughout the stance phase using an ANOVA with repeated measures. With increasing inclination positive joint work increased for the ankle and hip joint and in total during uphill walking. Negative joint work increased for each joint and in total work during downhill walking. Absolute work was increased during both uphill (all joints) and downhill (ankle & knee) walking. Knee joint contribution to total negative and absolute work increased during downhill walking while hip and ankle contributions decreased. This study identified, that, when switching from level to a 6 and from 6 to a 12 inclination the gain of individual joint work is more pronounced compared to switching from 12 to an 18 inclination. The results might be used for training recommendations and specific training intervention with respect to sloped walking. (C) 2017 Elsevier Ltd. All rights reserved.