Frontal and sagittal plane analyses of the stair climbing task in healthy adults aged over 40 years: what are the challenges compared to level walking?
Frontal and sagittal plane analyses of the stair climbing task in healthy adults aged over 40 years: what are the challenges compared to level walking?
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DOI：
10.1016/s0268-0033(03)00179-7
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发表时间：
2003-12-01
影响因子：
1.8
通讯作者：
Malouin, F
中科院分区：
文献类型：
--
作者：
Nadeau, S;McFadyen, BJ;Malouin, F
客观的。这项研究比较了 40 岁以上健康成年人的爬楼梯和水平行走。设计。十一名受试者以他们舒适的速度进行表演。背景。爬楼梯过程中研究的参数数量有限，特别是在额平面中。方法。使用脚踏开关和 Optotrak 系统获得时间-距离参数和三维运动学数据。地面反作用力是通过嵌入楼梯第二级台阶或水平行走地面中的力平台收集的。使用万向旋转矩阵计算相对角度，并使用逆动态方法估计踝关节、膝关节和髋关节处的净力矩和功率。结果。与水平行走相比，爬楼梯的平均循环持续时间明显更长，站立时间比例更短。额面关节角度、力矩和力量的轮廓表明髋部外展肌在控制姿势中骨盆的任务中采取不同的动作。矢状面的轮廓证实了膝伸肌在爬楼梯过程中的主导作用，但也揭示了膝-髋能量生成模式，可以避免中间步骤。结论。结果表明，在患者爬楼梯康复中应考虑神经肌肉骨骼系统的环境特异性适应。相关性本研究强调了在受试者设计中与水平行走相比爬楼梯的挑战。还报告了对于台阶管理康复很重要的爬楼梯的关键特征。 (C) 2003 Elsevier Ltd. 保留所有权利。
Objective. This study compared stair climbing and level walking in healthy adults aged over 40 years.Design. Eleven subjects performed at their comfortable speed.Background. The number of parameters studied during stair climbing has been limited, in particular in the frontal plane.Methods. Time-distance parameters and three-dimensional kinematic data were obtained using foot-switches and an Optotrak system. Ground reaction forces were collected with a force platform embedded in the second step of the staircase or in the ground for level walking. Relative angles were calculated using a Cardanic rotation matrix and the net moments and the powers at the ankle, knee and hip joints were estimated with an inverse dynamic approach.Results. A significant longer mean cycle duration and a shorter proportion of time in stance was obtained for stair climbing as compared to level walking. Profiles of the frontal plane joint angles, moments and powers indicated a different action of the hip abductors across tasks to control the pelvis in stance. Profiles of the sagittal plane confirmed the dominant role of the knee extensors during stair climbing but revealed also a knee-hip energy generation pattern that allows the avoidance of the intermediate step.Conclusions. Results suggest environment specific adaptations of the neuro-musculo-skeletal system that should be considered in the rehabilitation of stair climbing in patients.RelevanceThis study highlights the challenges of stair climbing compared to level walking in a within subject design. Key features of stair climbing that are important for the rehabilitation of step management are also reported. (C) 2003 Elsevier Ltd. All rights reserved.