Age-related and obstacle height-related differences in movements while stepping over obstacles.
Age-related and obstacle height-related differences in movements while stepping over obstacles.
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DOI：
10.1186/s40101-015-0052-8
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发表时间：
2015-03-24
影响因子：
3.1
通讯作者：
Matsuoka T
中科院分区：
文献类型：
--
作者：
Shin S;Demura S;Watanabe T;Yabumoto T;Shi B;Sakakibara N;Matsuoka T
本研究旨在检查跨越障碍时与年龄相关和与障碍高度相关的运动差异。参与者包括 16 名老年人和 9 名年轻女性。 5 或 20 厘米高的障碍物位于 4 米步行道的中心。参与者被指示尽快沿着路径行走。使用三维运动分析系统对参与者的动作进行分析，该系统记录他们行走和跨过障碍物时的动作。在前肢和后肢的初始接触和摆动瞬间检查了七个关节角度以及地面和六个标记之间的距离。在最初接触的瞬间，老年女性在跨过20厘米的障碍时，准备迈步的脚趾高度比年轻女性低。年轻女性的躯干旋转程度高于老年女性。在摆动瞬间，老年女性在跨过20厘米的障碍物时，前肢表现出更大的踝关节背屈和髋部内收角度。他们通过增加踝关节背屈、膝关节屈曲、髋关节屈曲和脚内翻来移动后肢，以确保他们在跨过障碍物时不会接触到障碍物。这些运动模式是老年人的特征，他们由于下肢力量下降而无法轻松抬起下肢。
This study aims to examine age-related and obstacle height-related differences in movements while stepping over obstacles. The participants included 16 elderly and nine young women. Obstacles that were either 5 or 20 cm high were positioned at the center of a 4-m walking path. The participants were instructed to walk along the path as quickly as possible. The participants’ movements were analyzed using a three-dimensional motion analysis system that recorded their movements as they walked and stepped over the obstacles. Seven joint angles and the distances between the ground and six markers were examined in the initial contact and swing instants of the leading and trailing limbs. In the initial contact instant, the elderly women prepared for stepping with a lower toe height than the young women when stepping over the 20-cm obstacle. Trunk rotation was greater in the young women than in the elderly women. In the swing instant, the elderly women showed greater ankle dorsiflexion and hip adduction angles for the leading limb when stepping over the 20-cm obstacle. They moved the trailing limb with increased ankle dorsiflexion, knee flexion, hip flexion, and foot inversion to ensure that they did not touch the obstacle as they stepped over it. These movement patterns are characteristic of elderly individuals who cannot easily lift their lower limbs because of decreased lower-limb strength.
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影响因子：
2.4
作者：
Draganich, LF;Kuo, CE
通讯作者：
Kuo, CE
DOI：
10.1093/gerona/57.4.b166
发表时间：
2002-04-01
影响因子：
5.1
作者：
McFayden, BJ;Prince, F
通讯作者：
Prince, F
影响因子：
2.4
作者：
Lu, Tung-Wu;Chen, Hao-Ling;Chen, Sheng-Chang
通讯作者：
Chen, Sheng-Chang
影响因子：
12.7
作者：
Li, Wenjun;Keegan, Theresa H. M.;Kelsey, Jennifer L.
通讯作者：
Kelsey, Jennifer L.
影响因子：
3.6
作者：
Van Hanegem, E.;Enkelaar, L.;Weerdesteyn, V.
通讯作者：
Weerdesteyn, V.