Acceleration patterns of the head and pelvis when walking on level and irregular surfaces
Acceleration patterns of the head and pelvis when walking on level and irregular surfaces
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DOI：
10.1016/s0966-6362(02)00159-5
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发表时间：
2003-08-01
期刊：
影响因子：
2.4
通讯作者：
Fitzpatrick, RC
中科院分区：
文献类型：
--
作者：
Menz, HB;Lord, SR;Fitzpatrick, RC
本研究的目的是评估受试者在水平和不规则行走面上行走时头部和骨盆的加速度模式，以了解姿势控制系统如何应对具有挑战性的行走条件。30名年轻、健康的受试者在一条平坦的走廊和铺有泡沫和随意放置的木块的人造草地上行走。测量头部和骨盆的时空步态参数和加速度模式。结果显示，在不规则的地面上行走时，受试者能够保持他们的速度，但采用更慢，更可变的节奏和更长的步幅。的。骨盆加速度增加，但头部加速度不受行走面影响。当考虑到整体运动模式时，这些发现表明，当在不规则表面行走时，姿势控制系统的主要目标之一是头部控制，并且受试者调整他们在不规则表面上的行走模式以确保头部保持稳定。(C) 2002 Elsevier Science B.V.版权所有
The aim of this study was to evaluate acceleration patterns at the head and pelvis while subjects walked on a level and an irregular walking surface, to develop an understanding of how the postural control system responds to challenging walking conditions. Thirty young, healthy subjects walked on a level corridor and on artificial grass underlain with foam and wooden blocks placed in an arbitrary manner. Temporo-spatial gait parameters and acceleration patterns at the head and pelvis were measured. The results revealed that when walking on the irregular surface, subjects were able to maintain their velocity, but adopted a slower and more variable cadence and a significantly longer stride length. The. magnitude of pelvis accelerations increased, however head accelerations were not affected by the walking surface. When considered as an overall pattern of movement, these findings suggest that one of the primary objectives of the postural control system when walking on irregular surfaces is head control, and that subjects adapt their stepping pattern on irregular surfaces to ensure that the head remains stable. (C) 2002 Elsevier Science B.V. All rights reserved.