Ground reaction forces during human locomotion on railroad ballast

被引：0

作者：

Wade, Chip ^{[1
]}

Redfern, Mark S. ^{[2
]}

机构：

[1] Andrews Research and Education Institute, Gulf Breeze, FL, United States

[2] Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States

来源：

Journal of Applied Biomechanics | 2007年 / 23卷 / 04期

关键词：

Locomotion over ballast surfaces provides a unique situation for investigating the biomechanics of gait. Although much research has focused on level and sloped walking on a smooth; firm surface in order to understand the common kinematic and kinetic variables associated with human locomotion; the literature currently provides few if any discussions regarding the dynamics of locomotion on surfaces that are either rocky or uneven. The purpose of this study was to investigate a method for using force plates to measure the ground reaction forces (GRFs) during gait on ballast. Ballast is a construction aggregate of unsymmetrical rock used in industry for the purpose of forming track bed on which railway ties are laid or in yards where railroad cars are stored. It is used to facilitate the drainage of water and to create even running surfaces. To construct the experimental ballast surfaces; 31.75-mm (1 1/4-in.) marble ballast at depths of approximately 63.5 mm (2.5 in.) or 101.6 mm (4 in.) were spread over a carpeted vinyl tile walkway specially designed for gait studies. GRF magnitudes and time histories from a force plate were collected under normal smooth surface and under both ballast surface conditions for five subjects. GRF magnitudes and time histories during smooth surface walking were similar to GRF magnitudes and time histories from the two ballast surface conditions. The data presented here demonstrate the feasibility of using a force plate system to expand the scope of biomechanical analyses of locomotion on ballast surfaces. © 2007 Human Kinetics; Inc;

D O I：

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学科分类号：

摘要：

Journal article (JA)

引用

页码：322 / 329

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