階段歩行・坂道歩行のエネルギ論的分析(1部生体の力学的特性)

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There has been a great deal of research on human walking on level ground because level walking is the most fundamental transportation method for us. However, we frequently encounter stairs and slopes during the course of daily activities. Stair-climbing and slope-walking require much more energy than level walking, so biomechanical analysis might be needed especially for elderly people and the physical-handicapped. But few reports on the stair-climbing and slope-walking have been published. The purpose of the present study was to analyze the energy aspect of stair-climbing and slope-walking. The energy consumption during stair-climbing and slope-walking was calculated from gait data using a mathematical model and compared with that calculated from O_2 consumption data. The method of gait measurement and the mathematical model have already been described by the authors. The values were in good agreement. The positive and negative work involved in level, stair, and slope walking were calculated. The amounts of positive and negative work were equal during level walking. Positive work overcame negative during ascension of stairs or slope, and negative work overcame positive during descent. More energy was consumed going up than during level walking because it required more positive work, and more energy was consumed going down than during level walking because it required more negative work. The energy per unit distance was minimized by adequate stride length and cadence during ascent of a slope, but the energy expended per unit of time was very large, so this was not considered an optimum condition. The condition at which the energy per unit time equals that of the optimum condition of level walking might be the most adequate condition during ascent of a slope. These results should be reflected in the design of stairs.
バイオメカニズム学会の論文
1994-08-10

階段歩行・坂道歩行のエネルギ論的分析(1部生体の力学的特性)

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階段歩行・坂道歩行のエネルギ論的分析(1部 生体の力学的特性)

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階段歩行・坂道歩行のエネルギ論的分析(1部生体の力学的特性)