Ergonomic effects of load carriage on energy cost of gradient walking
Ergonomic effects of load carriage on energy cost of gradient walking
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DOI：
10.1016/j.apergo.2007.06.001
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发表时间：
2008-03-01
影响因子：
3.2
通讯作者：
Yasukouchi, Akira
中科院分区：
文献类型：
--
作者：
Abe, Daijiro;Muraki, Satoshi;Yasukouchi, Akira
我们研究了负荷对步行能量成本（C-w）的影响，其定义为水平和坡度步行时2分钟稳态耗氧量与速度的比值，以及经济速度（ES）。10名男子在跑步机上以不同的速度行走，背部有负荷和没有负荷，梯度为0%和+/- 5%。只有在以较慢的速度水平行走时，负重在背上时，才观察到显著降低的C-w值。当背载时，ES显著下降小于5%。负载和空载条件下ES也有显著的梯度差异。这些结果将适用于更广泛的职业和休闲任务。(c) 2007 Elsevier Ltd.版权所有。
We examined the effects of load on the energy cost of walking (C-w), being defined as the ratio of the 2-min steady-state oxygen consumption to the speed, and economical speed (ES) during level and gradient walking. Ten men walked on a treadmill at various speeds with and without a load on their back at 0% and +/- 5% gradients. Significantly lower C-w values were observed only when the load was carried on the back during level walking at slower speeds. The ES was significantly decreased by less than 5% when the load was carried on the back. Significant gradient differences were also observed in the ES in the load and no load conditions. These results would be applicable to a wider range of occupational and leisure tasks. (c) 2007 Elsevier Ltd. All rights reserved.