Ergonomic effects of load carriage on the upper and lower back on metabolic energy cost of walking
Ergonomic effects of load carriage on the upper and lower back on metabolic energy cost of walking
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DOI：
10.1016/j.apergo.2007.07.001
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发表时间：
2008-05-01
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
我们研究了负重位置对步行能量消耗的影响，步行能量消耗定义为2分钟稳态耗氧量与速度和经济速度的比值。14名健康男性以不同的速度在跑步机上行走，下背部和上背部没有和有负荷，这相当于他们体重的15%。步行的能量消耗显着下降，在步行过程中的负载比没有负载在较慢的速度。在60-80 m/min时，上背负重比下背负重行走的能量消耗显著降低。上背和下背负重时，经济速度显著降低，且与身高显著相关。这些研究结果表明，一个最佳的携带方法是显而易见的，以减少在步行负荷的身体压力。(c)2007爱思唯尔有限公司版权所有。
We examined the effects of load carriage position on the energy cost of walking defined as the ratio of the 2-min steady-state oxygen consumption to the speed and economical speed. Fourteen healthy men walked on a treadmill at various speeds without and with load on the lower and upper back, which corresponded to 15% of their body mass. The energy cost of walking significantly decreased during walking with load than without load at slower speeds. A significant decrease in the energy cost of walking was also observed while carrying the load on the upper back than on the lower back at 60-80 m/min. The economical speed significantly decreased when carrying the load on the upper and lower back, and it was significantly correlated with body height. These findings suggest that an optimal carrying method is evident to reduce physical stress during walking with loads. (c) 2007 Elsevier Ltd. All rights reserved.