Reduction in Energy Expenditure During Walking Using an Automated Stride Assistance Device in Healthy Young Adults
Reduction in Energy Expenditure During Walking Using an Automated Stride Assistance Device in Healthy Young Adults
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DOI：
10.1016/j.apmr.2014.07.008
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发表时间：
2014-11-01
影响因子：
4.3
通讯作者：
Yamakami, Natsuki
中科院分区：
文献类型：
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作者：
Kitatani, Ryosuke;Ohata, Koji;Yamakami, Natsuki
目的：研究一种自动跨步辅助装置的效果，该装置使用呼气法辅助健康年轻人行走过程中髋关节屈曲和伸展运动的能量消耗。设计：前瞻性单组设计，比较2种辅助条件之间的能量消耗差异。设置：实验室。参与者：21至32岁的健康志愿者（N=10）。干预措施：不适用。主要指标：单位时间耗氧量（V）/doto（2）成本（ml. kg（-1）.m（-1））和心率在2种辅助条件下测量（次/分）（3 Nm髋关节运动辅助和无辅助）和2种步行速度结果：两组患者在舒适步行速度（CWS）和最大步行速度（MWS）下的步行速度差异无统计学意义。在CWS和MWS下，与无辅助条件相比，有辅助条件下的（V）过度用药（2）成本和心率显著降低。在有辅助条件下，相对于无辅助条件，CWS和MWS的（V）超过doto（2）成本的减少分别为7.06%和10.52%。结论：自动步幅辅助装置可用于减少健康成人行走过程中的能量消耗。有必要进行进一步研究，以调查该器械是否为因力量不足而导致行动不便的个体提供了实质性帮助。(C)2014年美国康复医学大会
Objective: To investigate the effects of an automated stride assistance device that assists hip joint flexion and extension movement in energy expenditure during walking in healthy young adults using an expired gas method.Design: Prospective, single-group design to compare the differences of energy expenditure between 2 assistive conditions.Setting: Laboratory.Participants: Healthy volunteers (N=10) aged 21 to 32 years.Interventions: Not applicable.Main Outcome Measures: Oxygen consumption per unit time ((V) over doto(2)) cost (ml.kg(-1).m(-1)), and heart rate (beats/min) were measured in 2 assistive conditions (with 3-Nm hip motion assistance and without assistance) and at 2 walking speeds (comfortable walking speed [CWS] and maximum walking speed [MWS]).Results: There were no significant differences in walking speed between the with- and without-assistance conditions at either the CWS or MWS. The (V) over doto(2) cost and heart rate were significantly reduced in the with-assistance condition compared with the without-assistance condition, at both the CWS and MWS. The reduction in the (V) over doto(2) cost during the with-assistance condition, relative to the without-assistance condition, was 7.06% at the CWS and 10.52% at the MWS.Conclusions: The automated stride assistance device is useful for reducing energy expenditure during walking in healthy adults. Further studies are warranted to investigate if this device provides substantial help to individuals with impaired mobility as a result of strength deficits. (C) 2014 by the American Congress of Rehabilitation Medicine