Walking Energetics, Fatigability, and Fatigue in Older Adults: The Study of Energy and Aging Pilot
Walking Energetics, Fatigability, and Fatigue in Older Adults: The Study of Energy and Aging Pilot
复制标题
DOI：
10.1093/gerona/glu146
复制
发表时间：
2015-04-01
影响因子：
5.1
通讯作者：
Mackey, Dawn C.
中科院分区：
文献类型：
--
作者：
Richardson, Catherine A.;Glynn, Nancy W.;Mackey, Dawn C.
背景资料。步态速度慢会增加老年人的发病率和死亡率。我们研究了最佳步态速度与步行、疲劳性和疲劳性的能量需求之间的关系。老年人(n=36，70-89岁)根据中位数400米步速被分为慢步者和快步者。分别以标准步速(0.72m/S)和最佳步速进行分级运动试验和5min步行试验测定VO2峰值。在步行试验结束时，采用情景疲劳量表和Borg体力消耗评定量表评估患者的适宜性。采用问卷调查法进行疲劳评定。400m以上的最佳步速(范围：0.75-1.58m/S)，快步者平均为1.34m/S，慢步者为1.05m/S(p
Background. Slow gait speed increases morbidity and mortality in older adults. We examined how preferred gait speed is associated with energetic requirements of walking, fatigability, and fatigue.Methods. Older adults (n = 36, 70-89 years) were categorized as slow or fast walkers based on median 400-m gait speed. We measured VO2 peak by graded treadmill exercise test and VO2 during 5-minute treadmill walking tests at standard (0.72 m/s) and preferred gait speeds. Fatigability was assessed with the Situational Fatigue Scale and the Borg rating of perceived exertion at the end of walking tests. Fatigue was assessed by questionnaire.Results. Preferred gait speed over 400 m (range: 0.75-1.58 m/s) averaged 1.34 m/s for fast walkers versus 1.05 m/s for slow walkers (p