Reliability of a portable gas analyzer during a 5-min walk test

被引：3
|
作者：
da Cunha-Filho, Inacio Teixeira
Henson, Helene
Protas, Elizabeth J.
机构：
[1] Ctr Univ Belo Horizonte, Belo Horizonte, MG, Brazil
[2] Michael E DeBakey VA Med Ctr, Dept Phys Med & Rehabil, Houston, TX USA
[3] Michael E DeBakey VA Med Ctr, Rehabil Res & Dev Ctr Excellence Healthy Aging Di, Houston, TX USA
[4] Baylor Coll Med, Houston, TX 77030 USA
[5] Univ Texas, Med Branch, Dept Phys Therapy, Galveston, TX 77550 USA
来源：
AMERICAN JOURNAL OF PHYSICAL MEDICINE & REHABILITATION | 2007年 / 86卷 / 06期
关键词：
oxygen consumption; gait; reliability; walking;
D O I：
10.1097/PHM.0b013e31805b9505
中图分类号：
R49 [康复医学];
学科分类号：
100215 ;
摘要：
Objective: To determine the reliability of a gas analyzer while assessing oxygen consumption (VO2) during a 5-min walking test. Design: Forty healthy participants were connected to the KB 1 -C and walked for 5 mins on a 5-m walkway. TotalVO(2) or energy expenditure (EE) was obtained by averaging the samples for each minute for 5 mins of walking. Walk distance (D), gait speed (S), and gait energy cost (C) were also evaluated. Results: The ICC2,1 for EE, D, S, and C were 0.88, 0.92, 0.92, and 0.67, respectively. The coefficient of variation across trials for each variable was 7.4, 3.6, 3.2, and 9%, respectively. Conclusion: All but C generated high coefficients of reliability. All variables demonstrated acceptable test-retest variability. There was low variability between participants for C.
引用
收藏
页码：469 / 473
页数：5
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