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

页码：469 / 473

页数：5

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