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

Inácio Teixeira Da Cunha-Filho; Helene Henson; Elizabeth J. Protas

doi:10.1097/PHM.0b013e31805b9505

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

Inácio Teixeira Da Cunha-Filho, Helene Henson, Elizabeth J. Protas

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

OBJECTIVE: To determine the reliability of a gas analyzer while assessing oxygen consumption (&OV0312;O2) during a 5-min walking test. DESIGN: Forty healthy participants were connected to the KB1-C and walked for 5 mins on a 5-m walkway. Total &OV0312;O2 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.

Original language	English (US)
Pages (from-to)	469-473
Number of pages	5
Journal	American Journal of Physical Medicine and Rehabilitation
Volume	86
Issue number	6
DOIs	https://doi.org/10.1097/PHM.0b013e31805b9505
State	Published - Jun 2007

Keywords

Gait
Oxygen Consumption
Reliability
Walking

ASJC Scopus subject areas

Physical Therapy, Sports Therapy and Rehabilitation
Rehabilitation

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10.1097/PHM.0b013e31805b9505

Cite this

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title = "Reliability of a portable gas analyzer during a 5-min walk test",

abstract = "OBJECTIVE: To determine the reliability of a gas analyzer while assessing oxygen consumption (&OV0312;O2) during a 5-min walking test. DESIGN: Forty healthy participants were connected to the KB1-C and walked for 5 mins on a 5-m walkway. Total &OV0312;O2 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.",

keywords = "Gait, Oxygen Consumption, Reliability, Walking",

author = "{Teixeira Da Cunha-Filho}, In{\'a}cio and Helene Henson and Protas, {Elizabeth J.}",

year = "2007",

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language = "English (US)",

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T1 - Reliability of a portable gas analyzer during a 5-min walk test

AU - Teixeira Da Cunha-Filho, Inácio

AU - Henson, Helene

AU - Protas, Elizabeth J.

PY - 2007/6

Y1 - 2007/6

N2 - OBJECTIVE: To determine the reliability of a gas analyzer while assessing oxygen consumption (&OV0312;O2) during a 5-min walking test. DESIGN: Forty healthy participants were connected to the KB1-C and walked for 5 mins on a 5-m walkway. Total &OV0312;O2 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.

AB - OBJECTIVE: To determine the reliability of a gas analyzer while assessing oxygen consumption (&OV0312;O2) during a 5-min walking test. DESIGN: Forty healthy participants were connected to the KB1-C and walked for 5 mins on a 5-m walkway. Total &OV0312;O2 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.

KW - Gait

KW - Oxygen Consumption

KW - Reliability

KW - Walking

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

Abstract

Keywords

ASJC Scopus subject areas

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