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 journalArticle

4 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)469-473
Number of pages5
JournalAmerican Journal of Physical Medicine and Rehabilitation
Volume86
Issue number6
DOIs
StatePublished - Jun 2007

Fingerprint

Energy Metabolism
Walking
Gases
Dilatation and Curettage
Gait
Oxygen Consumption
Healthy Volunteers
Costs and Cost Analysis
Walk Test
Walking Speed

Keywords

  • Gait
  • Oxygen Consumption
  • Reliability
  • Walking

ASJC Scopus subject areas

  • Rehabilitation
  • Health Professions(all)
  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Reliability of a portable gas analyzer during a 5-min walk test. / Teixeira Da Cunha-Filho, Inácio; Henson, Helene; Protas, Elizabeth J.

In: American Journal of Physical Medicine and Rehabilitation, Vol. 86, No. 6, 06.2007, p. 469-473.

Research output: Contribution to journalArticle

Teixeira Da Cunha-Filho, Inácio ; Henson, Helene ; Protas, Elizabeth J. / Reliability of a portable gas analyzer during a 5-min walk test. In: American Journal of Physical Medicine and Rehabilitation. 2007 ; Vol. 86, No. 6. pp. 469-473.
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