The repeatability of gait speed and physiological cost index measurements in working adults

Rishi Raj, Hoda Mojazi Amiri, Helen Wang, Kenneth M. Nugent

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Objectives: To determine the performance characteristics of gait speed measurements and the physiological cost index (PCI; heart rate change/gait speed) in working adults. Methods: Gait speeds, heart rate changes, andnon-steady state PCIs were calculated in 61 volunteers who worked in our health sciences center. These subjects completed 9 separate 100-foot walk tests in 3 separate sessions. Results: The mean heart rate change after a 100-foot walk was 16.6 ± 8.1 beats per minute. The mean gait speed was 76.1 ± 9.6 meters per minute, and the mean PCI was 0.22 ± 0.11 beats per meter. There were highly significant correlations among all measurements on the 9 separate tests (correlation coefficients 0.41-0.95); gait speed measurements had the highest correlations (0.91-0.95). In a multivariable model hypertension and arthritis were associated with reduced gait speeds. Conclusion: Gait speed, heart rate changes, and non-steady state PCIs have good repeatability when measured over short walks. This information provides a rapid physiological assessment and a method for measuring changes in functional status in healthy subjects and most patients.

Original languageEnglish (US)
Pages (from-to)128-133
Number of pages6
JournalJournal of Primary Care and Community Health
Volume5
Issue number2
DOIs
StatePublished - Jan 1 2014

Fingerprint

Costs and Cost Analysis
Heart Rate
Walking Speed
Arthritis
Volunteers
Healthy Volunteers
Hypertension
Health

Keywords

  • Functional capacity
  • Gait speed
  • Heart rate
  • Physiologic cost index

ASJC Scopus subject areas

  • Community and Home Care
  • Public Health, Environmental and Occupational Health

Cite this

Raj, Rishi ; Amiri, Hoda Mojazi ; Wang, Helen ; Nugent, Kenneth M. / The repeatability of gait speed and physiological cost index measurements in working adults. In: Journal of Primary Care and Community Health. 2014 ; Vol. 5, No. 2. pp. 128-133.
@article{e52e186d3d5b4b81b4b75f206dfcab1f,
title = "The repeatability of gait speed and physiological cost index measurements in working adults",
abstract = "Objectives: To determine the performance characteristics of gait speed measurements and the physiological cost index (PCI; heart rate change/gait speed) in working adults. Methods: Gait speeds, heart rate changes, andnon-steady state PCIs were calculated in 61 volunteers who worked in our health sciences center. These subjects completed 9 separate 100-foot walk tests in 3 separate sessions. Results: The mean heart rate change after a 100-foot walk was 16.6 ± 8.1 beats per minute. The mean gait speed was 76.1 ± 9.6 meters per minute, and the mean PCI was 0.22 ± 0.11 beats per meter. There were highly significant correlations among all measurements on the 9 separate tests (correlation coefficients 0.41-0.95); gait speed measurements had the highest correlations (0.91-0.95). In a multivariable model hypertension and arthritis were associated with reduced gait speeds. Conclusion: Gait speed, heart rate changes, and non-steady state PCIs have good repeatability when measured over short walks. This information provides a rapid physiological assessment and a method for measuring changes in functional status in healthy subjects and most patients.",
keywords = "Functional capacity, Gait speed, Heart rate, Physiologic cost index",
author = "Rishi Raj and Amiri, {Hoda Mojazi} and Helen Wang and Nugent, {Kenneth M.}",
year = "2014",
month = "1",
day = "1",
doi = "10.1177/2150131913506226",
language = "English (US)",
volume = "5",
pages = "128--133",
journal = "Journal of primary care & community health",
issn = "2150-1319",
publisher = "Sage Periodicals Press",
number = "2",

}

The repeatability of gait speed and physiological cost index measurements in working adults. / Raj, Rishi; Amiri, Hoda Mojazi; Wang, Helen; Nugent, Kenneth M.

In: Journal of Primary Care and Community Health, Vol. 5, No. 2, 01.01.2014, p. 128-133.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The repeatability of gait speed and physiological cost index measurements in working adults

AU - Raj, Rishi

AU - Amiri, Hoda Mojazi

AU - Wang, Helen

AU - Nugent, Kenneth M.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Objectives: To determine the performance characteristics of gait speed measurements and the physiological cost index (PCI; heart rate change/gait speed) in working adults. Methods: Gait speeds, heart rate changes, andnon-steady state PCIs were calculated in 61 volunteers who worked in our health sciences center. These subjects completed 9 separate 100-foot walk tests in 3 separate sessions. Results: The mean heart rate change after a 100-foot walk was 16.6 ± 8.1 beats per minute. The mean gait speed was 76.1 ± 9.6 meters per minute, and the mean PCI was 0.22 ± 0.11 beats per meter. There were highly significant correlations among all measurements on the 9 separate tests (correlation coefficients 0.41-0.95); gait speed measurements had the highest correlations (0.91-0.95). In a multivariable model hypertension and arthritis were associated with reduced gait speeds. Conclusion: Gait speed, heart rate changes, and non-steady state PCIs have good repeatability when measured over short walks. This information provides a rapid physiological assessment and a method for measuring changes in functional status in healthy subjects and most patients.

AB - Objectives: To determine the performance characteristics of gait speed measurements and the physiological cost index (PCI; heart rate change/gait speed) in working adults. Methods: Gait speeds, heart rate changes, andnon-steady state PCIs were calculated in 61 volunteers who worked in our health sciences center. These subjects completed 9 separate 100-foot walk tests in 3 separate sessions. Results: The mean heart rate change after a 100-foot walk was 16.6 ± 8.1 beats per minute. The mean gait speed was 76.1 ± 9.6 meters per minute, and the mean PCI was 0.22 ± 0.11 beats per meter. There were highly significant correlations among all measurements on the 9 separate tests (correlation coefficients 0.41-0.95); gait speed measurements had the highest correlations (0.91-0.95). In a multivariable model hypertension and arthritis were associated with reduced gait speeds. Conclusion: Gait speed, heart rate changes, and non-steady state PCIs have good repeatability when measured over short walks. This information provides a rapid physiological assessment and a method for measuring changes in functional status in healthy subjects and most patients.

KW - Functional capacity

KW - Gait speed

KW - Heart rate

KW - Physiologic cost index

UR - http://www.scopus.com/inward/record.url?scp=84908211889&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84908211889&partnerID=8YFLogxK

U2 - 10.1177/2150131913506226

DO - 10.1177/2150131913506226

M3 - Article

C2 - 24327593

AN - SCOPUS:84908211889

VL - 5

SP - 128

EP - 133

JO - Journal of primary care & community health

JF - Journal of primary care & community health

SN - 2150-1319

IS - 2

ER -