Factors associated with changes in gait speed in older adults

David M. Buchner, M. Elaine Cress, Peter C. Esselman, Anthony J. Margherita, Barbara Jane De Lateur, A. John Campbell, Edward H. Wagner

Research output: Contribution to journalArticle

Abstract

Background. The study addressed whether changes in gait speed in community-dwelling older adults were associated with changes in fitness (strength and aerobic capacity), physical health status, and/or depressive symptoms. Methods. The study sample comprised 152 community-dwelling adults aged 68-85 who had participated in an exercise study. Study measures at baseline and 6-month follow-up included gait speed, a leg strength score, maximal aerobic capacity (V̇O 2max), CES-Depression scale, and physical health status (SIP Physical Dimension). Results. In cross-sectional regression analyses, leg strength, V̇O 2max, weight, and the strength by V̇O 2max interaction term were significant independent predictors of gait speed (R 2 = 26%). Based upon the observed 7% increase in V̇O 2max and 8% increase in strength in the exercise groups, the regression model predicted only a 2% (1.5 m/min) increase in gait speed which did not differ significantly from the observed increase of 0% (.32 m/min). The strongest correlate of change in gait speed was change in CES-D scores (partial R = - .37). Change in physical health status also correlated with change in gait speed (partial R = -.28), while change in fitness did not. Conclusions. The results suggest, in the range of fitness of the study sample that changes in gait speed are related to changes in depressive symptoms and physical health status, but not to modest changes in fitness. A model assuming nonlinear relationships may be appropriate for understanding how strength and aerobic capacity affect gait speed.

Original languageEnglish (US)
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume51
Issue number6
StatePublished - Nov 1996

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Health Status
Independent Living
Depression
Leg
Walking Speed
Cross-Sectional Studies
Regression Analysis
Weights and Measures

ASJC Scopus subject areas

  • Aging

Cite this

Buchner, D. M., Cress, M. E., Esselman, P. C., Margherita, A. J., De Lateur, B. J., Campbell, A. J., & Wagner, E. H. (1996). Factors associated with changes in gait speed in older adults. Journals of Gerontology - Series A Biological Sciences and Medical Sciences, 51(6).

Factors associated with changes in gait speed in older adults. / Buchner, David M.; Cress, M. Elaine; Esselman, Peter C.; Margherita, Anthony J.; De Lateur, Barbara Jane; Campbell, A. John; Wagner, Edward H.

In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences, Vol. 51, No. 6, 11.1996.

Research output: Contribution to journalArticle

Buchner, DM, Cress, ME, Esselman, PC, Margherita, AJ, De Lateur, BJ, Campbell, AJ & Wagner, EH 1996, 'Factors associated with changes in gait speed in older adults', Journals of Gerontology - Series A Biological Sciences and Medical Sciences, vol. 51, no. 6.
Buchner, David M. ; Cress, M. Elaine ; Esselman, Peter C. ; Margherita, Anthony J. ; De Lateur, Barbara Jane ; Campbell, A. John ; Wagner, Edward H. / Factors associated with changes in gait speed in older adults. In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences. 1996 ; Vol. 51, No. 6.
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