Gait variability in community-dwelling older adults.
J Am Geriatr Soc
; 49(12): 1646-50, 2001 Dec.
Article
em En
| MEDLINE
| ID: mdl-11843998
ABSTRACT
OBJECTIVES:
To describe gait variability at usual and fast walking speeds in community-dwelling older adults and to describe the effects of increasing gait speed on gait variability.DESIGN:
Cross-sectional, descriptive study.SETTING:
The Cardiovascular Health Study at the University of Pittsburgh.PARTICIPANTS:
Ninety-five community-living older adults, 54 women and 41 men, age 65 and older (mean age +/- standard deviation 79.4 +/- 3.37). MEASUREMENTS Gait measured at participant's usual and fast walking speed collected using an instrumented walkway. Step-length and step-width variability were determined using the coefficient of variation.RESULTS:
Step-length variability was greatest in those who walked the slowest (r = -0.66, P < .001); step-width variability was smallest in those who walked the slowest (r -0.37, P < .001). Individuals who could not increase their walking speed (<0.10 m/second) on command had an increase in step-length variability and a decrease in step-width variability, whereas those who could increase their speed (>0.10 m/second) had an increase in step-width variability when walking at a faster speed.CONCLUSIONS:
Step-length and step-width variability have opposite associations with gait speed in older adults. Improvement in step-length and step-width variability with attempted acceleration might be a key factor to examine in future studies of disability risk and therapeutic interventions.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Envelhecimento
/
Caminhada
/
Marcha
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
J Am Geriatr Soc
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Estados Unidos