Correlation of 4-meter gait speed with clinical indicators of chronic obstructive pulmonary disease.
Respir Investig
; 59(4): 505-512, 2021 Jul.
Article
em En
| MEDLINE
| ID: mdl-33903076
ABSTRACT
BACKGROUND:
Measuring daily physical activity and exercise capacity is recommended in the routine care of patients with chronic obstructive pulmonary disease (COPD). The 4-m gait speed (4mGS) is simple and effective in stratifying patients according to exercise performance, dyspnea, health status, and prognosis. We assessed the reliability of the 4mGS as a clinical marker by examining its association with established clinical indicators among hospitalized patients with COPD.METHODS:
This retrospective study included 78 patients hospitalized with COPD (mean age 76.3 ± 0.9 years; males, n = 69) between January 2016 and June 2018 who were assessed using the 4mGS and divided into slow (<0.8 m/s) and normal (≥0.8 m/s) 4mGS groups. Clinical characteristics were compared, including death during the observation period, time to first exacerbation, and long-term oxygen therapy requirement.RESULTS:
There were strong relationships between 4mGS performance, the 6-min walk test (R = 0.70; p < 0.0001), and the modified Medical Research Council dyspnea scale (R = 0.68; p < 0.0001) among the 78 patients. The slow 4mGS group had a higher frequency of death during the observation period (p = 0.0095) and a greater requirement for long-term oxygen therapy (p = 0.0063). The 4mGS correlated with inspiratory capacity (IC) and IC/total lung capacity ratios, which are respiratory failure indicators.CONCLUSIONS:
The 4mGS is a simple and easy method of assessing the physical condition as well as estimating the prognosis of patients with COPD, and may serve as a useful marker in home medical treatment or clinical settings.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Doença Pulmonar Obstrutiva Crônica
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Velocidade de Caminhada
Tipo de estudo:
Diagnostic_studies
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Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Humans
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Infant
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Male
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article