A validation of the 10-meter incremental shuttle walk test as a measure of aerobic power in cardiac and rheumatoid arthritis patients.
Arch Phys Med Rehabil
; 82(6): 807-10, 2001 Jun.
Article
em En
| MEDLINE
| ID: mdl-11387587
ABSTRACT
OBJECTIVE:
To validate a simple, clinically relevant, and inexpensive test of aerobic power-the 10-meter incremental shuttle walk test (SWT)--in 2 separate patient populations.DESIGN:
Two-sample validity study.SETTING:
Physiotherapy department of major hospital in the United Kingdom. PATIENTS Convenience samples of rheumatoid arthritis (RA) patients (n = 10) and cardiac patients (n = 10). INTERVENTION Subjects were attached to a portable respiratory gas analyzer to measure oxygen uptake. They walked around an oval 10-meter course, starting at 0.5m/s, with velocity gradually increased by .17m/s increments for as long as they could, for up to 12 minutes. MAIN OUTCOMEMEASURES:
A subject's maximal rate of oxygen uptake during exercise (V(O)(2)max) established with linear extrapolation was regressed against the number of shuttles completed (distance walked). An earlier study (n = 28) showed high levels of reliability and validity with linear extrapolation.RESULTS:
No significant linear relationship was found between V(O)(2)max and the number of shuttles completed (R(2); RA subjects = 9.7%, cardiac subjects = .03%, p > .05).CONCLUSION:
These results do not support use of the SWT as a representative measure of aerobic power. Despite this finding, the advantages of developing a clinically viable alternative to costly laboratory testing warrants further study of the SWT in patient groups.
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Base de dados:
MEDLINE
Assunto principal:
Oxigênio
/
Artrite Reumatoide
/
Testes de Função Respiratória
/
Doença das Coronárias
/
Teste de Esforço
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Ano de publicação:
2001
Tipo de documento:
Article