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Regression equations to estimate the 2-min walk distance in an adult Asian population aged 40-75 years.
Mirza, Fatim T; Jenkins, Sue; Justine, Maria; Cecins, Nola; Hill, Kylie.
Afiliación
  • Mirza FT; School of Physiotherapy and Exercise Science, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.
  • Jenkins S; Physiotherapy Department, Faculty of Health Sciences, Universiti Teknologi MARA, Shah Alam, Malaysia.
  • Justine M; School of Physiotherapy and Exercise Science, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.
  • Cecins N; Institute for Respiratory Health, Sir Charles Gairdner Hospital, Perth, WA, Australia.
  • Hill K; Physiotherapy Department, Sir Charles Gairdner Hospital, Perth, WA, Australia.
Respirology ; 23(7): 674-680, 2018 Jul.
Article en En | MEDLINE | ID: mdl-29446206
BACKGROUND AND OBJECTIVE: There is increased use of the 2-min walk test (2MWT) to assess functional exercise capacity. However, the distance achieved during this test may be difficult to interpret in the absence of reference values from a local population. Regression equations to estimate the 2-min walk distance (2MWD) only exist for American and Brazilian populations. The objective of this study was to develop regression equations to estimate the 2MWD in Malaysian adults who were free from major health problems. METHODS: Eighty-seven adults (43 males; mean ± SD age: 57.1 ± 9.6 years) performed two 2MWT using a standardized protocol. Heart rate (HR) was recorded every 30 s during the test. Stepwise multiple regression analysis was performed using age, gender, height, weight and change in HR (ΔHR) as independent variables, and better of the two 2MWD as the dependent variable. A second regression equation, without ΔHR, was planned if ΔHR was retained as one of the predictors of the 2MWD in the first equation. RESULTS: The better of the two 2MWD was 200 ± 34 m. Males walked 33 ± 6 m further than females (P < 0.001). The two regression equations were 196 - 1.1 × age, years + 1.0 × ΔHR, bpm + 31.2 × gender (R2 = 0.73) and 279 - 1.7 × age, years + 35.9 × gender (R2 = 0.47) with females = 0 and males = 1. CONCLUSION: The equations derived in this study may facilitate the interpretation of the 2MWD in clinical populations in Malaysia, as well as in countries with similar cultural backgrounds to Malaysia.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Caminata / Tolerancia al Ejercicio / Pueblo Asiatico / Prueba de Esfuerzo Tipo de estudio: Diagnostic_studies / Guideline / Prognostic_studies Límite: Adult / Aged / Female / Humans / Male / Middle aged País/Región como asunto: Asia Idioma: En Revista: Respirology Año: 2018 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Australia
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Caminata / Tolerancia al Ejercicio / Pueblo Asiatico / Prueba de Esfuerzo Tipo de estudio: Diagnostic_studies / Guideline / Prognostic_studies Límite: Adult / Aged / Female / Humans / Male / Middle aged País/Región como asunto: Asia Idioma: En Revista: Respirology Año: 2018 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Australia