Physical Activity Frequency and the Risk of Stroke: A Nationwide Cohort Study in Korea.
J Am Heart Assoc
; 6(9)2017 Aug 30.
Article
en En
| MEDLINE
| ID: mdl-28855168
ABSTRACT
BACKGROUND:
The current guideline recommends moderate- to vigorous-intensity physical activity (PA) at least 40 min/day for 3 to 4 days/week. Although recent evidence has demonstrated that low-dose PA could reduce cardiovascular mortality, the relationship between low-dose PA and the risk of stroke remains uncertain. METHODS ANDRESULTS:
Using data from a nation-wide sample cohort in Korea, we examined 336 326 individuals who received a general health examination between 2009 and 2010. Level of PA was assessed using a questionnaire for weekly PA frequencies regarding 3 intensity categories light, moderate, and vigorous. Moderate- to vigorous-intensity PA (MVPA) was classified into 4 frequency categories none, 1 to 2, 3 to 4, or ≥5 times/week. Cox proportional hazard models were constructed to estimate the risk of stroke. During the average follow-up of 3.6 years, 2213 stroke cases occurred. MVPA was none in 50%, 1 to 2 times/week in 20%, 3 to 4 times/week in 13%, and ≥5 times/week in 18% of the cohort. Individuals with MVPA 1 to 2 times/week had a 16% reduced risk of stroke (adjusted hazard ratio, 0.84; 95% confidence interval, 0.73-0.96) compared with those with no MVPA. The population attributable fraction of no MVPA was 12%, which was the second most important risk factor for a stroke after hypertension.CONCLUSIONS:
Even 1 to 2 times a week of MVPA might be beneficial to prevent a first-ever stroke in the general population, although a quantitative validation of the questionnaire is needed. From a public health perspective, we need to encourage inactive people to start exercising with more-achievable goals.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Prevención Primaria
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Ejercicio Físico
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Accidente Cerebrovascular
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Conducta de Reducción del Riesgo
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Estilo de Vida Saludable
Tipo de estudio:
Diagnostic_studies
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Etiology_studies
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Observational_studies
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Prognostic_studies
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Qualitative_research
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Risk_factors_studies
Límite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
País como asunto:
Asia
Idioma:
En
Año:
2017
Tipo del documento:
Article