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Ejercicio moderado y colesterol de lipoproteína de alta densidad. Observaciones durante un programa de rehabilitación
JAMA
|November 16, 1979
Resumen
Un programa de ejercicio moderado de 13 semanas, principalmente caminar, mejoró el colesterol de lipoproteína de alta densidad (HDL-C) y disminuyó los niveles de insulina en hombres con enfermedad arterial coronaria. Estos beneficios se produjeron sin cambios significativos en la dieta o el peso.
Área de la Ciencia:
- Ejercicio cardiovascular Fisiología del ejercicio cardiovascular
- Salud y enfermedades metabólicas.
Sus antecedentes:
- El estilo de vida sedentario y la enfermedad de las arterias coronarias (CAD) se asocian con perfiles metabólicos adversos.
- Comprender el impacto del ejercicio en los marcadores metabólicos en pacientes con CAD es crucial para la reducción del riesgo.
Objetivo del estudio:
- Investigar los efectos de un programa de ejercicio moderado de 13 semanas sobre la insulina plasmática en ayunas, los lípidos y el colesterol lipoproteico en hombres sedentarios con CAD.
Principales métodos:
- 32 hombres sedentarios de mediana edad con CAD participaron en un programa de 13 semanas.
- Ejercicio que involucra predominantemente caminar o correr despacio.
- Las mediciones incluyeron insulina plasmática en ayunas, lípidos y colesterol lipoproteico.
Principales resultados:
- Los niveles de colesterol de lipoproteínas de alta densidad (HDL-C) aumentaron significativamente.
- Las concentraciones plasmáticas de insulina en ayunas disminuyeron significativamente.
- No se observaron cambios significativos en el producto de la presión arterial sistólica y la frecuencia cardíaca, los triglicéridos plasmáticos o el colesterol lipoproteico de baja densidad.
Conclusiones:
- El ejercicio moderado, como caminar, puede mejorar el HDL-C y reducir los niveles de insulina en hombres sedentarios con CAD.
- Estos cambios metabólicos positivos pueden ocurrir sin cambios significativos en el peso, modificaciones en la dieta o un efecto de entrenamiento cardiovascular formal.
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