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Salud Pública

Svenja Schwarck1,2, Niklas Behrenbruch1, Beate Schumann-Werner1,2

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Resumen
Este resumen es generado por máquina.

La aptitud aeróbica se asocia con una patología cerebral reducida y una mejor cognición en adultos mayores. Esto sugiere que la actividad física puede apoyar el mantenimiento cerebral y la reserva cognitiva, mitigando potencialmente el deterioro cognitivo relacionado con la edad.

Palabras clave:
aptitud aeróbicasalud cerebraladultos mayoresreserva cognitivadeterioro cognitivo

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Área de la Ciencia:

  • Neurociencia
  • Gerontología
  • Salud Pública

Sus antecedentes:

  • La reserva cognitiva (CR) y el mantenimiento cerebral (BM) son clave para preservar la función cognitiva con el envejecimiento y la enfermedad.
  • La actividad física es una vía potencial hacia BM y CR, pero los mecanismos que vinculan la aptitud física con la salud cerebral no están claros.

Objetivo del estudio:

  • Investigar la asociación entre la aptitud física y la patología cerebral en adultos mayores.
  • Examinar si la aptitud física modera el impacto de la patología cerebral en el rendimiento cognitivo.

Principales métodos:

  • 167 adultos mayores cognitivamente sanos se sometieron a evaluaciones del rendimiento cognitivo, la capacidad aeróbica (VO2max) y la capacidad muscular.
  • Los biomarcadores recopilados incluyeron marcadores de Alzheimer en plasma, marcadores de plasticidad en suero y medidas de PET/RM de patología cerebral (p. ej., tau en el lóbulo temporal medial, hiperintensidades de la sustancia blanca, espacios perivasculares).

Principales resultados:

  • Una mayor capacidad aeróbica se correlacionó con menores volúmenes de espacios perivasculares en los ganglios basales y una mejor cognición global.
  • La carga de tau en el lóbulo temporal medial se asoció con un peor rendimiento en la memoria verbal.
  • No se encontraron asociaciones significativas entre la aptitud física y los biomarcadores de Alzheimer o plasticidad, ni con el volumen del hipocampo.

Conclusiones:

  • La aptitud aeróbica se asocia con una reducción de la carga cerebrovascular (espacios perivasculares) y puede actuar como un indicador de reserva cognitiva frente a la patología de tau en el lóbulo temporal medial.
  • La aptitud física puede ayudar a mantener la estructura y la función cerebral, mitigando potencialmente el deterioro cognitivo relacionado con la edad.