Activité physique : rien ne vaut le cardio pour réduire la mortalité

activité physique : rien ne vaut le cardio pour réduire la mortalité

Activité physique : rien ne vaut le cardio pour réduire la mortalité

Course à pied, natation, vélo, squash… Si l’activité physique, quelle qu’elle soit, est une condition presque sine qua non pour espérer vivre vieux et en bonne santé, rien ne vaut la pratique régulière d’un sport d’endurance, qui renforce spécifiquement la capacité cardiorespiratoire. C’est la conclusion d’une nouvelle étude publiée dans le British Journal of Sports Medicine.

L’exercice cardiorespiratoire, la meilleure activité pour rester en bonne santé

Pour parvenir à ce constat, les chercheurs de l’Université d’Australie-Méridionale, située à Adélaïde, se sont appuyés sur une méta-analyse comprenant près de 21 millions d’observations issues de 199 études de cohorte distinctes. Ils ont constaté que “l’exercice cardiorespiratoire prolongé” était “fortement et constamment associé à une réduction du risque de mourir prématurément de quelque cause que ce soit”, et notamment de maladies telles que l’insuffisance cardiaque, la dépression, le diabète, la démence et même le cancer. Ce qui fait du cardio “probablement le type d’activité physique le plus important” pour être et rester en bonne santé, peut-on lire dans un communiqué.

Dans le détail, l’étude révèle que pour chaque augmentation de 1 MET (pour Metabolic Equivalent of Task, une mesure de la dépense énergétique associée à l’intensité d’une activité physique), soit la quantité d’énergie utilisée en position assise normale, une personne peut réduire son risque de décès de 11 à 17 %, et plus particulièrement son risque de maladie cardiaque de 18 %. À l’inverse, les personnes ayant de faibles niveaux de “fitness cardiorespiratoire” sont “beaucoup plus susceptibles de mourir précocement ou de développer des maladies chroniques” au cours de leur vie.

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