Increased Physical Activity Post–Myocardial Infarction Is Related to Reduced Mortality: Results From the SWEDEHEART Registry

Background With increasing survival rates among patients with myocardial infarction (MI), more demands are placed on secondary prevention. While physical activity (PA) efforts to obtain a sufficient PA level are part of secondary preventive recommendations, it is still underutilized. Importantly, th...

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Main Authors: Orjan Ekblom, Amanda Ek, Åsa Cider, Kristina Hambraeus, Mats Börjesson
Format: Article
Language:English
Published: Wiley 2018-12-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.118.010108
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author Orjan Ekblom
Amanda Ek
Åsa Cider
Kristina Hambraeus
Mats Börjesson
author_facet Orjan Ekblom
Amanda Ek
Åsa Cider
Kristina Hambraeus
Mats Börjesson
author_sort Orjan Ekblom
collection DOAJ
description Background With increasing survival rates among patients with myocardial infarction (MI), more demands are placed on secondary prevention. While physical activity (PA) efforts to obtain a sufficient PA level are part of secondary preventive recommendations, it is still underutilized. Importantly, the effect of changes in PA after MI is largely unknown. Therefore, we sought to investigate the effect on survival from changes in PA level, post‐MI. Methods and Results Data from Swedish national registries were combined, totaling 22 227 patients with MI. PA level was self‐reported at 6 to 10 weeks post‐MI and 10 to 12 months post‐MI. Patients were classified as constantly inactive, increased activity, reduced activity, and constantly active. Proportional hazard ratios were calculated. During 100 502 person‐years of follow‐up (mean follow‐up time 4.2 years), a total of 1087 deaths were recorded. Controlling for important confounders (including left ventricular function, type of MI, medication, smoking, participation in cardiac rehabilitation program, quality of life, and estimated kidney function), we found lower mortality rates among constantly active (hazard ratio: 0.29, 95% confidence interval: 0.21–0.41), those with increased activity (0.41, 95% confidence interval: 0.31–0.55), and those with reduced activity (hazard ratio: 0.56, 95% confidence interval: 0.45–0.69) during the first year post‐MI, compared with those being constantly inactive. Stratified analyses indicated strong effect of PA level among both sexes, across age, MI type, kidney function, medication, and smoking status. Conclusions The present article shows that increasing the PA level, compared with staying inactive the first year post‐MI, was related to reduced mortality.
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spelling doaj.art-74c01095e52a4c20b6b17fcbeee7059b2022-12-21T21:09:52ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802018-12-0172410.1161/JAHA.118.010108Increased Physical Activity Post–Myocardial Infarction Is Related to Reduced Mortality: Results From the SWEDEHEART RegistryOrjan Ekblom0Amanda Ek1Åsa Cider2Kristina Hambraeus3Mats Börjesson4Åstrand Laboratory of Work Physiology The Swedish School of Sport and Health Sciences Stockholm SwedenÅstrand Laboratory of Work Physiology The Swedish School of Sport and Health Sciences Stockholm SwedenDepartment of Neuroscience and Physiology Sahlgrenska Academy & Sahlgrenska University Hospital Gothenburg SwedenDepartment of Cardiology Falun Hospital Falun SwedenDepartment of Neuroscience and Physiology Sahlgrenska Academy & Sahlgrenska University Hospital Gothenburg SwedenBackground With increasing survival rates among patients with myocardial infarction (MI), more demands are placed on secondary prevention. While physical activity (PA) efforts to obtain a sufficient PA level are part of secondary preventive recommendations, it is still underutilized. Importantly, the effect of changes in PA after MI is largely unknown. Therefore, we sought to investigate the effect on survival from changes in PA level, post‐MI. Methods and Results Data from Swedish national registries were combined, totaling 22 227 patients with MI. PA level was self‐reported at 6 to 10 weeks post‐MI and 10 to 12 months post‐MI. Patients were classified as constantly inactive, increased activity, reduced activity, and constantly active. Proportional hazard ratios were calculated. During 100 502 person‐years of follow‐up (mean follow‐up time 4.2 years), a total of 1087 deaths were recorded. Controlling for important confounders (including left ventricular function, type of MI, medication, smoking, participation in cardiac rehabilitation program, quality of life, and estimated kidney function), we found lower mortality rates among constantly active (hazard ratio: 0.29, 95% confidence interval: 0.21–0.41), those with increased activity (0.41, 95% confidence interval: 0.31–0.55), and those with reduced activity (hazard ratio: 0.56, 95% confidence interval: 0.45–0.69) during the first year post‐MI, compared with those being constantly inactive. Stratified analyses indicated strong effect of PA level among both sexes, across age, MI type, kidney function, medication, and smoking status. Conclusions The present article shows that increasing the PA level, compared with staying inactive the first year post‐MI, was related to reduced mortality.https://www.ahajournals.org/doi/10.1161/JAHA.118.010108mortalityphysical exerciseregistry
spellingShingle Orjan Ekblom
Amanda Ek
Åsa Cider
Kristina Hambraeus
Mats Börjesson
Increased Physical Activity Post–Myocardial Infarction Is Related to Reduced Mortality: Results From the SWEDEHEART Registry
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
mortality
physical exercise
registry
title Increased Physical Activity Post–Myocardial Infarction Is Related to Reduced Mortality: Results From the SWEDEHEART Registry
title_full Increased Physical Activity Post–Myocardial Infarction Is Related to Reduced Mortality: Results From the SWEDEHEART Registry
title_fullStr Increased Physical Activity Post–Myocardial Infarction Is Related to Reduced Mortality: Results From the SWEDEHEART Registry
title_full_unstemmed Increased Physical Activity Post–Myocardial Infarction Is Related to Reduced Mortality: Results From the SWEDEHEART Registry
title_short Increased Physical Activity Post–Myocardial Infarction Is Related to Reduced Mortality: Results From the SWEDEHEART Registry
title_sort increased physical activity post myocardial infarction is related to reduced mortality results from the swedeheart registry
topic mortality
physical exercise
registry
url https://www.ahajournals.org/doi/10.1161/JAHA.118.010108
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AT amandaek increasedphysicalactivitypostmyocardialinfarctionisrelatedtoreducedmortalityresultsfromtheswedeheartregistry
AT asacider increasedphysicalactivitypostmyocardialinfarctionisrelatedtoreducedmortalityresultsfromtheswedeheartregistry
AT kristinahambraeus increasedphysicalactivitypostmyocardialinfarctionisrelatedtoreducedmortalityresultsfromtheswedeheartregistry
AT matsborjesson increasedphysicalactivitypostmyocardialinfarctionisrelatedtoreducedmortalityresultsfromtheswedeheartregistry