Soderhamn

Researchers are studying the relationship between different levels of physical activity, sedentary time, and health outcomes in patients who have had a myocardial infarction (heart attack). The main goal is to understand how activity measured by accelerometers relates to clinical outcomes and how changes in physical activity over time affect these outcomes after a heart attack. The study plans to include about 4000 patients over two years who have experienced a myocardial infarction. Participants will wear an accelerometer device attached to their right hip during waking hours for seven consecutive days at two follow-up visits: once at 2 months and again at 1 year after hospital discharge. They will also keep a paper diary to record device wear time and working hours, then return both by mail. This process is repeated at the 1-year follow-up. During the study, participants attend follow-up visits where their physical activity data are collected and analyzed. Researchers will explore how different intensities of activity relate to major adverse cardiovascular events one year after the heart attack. Safety and adherence are monitored by collecting activity diaries and accelerometer data. Participation spans from hospital discharge through at least one year after the event to track outcomes and physical activity changes over time.