Key result
Aerobic physical activities like exercise or walking at work decreased the risk of acute MI (RRs 0.31-0.90), whereas heavy lifting at work increased the risk (RRs 1.10-1.57).
Why the study?
Does physical activity (exercise, occupational, and household work) reduce the risk of acute myocardial infarction in adults aged 45-70?
Population
4,069 adults, age 45-70 years, from Stockholm, Sweden.
Comparison
Various types of physical activity including… vs Lower levels or absence of the specific physical…
Design
Case-control
Authors
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Supports tailoring activity advice by type; leaves open causal confirmation in prospective studies.
Case-Control (n=4,069)
Does physical activity (exercise, occupational, and household work) reduce the risk of acute myocardial infarction in adults aged 45-70?
Effect estimate: RR 0.31-0.90
Aerobic physical activities such as exercise and walking at work are associated with a reduced risk of first myocardial infarction, whereas strenuous anaerobic occupational activities like heavy lifting may increase the risk.
Fransson et al. (2004) conducted a case-control in acute myocardial infarction (n=4,069). Physical activity (exercise, occupational, and household work) vs. Lower levels of physical activity was evaluated on risk of acute myocardial infarction (MI) (RR 0.31-0.90). Aerobic physical activities like exercise or walking at work decreased the risk of acute MI (RRs 0.31-0.90), whereas heavy lifting at work increased the risk (RRs 1.10-1.57).
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