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The increase in physical activity is beneficial for cardiovascular health as it brings positive changes in inflammatory status, hemostatic factors, blood lipids and viscosity as well as blood flow coronary.
Overall, it reduces the risk of heart disease, the number one killer in the country for both men and women.
But what about if there are environmental factors that can contribute to the risk of cardiovascular disease while trying to prevent it?
In the air, there is the question of whether this could represent a risk of cardiovascular disease for those involved in outdoor physical activity.
According to researchers, air pollution accounted for 7.6% of all deaths worldwide. The underlying cause of these deaths related to air pollution was inflammation and oxidative stress.
"Physical activity increases the intake of air pollution by increasing the inhaled dose of air pollutants due to the high minute ventilation induced by exercise. Researchers from Denmark, Germany, and Spain wanted to know if the dangers of air pollution that increase the risk of cardiovascular disease negate the beneficial benefits of exercise outdoor physics.
The researchers reported their findings in the Journal of the American Heart Association.
Evaluating 51,868 adults aged 50 to 65 over a 17.7-year period, researchers focused on the levels of physical activity for outdoor exercise. like various sports, cycling, walking and gardening. They also observed nitrogen dioxide (NO2) caused by the circulation.
At the end of 17.7 years, researchers observed a total of 2,936 heart attacks, followed by 324 recurrent heart attacks.
in an area where exposure to NO2 was 18.9 micrograms per cubic meter of air, well below the exposure limits established by the European Union.
As a result, people in high-risk areas were 17% more likely than those exposed in areas with low exposure. Restricting outdoor physical activity is not the solution
Although there are risks of air pollution by outdoor activities, the researchers calculated that average exposure to NO2 heart attack.
In particular, whether air pollution is low or high, moderate cycling reduces the risk of heart disease by 31 percent, thus showing the consistent benefits of physical activity, provided [19659002] For individuals living in areas with higher NO2 concentrations, cycling was the most powerful protector against these pollutants, the researchers note in the paper. percent less risk of heart attack. Even with poor air quality, when participants practiced a sport, pedaled, walked and walked for four hours each week, the risk of heart attack was reduced by 58%.
"Our study shows that physical activity even during exposure to air Nadine Kubesch, senior author and researcher at the University of Copenhagen, said that pollution, in cities with levels similar to those in Copenhagen, can reduce the risk of heart attack. "Our research supports existing evidence that even moderate levels of regular physical activity, such as active commuting, are intense enough to achieve these health benefits."
Individuals are more susceptible to heart attacks "The long-term benefits of physical activity to prevent the development of MI in participants in good health and middle age, and the possibility of effective disease control in patients with previous MI, can outweigh the risks associated with increased residential exposure to air pollution related to the circulation during the 39, physical activity, "concludes the team in his article.
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