Dirty air – no reason to give upexercise

Update: February 2019

Researchers of Denmark (Journal of the American Heart
Association) claim: physical activity on contaminated
air has a better effect on the state of the heart, the week all day,
conducted indoors.

Exercise is the most important factor in maintaining and strengthening
health, including, reducing the risk of cardiovascular disease. But
polluted air increases the likelihood of developing bronchial
asthma, myocardial infarction, chronic obstructive pulmonary disease.
Scientists at the University of Copenhagen analyzed data
51,868 adult Danes in the age group of 50-65 years old, in which
The effects of air pollution, physical activity on
health, as well as the frequency of hospitalizations, deaths,
associated with myocardial infarction. During the observation period, which
was 18 years old, 6% of people from the sample had the first or repeated
myocardial infarction episode.

Результаты: люди, проживающие в населенных
points with high levels of air pollution suffer from heart attack
myocardium 17% more often, the week residents of areas with clean air. If a
at the beginning of the study, a history of people already had a myocardial infarction,
further residence in polluted air settlements
increased the likelihood of re-infarction
39%

However, the benefits of physical activity, even in
polluted places. Adults who are constantly involved in sports in
regions polluted by air, later had a myocardial infarction
21% less than in the absence of such.

The author, Nadin Kubesch, replied: “We
proved that physical activity reduces the risk of heart attack
myocardium, even among residents of regions with polluted air.
Studies confirm the evidence already available as
moderate physical activity has a positive effect on
health.

Sports, cycling and even gardening reduced the risk
myocardial infarction, as well as the risk of recurrent episode in people with
history of myocardial infarction:

  • 30 минут — 4 часа exercise уменьшали вероятность первого
    heart attack by 23%;
  • activity over 4 hours – by 28%;
  • 30 minutes workout – 4 hours a week in the open air
    reduced the risk of first heart attack by 19%, over 4 hours by 24%, and
    the risk of recurrent heart attack — by 45% and 50%, respectively.

The results of the work cannot be generalized for all regions: an experiment
was not controlled, and heavily polluted areas are not
turned on. Indisputable and the fact that sports in places with
clean air is much more useful than training on polluted
territories. However, living in large metropolitan areas or
near industrial areas should not become a reason for abandoning
sport

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