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Does Dirty Air Counteract the Benefits of Exercise?

Latest Exercise and Fitness News

Serena Gordon
Health Day Reporter

Wednesday, July 18, 2018 (HealthDay News)-Everybody Knows motion Good for you heartBut what if your only option is to run or walk on the streets of a smokey city? Will it still be rewarded in the long run?

Yes, I insist on almost 20 years of research.

“Air pollution is no excuse to skip motion.. Even in polluted areas motion Dr. Peter Mercurio, a cardiologist at Northern Westchester Hospital in Mount Kisco, NY, reviewed the findings.

This study did not cover people with respiratory illness, asthma According to the American Lung Association, outdoor exercise should be avoided, even at high levels of pollution.High air pollution can be a trigger asthma attack.

But for most healthy people, the findings suggest that: cycling, Gardening and sports can lead to a healthier heart and reduced initial risk heart attack Or heart attack Recurrence in polluted cities.

Heart disease According to researchers and the Centers for Disease Control and Prevention, it is a leading cause of death in the United States and Europe. Prevention.. Traffic-related air pollution heart attack, And death from heart attack And stroke.. In fact, exposure to air pollution can cause as many as 4.2 million deaths worldwide.

Physical activity, on the other hand, can reduce the risk of a heart attack. Active commute- walking Or biking-related to an 11% reduction in the risk of heart attack or stroke, The author of the study said.

However, other recent studies have concluded that the benefits of physical activity have been offset by the harmful effects of air pollution, the researchers added.

A new study, led by researcher Nadine Kubesch at the University of Copenhagen, included about 52,000 people born in Denmark. Participants live in Copenhagen or Aarhus and were between the ages of 50 and 64 when the survey began in the early and mid-1990s.

Volunteers answered questions about diet, motion Habits and other factors that may contribute to Heart disease Risks such as smoking, Weight, education, employment and marriage status.

Researchers gathered information on automobile air pollution (NO2) in volunteer homes by reviewing national air pollution data.

During a survey that lasted almost 20 years, it was initially close to 3,000. heart attack And 324 recurrence heart attack, Investigator found.

Sports, cycling, walking Gardening-Half the risk of a heart attack recurrence for more than 4 hours a week.Medium cycling Studies show that more than four hours a week, the risk of a heart attack recurrence was reduced by 31%.

Overall, researchers have found that playing sports is associated with a 15 percent reduction in the risk of heart attack. Bicycles were associated with a 9% reduction in the risk of heart attack, and gardening was associated with a 13% reduction in the risk of heart attack. Walking did not significantly reduce the likelihood of a heart attack. And while the study found these associations, it did not prove that exercise reduced heart risk.

Living in a highly polluted area was associated with a 17% increase in the risk of an initial heart attack and a 39% increase in the risk of a recurrent heart attack.

But air pollution Benefits of exercise, The researcher said.

Dr. Ren Holovitz, a lung specialist at Lenox Hill Hospital in New York City, said the study “just because the air quality is poor. Benefits of exercise.. Despite the pollution, exercising is still beneficial. ”

Mercurio said the survey has not yet answered many questions. Researchers have measured air pollution at home, but what about workplace exposure? He asked if the study participants lived and worked in the same area for 20 years of study.

Horowitz also said previous studies have shown that air pollution can be the cause. Arteriosclerosis, And people were advised to avoid exercising at peak times of pollution because of this.



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In cities larger than Copenhagen and Aarhus, such as New York, Los Angeles, and Chicago, the effects of pollution are likely to be stronger, Mercurio added. He said it was always a good idea to avoid pollution as much as possible.

“It’s better to exercise in a less polluted area,” he said. Therefore, if you live in a city, you may want to exercise in the park rather than on the street.

The survey was published online on July 18th. Journal of the American Heart Association..

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References

Source: Peter Mercurio, MD, President of Westchester Health Associates, Cardiologist, Northern Westchester Hospital, Mount Kisco, NY. Len Horovitz, MD, Lung Specialist, Lenox Hill Hospital, New York City. July 18, 2018, Journal of the American Heart Association,online

Does Dirty Air Counteract the Benefits of Exercise?

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