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Sep 6, 2022
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Exercise may reduce the risk of contracting COVID-19

This is stated in a pooled analysis published in the British Journal of Sports Medicine. It is enough to spend at least 150 minutes of moderate-intensity exercise or at least 75 minutes of intensive exercise weekly.

Previous research suggests that physical activity can reduce both the risk of infection and the severity of respiratory infections, at least in part due to its ability to boost the immune system.

The link between regular physical activity and COVID-19 severity is poorly understood but likely involves both metabolic and environmental factors, the researchers say. They attempted to quantify the physical activity threshold that may be needed to reduce the risk of infection.

The researchers searched three major databases for relevant studies published between November 2019 and March 2022 and combined the results.

A total of 1,853,610 adults participated in the studies, just over half of whom (54%) were women. The average age of the participants was 53 years. Most of the studies were observational and were conducted in South Korea, England, Iran, Canada, Great Britain, Spain, Brazil, Palestine, South Africa and Sweden.

An analysis of the pooled data showed that overall, those who included regular physical activity in their daily routine had an 11% lower risk of contracting SARS-CoV-2, the virus responsible for COVID-19.


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