Regular physical activity is associated with a lower risk of COVID-19 infection and severity, including hospitalization and death. Thus, spending 150 minutes per week in moderate-intensity physical activity or 75 minutes in vigorous-intensity physical activity provides better protection against disease.
It follows from an analysis of grouped data published this Tuesday in the journal ‘British Journal of Sports Medicine’.
Previous research suggests that physical activity can reduce both the risk of infection and the severity of respiratory infections This is at least partly due to the fact that it strengthens the immune system.
The link between regular physical activity and the severity of COVID-19 is not well understood, but is likely to be involved. both metabolic and environmental factorsAccording to the researchers, who set out to attempt to measure the threshold of physical activity required to reduce the risk of infection and associated hospitalization and death.
They searched three research databases containing relevant studies published between November 2019 and March 2022. From the initial analysis of 291 they collected the results of 16.
about 1.9 million adults
A total of 1,853,610 adults were included in the study, of whom more than half (54%) were women. The mean age of the participants was 53 years.
Most of the studies were based on observation and were done in Brazil, Canada, South Korea, Spain, England, Iran, Palestine, United Kingdom, South Africa and Sweden.
Analysis of the pooled data showed that, in general, those that included Regular physical activity in their weekly routine had an 11% lower risk of infection with SARS-CoV-2 -The virus responsible for covid-19-, 36% fewer hospitalizations, 44% fewer serious illnesses than Kovid-19 and 43% fewer deaths due to this disease compared to those who are physically inactive.
maximum protective effect happened around 500 minutes per week Metabolic equivalent of function (MET), followed by no further improvement.
loss METs express the amount of energy (calories) expended in physical activity per minute and 500 of them are equivalent to 150 minutes of moderate-intensity physical activity or 75 minutes of vigorous-intensity physical activity.,
The researchers cautioned that the analysis included observational studies, different study designs, subjective assessments of physical activity levels, and beta and delta variants of SARS-CoV-2 rather than micron, which could undermine the findings.
But they point out that there are plausible biological explanations for what they found. Regular moderate-intensity exercise can help promote cardiorespiratory and muscular fitness along with the body’s anti-inflammatory responses, All of which may explain its beneficial effects on the severity of COVID-19.
“Our findings highlight the protective effects of engaging in adequate physical activity as a public health strategy, with potential benefits in reducing the risk of severe COVID-19,” they conclude.