Health
The mask does not impair lung function during physical activity
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Wearing a face mask can reduce the spread of COVID-19 by reducing the respiratory droplets and aerosols that erupt into the air during breathing, talking, laughing, sneezing, and coughing. However, the physical barriers created by the mask can impair the cardiopulmonary system by making it difficult to breathe, altering the flow of inhaled oxygen and exhaled carbon dioxide, and increasing respiratory distress. Caused concern. This is a medical term for shortness of breath or difficulty. Breathing especially during physical activity.
In a new study published on November 16, 2020 Annual Report of the American Thoracic SocietyA team of researchers in the United States and Canada have found that while wearing a face mask can increase the sensation of dyspnea, empirical evidence that wearing it during strenuous exercise significantly reduces lung function. Concludes that there are few.
“The activity may seem like more effort, but the work of breathing, the effects of wearing a mask on gases such as oxygen and CO2 in the blood and other gases. Physiological parameters Susan Hopkins, MD, professor of medicine and radiology at the University of California, San Diego School of Medicine, and lead author of the study, said.
“There is no evidence to support gender or age differences in the physiological response to exercise while wearing a face mask,” added Hopkins, a specialist. Exercise physiology Study of the lungs under stress.
The only exception, the authors say, may be people with severe dyspnea where increased resistance to breathing or slight changes in blood gas can cause dyspnea so great that it affects athletic performance. I have.
“In such cases, these individuals may feel too uncomfortable to exercise, and it should be discussed with their doctor,” Hopkins said. “But we must also consider the fact that these individuals are at great risk if they become infected with COVID-19.”
Researchers came to a conclusion after all known reviews Scientific literature Publications examining the effects of various face masks and respiratory load devices on physiological and perceptual responses Physical activity.. These studies assess multiple factors such as respiratory activity (quantified energy consumed in inhalation and exhalation), arterial blood gas, effects on muscle blood flow and fatigue, cardiac function, and blood flow to the brain. Did.
For healthy individuals, the effect of wearing a mask on these physiological markers was minimal, regardless of the type of mask and the degree of exercise. The authors also stated that age does not play a significant role in adulthood. Gender differences were considered insignificant.
“Wearing a face mask can be uncomfortable,” Hopkins said. “Respiratory resistance may increase slightly. You may re-inhale warm, slightly concentrated CO2 air. Also, if you are exercising, the mask will heat your face and make you sweat. there is.
“But these are sensory perceptions. They do not affect the cardiopulmonary function of healthy people. Therefore, the use of masks can increase dyspnea, which should be weighed. Risk reduction Infecting with COVID-19, knowing that physiology is essentially unchanged. ”
Susan R Hopkins et al., Face mask and cardiopulmonary response to health and illness physical activity, Annual Report of the American Thoracic Society (2020). DOI: 10.1513 / AnnalsATS.202008-990CME
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University of California, San Diego
Quote: Exercise without doing anything: The mask does not impair lung function during physical activity (November 17, 2020). Obtained November 17, 2020 from https://medicalxpress.com/news/2020-11-masks-dont-impair-lung-function. html
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