>A new study found that exercise, in almost any amount, reduced people’s risks of being hospitalized or dying of covid.
FLASHBACK:
Physical Activity [PA] for immunity protection: Inoculating populations with healthy living medicine in preparation for the next pandemic
The major key points described in this commentary expand on the benefits of PA with well supported evidence demonstrating the potency of regular PA in enhancing immune function and reducing the risk, duration or severity of viral infections. The most consistent evidence suggests routine participation (~150 min per week) of moderate-intensity physical is necessary to achieve optimal immune support. However, even acute bouts of PA have shown to provide protection from viral infections, therefore supporting the notion that just moving more in the form of structured activity each day may be an important strategy for optimizing the functional integrity of the immune system to prevent or attenuate severity of infection, especially among vulnerable populations with immune-compromised conditions.
2020 Apr 9
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7195025/
Physical exercise as a tool to help the immune system against COVID-19
The benefits of exercise—regular and at appropriate intensity levels—for the immune system in respiratory infections such as COVID-19 include increased immunovigilance and improved immune competence, which help in the control of pathogens, a fact that becomes more important considering the immunosenescence and susceptibility of the elderly population to severe infection.
Other favorable effects in relation to host factors, such as prevention or reduction of overweight, increased physical and cardiopulmonary conditioning, attenuation of the systemic pro-inflammatory and pro-thrombotic states, decrease in oxidative stress, improvements in glycemic, insulinic and lipidic metabolisms, besides the enhancement of the vaccination response, also indicate how adequately physical activity can help the organism’s immune response against COVID-19.
strengthen the immune system: regular physical activity
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7387807/
Research studies have shown that a single bout of moderate exercise provides a positive boost to both the innate and the acquired immune systems. Each bout of moderate aerobic exercise instantaneously mobilizes millions of immune cells. The mobilized cells first enter the blood circulation from the spleen and the bone marrow before traveling into the lungs where increased immune defense may be required. These cells, mobilized by exercise, are primed and ready for a fight as they patrol between circulation and tissues.
Depending on the exercise intensity and duration, the number of circulating immune cells can increase by 50% to 400%.
However, this exercise-induced increase in immune cells is transient, as the immune system returns to pre-exercise levels within three hours. Consequently, sustained and regular moderate exercise is key to improving the immune system’s response to pathogens and reducing the risk of infection long-term.
https://today.bju.edu/health-insights/benefits-of-exercise-to-immune-system/