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“According to a recent study, people with medium or high physical capacity have half the risk of hospitalization for coronavirus. For now, your actions are the best vaccine“And Marcos Vázquez, creator of the Revolutionary Fitness blog, is right. We need to think more about what we can do to protect ourselves.
And it is that, andn a scenario full of uncertainties and highly changeable in which full light is not shed on the biological mechanisms of SARS-CoV-2, and in the absence of vaccines and effective treatments against the disease it causes, COVID-19, It is necessary to focus preventive efforts on those aspects that we can control and that can compromise the proper functioning of the immune system and the body in the fight against infectious diseases.
This is also certified by the study that Vázquez referred to earlier and which was recently published in “Mayo Clinic Proceedings”. The work signed by experts from Henry Ford Hospital in Detroit (USA) concludes that themaximum exercise capacity determined by a stress test prior to SARS-CoV-2 infection is independently and inversely associated with the likelihood of hospitalization of COVID-19. No more, no less.
The researchers analyzed data from those patients who had undergone a stress test in hospital between 2016 and 2020 and focused on those who were positive for COVID-19, 246 in total. Of these patients, 36% (89) were hospitalized, which corresponded precisely to those with the worst results obtained in the stress test in parameters such as lung capacity, resistance to fatigue or in the electrocardiogram data. Eventually 1% of these patients died.
Similarly, the subjects who were finally selected had an average age of 59 and had problems with high blood pressure, high cholesterol, diabetes, or obesity. Respiratory viral infections, such as that caused by SARS-CoV-2, cause a systemic inflammatory response which places a substantial load on the cardiopulmonary system. Greater cardiorespiratory fitness (e.g., exercise capacity) reflects greater cardiopulmonary reserve and the body’s ability to respond to insult, as well as an inverse relationship to the risk of adverse outcomes among people diagnosed with chronic disease.
Fitness is moderated by age, genetics and the presence of chronic diseases and is strongly influenced by physical activity, especially structured physical training. In addition to improving fitness, cardio-respiratory training improves immune function, reduces low-grade inflammation, and reduces the risk of respiratory infections.
Thus, the work of American experts proves this Regular exercise, along with other important aspects such as nutrition, rest or stress management, has a decisive impact on our immune system and in the defense capacity against infections such as COVID-19, which unfortunately we are still far from fully understood. So, today, the best vaccine, as Marcos Vázquez points out, are the leagues over which we have minimal control.
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