COVID-19 outbreak has been dogged the whole world and besides economic damage; this new virus has been collapsing health units worldwide. Many people have been infected and died every day and so far, there are no vaccines or drugs approved to fight off COVID-19. In this sense, many countries have adopted strategies to avoid virus spread during the quarantine. Social isolation has caused psychological impacts and changes in people's routine, thus physical exercise emerges as an alternative to decrease cognitive problems developed by people during the quarantine. The use of technology to guide people during physical education classes has become a great strategy for people who cannot leave their homes. Besides, technology can insert people in an immersive environment increasing their interaction, merriment, improving their immune and cardiovascular systems. Physical education teacher must be considered an essential health professional during this pandemic period because they can guide and stimulate individuals to practice physical exercise routinely, in order to keep and improve their health.

SUMMARY Currently, many people have been infected by the Coronavirus disease (COVID-19) and presented cardiorespiratory symptoms caused mainly by the host immune system response and respiratory tract inflammation. So far, there is no effective treatment to fight off COVID-19 and, despite many daily speculations about new treatments and vaccines, in this article, we discuss the effectiveness of a cheap and scientific proven technique to treat and prevent several diseases. Many studies have shown the benefits of physical exercise in individuals who have practiced it routinely. This approach is a great strategy to improve people's cardiorespiratory capacity, inflammation system, and immune response. Due to the quarantine period, the practice of physical exercise at home can also be used to fight off COVID-19 and must be inserted into people's routines.