RT info:eu-repo/semantics/article T1 Respiratory flows as a method for safely preventing the coronavirus transmission (COVID-19) A1 Córdova Martínez, Alfredo A1 Latasa, Iban K1 COVID-19 K1 Enfermedades infecciosas K1 Epidemias K1 Virus K1 Respiratory flow K1 Safety distance K1 2420 Virología K1 2412 Inmunología AB The spread of CoV-2 occurs mainly by respiratory droplets. Its dispersion depends on several factors: viscoelasticity of fluid, ventilation, evaporation rate, exhalations, sneeze or cough. At moment, the preventive distance to avoid the contamination has been established in 1–2 m. We believe that it is necessary to review this aspect, because the respiratory flows change with the intensity of physical activity. The ventilatory response can be evaluated in terms of ventilatory demand or ventilatory efficiency. During maximal effort tests, athletes mobilize an extraordinary amount of air arriving to 150/200 L/min. The respiratory volume follows increase in linear progression during the test in function of power developed. When the air volume is increased 10 times, we think that the distance should be around 6–7 m. PB Elsevier SN 1886-6581 YR 2020 FD 2020 LK https://uvadoc.uva.es/handle/10324/57770 UL https://uvadoc.uva.es/handle/10324/57770 LA eng NO Apunts: Medicina de l'esport, Vol. 55, Nº 206, 2020, págs. 81-85 NO Producción Científica DS UVaDOC RD 08-ago-2024