After a short time, so the common Information, are dropped from Infected exhaled SARS-CoV-2 virus to the ground. On this finding, the recommendation to keep a safety distance of one and a half to two metres of other people in order to avoid droplet infection is based. However, as it is in sports, so if you are standing still, but in motion? This is currently a much-debated topic. In contrast to other countries, in which the measures are considerably more restrictive, is an individual sport in Germany is allowed as part of the health prevention continue. A maximum of two athletes or athletes may train together, but should maintain a certain distance – and it is precisely here that a new study by the universities of Leuven (Belgium) and Eindhoven (the Netherlands) comes in.
Under the direction of Bert Block, a Professor of building physics and aerodynamics at the two universities studied, a group of scientists, how much athletes COVID-19-can be exposed to pathogens when they move in the wind shadow of another athlete. Social Distancing v2.0 the investigation is.
The researchers observed the Ejection of saliva particles during different movements at different speeds (walking and Running). They changed also the Position of the following Gehers or runner: Time to moved side to side, then diagonally in a row, and finally directly one after the other. Such models are typically used to analyze athletic performance, and to improve, as it has in many sports and disciplines to have a positive effect, as you move the air flow from the front a woman or a man. In times of Corona the is not recommended, however, to.
20 Meter distance at a higher pace
“not to push When running or Cycling and exhales, numerous micron-sized droplets,” explains Block, the DW on the phone. In his study you’ve made the invisible droplets with a special light to be visible. “We have let two people go and race to see how far the droplets are actually passing in the direction of the other Person. And if it is too close to the other Person, you get the droplets to the face.” Thus, a Transmission of the Virus would be possible, provided the advance Person is infected.
Block and his colleagues therefore conclude that the 1.5-Meter rule is not enough in the Sport to protect yourself from a COVID-19 infection. Instead, they recommend when you Go in the same direction by a distance of at least four to five meters, when Running and slow Cycling of ten meters, and move faster, even at least 20 meters.
The least dangerous, it is, according to the study, when athletes are moving at the same pace, side by side, because their droplet cloud then lands behind them. Even diagonally, the risk of particles from the air that we breathe in air in front of him, moved lower. The risk of contamination is greatest when the rear Person is directly in the wind shadow of the front.
Block recommends, therefore, long before it overtakes a Person to move sufficiently far to the side, not in the wind shadow and the droplet cloud for the other device. When he was with the bike in his Belgian home, the scientists observed a different tactic: “a Lot of people to keep the air, if you overtake someone because you are afraid of the Virus.” Maybe this is exaggerated a bit, says Block, but similar to you not out of a glass wool, to drink, from an infected Person have been drinking, “they also don’t want saliva droplets, inhalation, emitted from a other Person”.
Not a wise decision in France
blocking intention of his study was not, by the way, Outdoor sports restrict, but to give, on the contrary, athletes, who want to continue to push outside of sports, a certain degree of security. In Belgium there had been a hot debate about how far cyclists are allowed to from home remove. Block and many others argued against any limits. A view of the the government was finally convinced. “As long as you don’t move close to another Person, there is no risk,” says Block.
France’s decision to limit the allowed Radius for movement in the open on a Kilometer to the place of residence and a maximum of one hour of the day, the Belgian critical: “This decision was not very smart. Namely, it means that in the cities of all the people to train on a very small area and probably very close to each other to move. And that is the opposite of what one should do. You should let the people go – the best in the country, so that you can keep a distance and not too many other people to meet.” Bert Block et al./Eindhoven University of technology & KU Leuven
the Block itself is driving a lot of Bicycle, avoids, however, currently, cycle lanes, and prefer to major roads, on which, thanks to the nightlife restrictions, at the moment not much is going on. “I’ve never in my life so quiet and so alone rode a bike as in these weeks and months,” he says.
- Corona-the crisis in the News Ticker of FOCUS Online
football: clouds of Thousands of micro-droplets
Based on the national football League and other contact sports, see Block, no way to protect players from each other, should actually be held back in games. “I can make no statement about the risk of infection, but we can be sure that people who exert a strong, cloud of Thousands of micro-emit droplets,” says Block. “Even if the football players held 1.5 meters distance from each other, would the saliva droplets of the opponents and other players get in your airway, on your face and on your body. And that is exactly what you want to avoid with the 1.5-Meter distance rule.”
A permit for football games, Block holds, therefore, difficult, if only because some might think: If football allowed to play, then I have to regulate the distance but not follow. The Belgian scientists say without Regret: “I think, if you want to use the 1.5-Meter rule in the coming weeks and months consistently, then that means, unfortunately, that many sports will be events possible.” “Don’t know if this is Serious”: Laschet drives Hayali in the ZDF-Interview, FOCUS Online/Wochit “don’t Know if this is Serious”: Laschet drives Hayali in the ZDF-Interview
*The post “New study of the Corona: The sports are published up to 20 meters safety distance required” is from Deutsche Welle. Contact with the executives here.
