Never miss a story

Get subscribed to our newsletter


×
The more intense the exercise, the more aerosols are produced. Pixabay

High-intensity exercise produces more respiratory aerosols that can be harmful and aid in the transmission of Covid-19, and using a high-efficiency particulate air (HEPA) device can effectively filter out the aerosols, finds a study.

Aerosols are a common component of breath, and a typical mode of transmission for respiratory viruses like Covid-19 to spread to other people and surfaces.


Follow NewsGram on Facebook to stay updated.

The researchers from Mayo Clinic in the US set up a special aerosol laboratory in a plastic tent with controlled airflow. Two types of laser beam particle counters were used to measure aerosol concentration at the front, back, and sides of a person riding an exercise bike. Eight exercise volunteers wore equipment to measure their oxygen consumption, ventilation, and heart rate.

The aero-solution concentrations increased exponentially throughout the test. Specifically, exercise at or above 50 percent of resting heart rate showed significant increases in aerosol concentration, as per the findings published online in CHEST.


Exercise generates millions of respiratory aerosols. Pixabay

“In a real sense, I think we have proven dramatically what many suspected? That is why gyms were shut down and most exercise testing laboratories closed their practices. Exercise testing was not listed as an aerosol-generating procedure prior to our studies because no one had specifically studied it before,” said Thomas Allison, Director of Cardiopulmonary Exercise Testing at Mayo Clinic in Rochester.

“Exercise generates millions of respiratory aerosols during a test, many of size reported having virus-carrying potential. The higher the exercise intensity, the more aerosols are produced,” Allison said.

ALSO READ: Regular Exercise Can Improve Your Chances Of Beating Covid19

In a follow-up study, the team found that a HEPA filter could mitigate the aerosols generated during exercise testing by filtering them out of the air immediately after they came out of the subject’s mouth.

“We found that 96 percent plus or minus 2 percent of aerosols of all sizes generated during heavy exercise were removed from the air by the HEPA filter. As a result, we have been able to return to our practice of performing up to 100 stress tests per day without any recorded transmission of Covid in our exercise testing laboratories,” Allison said. (IANS/KB)


Popular

IANS

Union Finance Minister Nirmala Sitharaman on Saturday asked the Directorate of Revenue Intelligence (DRI) to prevent dumping of toxic wastes in India.

Union Finance Minister Nirmala Sitharaman on Saturday asked the Directorate of Revenue Intelligence (DRI) to prevent dumping of toxic wastes in India. Speaking at an event to celebrate DRI's 64th foundation day, Sitharaman lauded DRI's compact strength of about 800 officers for their relentless efforts despite the imminent risks. The Finance Minister stated that the officers may be keeping a low profile, but they are acting like the frontline defence forces, doing spectacular work in safeguarding the economic frontiers of the country. "The recent smuggling attempts of huge quantities of narcotics, gold, red sanders, ivory, cigarettes etc. unearthed by DRI were appreciated by the Finance Minister," the Ministry of Finance said in a statement.

"Sitharaman said that the message through such enforcement actions should be such that these acts of brazen attempts at smuggling are nipped in the bud," the statement added. The Finance Minister also said that better coordination among the law enforcement and intelligence gathering agencies and sharing of actionable intelligence are the way forward in protecting the frontiers of the country more efficiently. "Sitharaman also asked the DRI to focus on interdicting dual use technology items as well as preventing the dumping of toxic wastes in our country," the statement said. (IANS/ MBI)


Keep Reading Show less
Photo by Brandon Romanchuk on Unsplash

Tech giant Amazon has expanded the sound detection capabilities of Alexa along with more features.

Tech giant Amazon has expanded the sound detection capabilities of Alexa along with more features. Alexa can now identify the sounds of running water and appliances beeping, reports Android Central. This means users can set up an Alexa routine to notify themselves when the washer beeps to indicate that laundry is finished, the report said.

When Alexa detects that the faucet has been left open, it will send users a notification as well so they can take appropriate action, it added. Amazon previously said at its event in September that it would add the ability to programme Alexa to recognise custom sounds, but that feature has yet to arrive. Having said that, the two new sound detection capabilities not only help users save energy, but they also make it easier to avoid paying for unnecessary charges on your home utilities, the report said.

The retail giant has also announced ultrasound motion detection, which will allow you to set up "Occupancy Routines" on additional Echo devices. This feature allows your smart speaker to detect nearby motion and initiate a routine, such as turning on the lights. It is compatible with many of the best Alexa speakers including the 4th-gen Echo, Echo Dot and Echo Dot with Clock. (IANS/ MBI)


Keep Reading Show less
Rawpixel

Comforting Christmas cocktails help you enjoy the celebrations and get into the festive spirit.

By Olivia Sarkar
It's the holiday season, which means it's time to be merry! As the month of December approaches, we're all in a festive mindset. With Christmas just around the corner, there will be plenty of parties and get-togethers with friends and family.

Comforting Christmas cocktails help you enjoy the celebrations and get into the festive spirit. The Leela Palaces, Hotels, and Resorts offer distinctive cocktails ranging from Hot Toddies to Decadent Egg Nogs. Sit back and enjoy one martini at a time to make the festive season a little brighter.

Dirty Chai Eggnog:

Eggnog is a Christmas favorite that is accustomed to toasts for good health and prosperity. It is an American tradition that has spread around the world. Historically, it has been made using eggs, milk, and alcohol. Our culinary artists have given an Indian twist to this winter drink, making it quintessentially desi!



Recipe:

30 ml Bourbon
30 ml Baileys
90 ml Hot milk tea
Whole Spices
Sweet cream foam to top up

Garnish:
Cinnamon powder and star anise.

Keep reading... Show less