‘e-Nose’ Developed to Detect Fungi, Germs in ISS

File photo of the International Space Station (ISS) photographed by Expedition 56 crew members from a Soyuz spacecraft after undocking, Oct. 4, 2018. (Reuters)
File photo of the International Space Station (ISS) photographed by Expedition 56 crew members from a Soyuz spacecraft after undocking, Oct. 4, 2018. (Reuters)
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‘e-Nose’ Developed to Detect Fungi, Germs in ISS

File photo of the International Space Station (ISS) photographed by Expedition 56 crew members from a Soyuz spacecraft after undocking, Oct. 4, 2018. (Reuters)
File photo of the International Space Station (ISS) photographed by Expedition 56 crew members from a Soyuz spacecraft after undocking, Oct. 4, 2018. (Reuters)

A team of Russian researchers revealed that the environment inside the International Space Station (ISS) is contaminated. In their tests, they used advanced tools that can be utilized later to maintain the "health and safety" of spacecraft during long-term manned missions planned to other planets.

The new study was carried out by experts at the Russian Institute of Biomedical Problems and presented during the "Korolev's Reading" event, named after Sergei Korolev, the father of the Russian rocket industry and the leader of the Soviet Union's entry in the "Space Age".

In their experiments, the researchers said they used a new device named "e-nose" on the ISS, where it detected fungi and germs. The e-nose is capable of monitoring pollution by capturing the gases emitted by these organisms.

In their report, the researchers didn't determine the type of the germs and fungi found inside the ISS, but they are likely non-harmful species that often exist in the air.

The air test conducted in the ISS was aimed at testing the "e-nose" and its efficacy in detecting the types and sources of pollution, in order to use it in monitoring contamination levels inside spacecraft in future interplanetary missions.

Based on the results of the primary tests, the researchers said the "e-nose" has proved its reliability in detecting fungi and germs in different parts of the ISS.

They suggested the new device could be used in the future to monitor all the parts and devices in spacecraft in order to prevent germs growth onboard, or to determine the type of any detected germ so astronauts can swiftly address the problem and halt its development while the spacecraft is in deep space, far away from the Earth, where it requires prevention to guaranty the continuation of its mission.



Should You Stretch before Exercise? After? Never? Here’s What to Know

 Philadelphia Eagles stretch as they get ready during practice at NFL football training camp, Thursday, July 25, 2024, in Philadelphia. (AP)
Philadelphia Eagles stretch as they get ready during practice at NFL football training camp, Thursday, July 25, 2024, in Philadelphia. (AP)
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Should You Stretch before Exercise? After? Never? Here’s What to Know

 Philadelphia Eagles stretch as they get ready during practice at NFL football training camp, Thursday, July 25, 2024, in Philadelphia. (AP)
Philadelphia Eagles stretch as they get ready during practice at NFL football training camp, Thursday, July 25, 2024, in Philadelphia. (AP)

For many people of a certain age, high school gym class began with reaching for their toes. Then, over the years, we were told it was better to stretch after exercise.

It turns out, both those things can be true, but the differing advice has created some confusion.

Stretching can help make you more flexible, improve range of motion in your joints — and feel good. David Behm, who researches human kinetics at Memorial University of Newfoundland in St. John’s, Canada, offers this advice on when to stretch and how to do it safely:

Warm up first

It’s almost always good to stretch, but it’s better if you warm up first, said Behm, author of "The Science and Physiology of Flexibility and Stretching." He recommends a light aerobic activity such as jogging, walking or cycling for five or 10 minutes.

Follow that with some static stretching, the traditional way of reaching and holding a position (think back to that gym class). You can then do activity-specific dynamic stretching, in which you warm up the muscles with repetitive movements like leg lifts.

Behm says one minute is "the magic number" for how long to do static stretching per muscle group without fatigue.

Expand your definition of 'stretching'

Should you always stretch before exercising? If it's traditional stretching, not necessarily.

The better question, Behm says, is, "Should people increase their range of motion? Should people have better flexibility? And that is yes, because it helps prevent injuries. It helps with health. But you don’t have to stretch to achieve that."

Resistance training, for instance, can be an effective form of stretching, he said. Doing a chest press increases range of motion in your deltoids and pecs, whether with barbells, dumbbells or machines, so there is no need to stretch beforehand. Just make sure to start with a small amount of weight to warm up and then add more to train.

"You probably don’t have to do extra stretching unless you’re a gymnast, a figure skater, or even a golfer who needs a great range of motion through that swing," Behm said.

Nor do you need to stretch first if you’re going for a leisurely run. Simply start with a slow jog to warm up and then increase the pace.

Don't do it if it hurts

After exercise, "light stretching is OK, as long as you don't reach a point where you're feeling pain," Behm said. Since your muscles will be warm by that point, overdoing it makes you more likely to injure yourself.

Foam rollers can help with muscle recovery and have been shown to increase range of motion as well as stretching.

Do some static stretching before sports

If you’re playing a sport, Behm said, static stretching beforehand helps reduce muscle and tendon injury.

"If you’re going to do an explosive movement, change of direction, agility, sprint, any of these explosive activities that involve your muscles and tendons," he said, "you’re going to be stronger if you do static stretching."

People can especially get in trouble when they go back to a sport they used to play, whether it's tennis, surfing or any sort of team activity.

Also, stretch both sides equally. Lacking flexibility on one side also can lead to injury.

Sounds simple. Why all the confusion? Different studies over the years have either encouraged or discouraged stretching before exercise. Behm says that partly because some studies didn't reflect real-life conditions, or were designed with elite athletes in mind, not regular people.

"If you’re Usain Bolt, it makes a difference," said Behm. Not so much for the rest of us.