How do astronauts do sports in space?

Unlike walking on the ground on their legs, astronauts rely mainly on their arms in the capsule. In order to facilitate astronauts in the capsule, many special handrails are installed on the movable bulkhead, and astronauts usually rely on these handrails or other special handrails to stabilize their bodies.

In order to maintain the normal "functioning" of various organs and tissues in space, the astronauts of the International Space Station must perform daily physical exercises, such as riding bicycles or pedaling on "moving carpets". Without the constraints of Earth's gravity, astronauts do not move as freely in space as they do on Earth. They need to attach themselves to the station's equipment with ropes and wear special pants to circulate blood from head to toe in order to achieve the same physiological effect as exercising on Earth.

These exercises can basically maintain the normal "operation" of the heart, arteries and other organs, but they cannot prevent bone atrophy. According to statistics, astronauts lose 1 to 10 bones during a space trip, and these bones usually regenerate on Earth for a much longer period than in space. Under normal circumstances, astronauts should insist on at least two hours of exercise every day.

It is necessary to have relevant safety knowledge training, but also to learn relevant operations, practical operations, relevant drills, and knowledge learning in all aspects on the ground, etc.

Weightlessness exercises, physical training, improving the flexibility of the nerves, mental health interventions, learning science. This is all very important.

1. Physical training, to enhance their own physique, gymnastics, ball games, trampoline, swimming, etc. 2. Knowledge training, to learn aerodynamics, flight dynamics, geophysics, meteorology, etc., but also to master spacecraft control, maintenance and repair technology 3, environmental simulation training, focus on more than half a year for specific training for the task.

They need to go through a lot of exercise and training, they must exercise endurance, they need to simulate the environment of survival in weightlessness, they also need to carry out flight simulator training, so that they can master the control technology, and they also need to master the training about flight during the flight, which can improve their resistance to noise, only in this way can they ensure that they can be safe in space, and finally they can return to land safely.

Astronauts are active in space, generally with cosmic rays, and weightlessness drifting away.

Explore space. Astronauts, in particular, refer to Chinese spacecraft into spaceflight, and are also called astronauts abroad. There are two types of astronauts, professional and non-professional, generally divided into pilots, mission specialists and payload specialists, or commanders, pilots, shipboard engineers and flight engineers.

Recently, astronaut tourists for tourism purposes have appeared.

Astronauts are pioneers in the path to space, and being an astronaut requires high dedication, a high level of knowledge, extraordinary work ability, excellent environmental endurance, good psychological quality and healthy physical conditions.

Investigate the effects of weightlessness on the human body, microgravity experiments, life science and biotechnology experiments, space station maintenance, satellite launches, space exploration, and other purposes. An astronaut, also known as an astronaut, astronaut, astronaut, and astronaut, refers to a person who has made a career out of or has flown in space.

The criteria for determining space flight are not completely uniform, and people in the United States who travel at altitudes of more than 80 kilometers are called astronauts.

Astronauts come from at least 32 countries, and astronauts from other countries need to cooperate with the former Soviet Union, Russia, the United States, and China to complete manned space missions.

Space refers to the space beyond the Earth's atmosphere, and the boundary between the atmosphere and space: 100 kilometers above the Earth's sea level is the dividing line.

The universe is the most ordinary person, but the meaning of the representation is not to change the sky and everything that constantly rotates. The universe as we know it is only the appearance of the universe and the theory that exists on paper. There is a dangerous danger in the real universe that only those who truly own the universe know about.

Many people are unaware of the panic from Earth to space, even in a cramped cabin, with a companion. You can take yourself with you for the first time, go abroad, and leave home for the first time. No matter how much it does, then the people are always not enough.

What is the mortal danger of astronauts in space? Space decompression is one of the dangers.

The unknown is our fear itself, why aren't these astronauts afraid? Today, it's still not too safe to pursue a career. Leaving the role of the history book is only part of the success of those who try, and there are so many people who have been given life in the development of science that they will be forgotten forever.

They have experienced despair of the throne before, and we may never know.

1.As soon as it unexpectedly breaks away from the female carrier: humanity will be "frozen into a pot" in space.

Space is a space devoid of particles, and unlike dusty dust in the air, astronauts appear in a space without protection, and without heat transfer from gaseous particles, they will freeze directly. The space environment is a good body insulating material. It warms the body in a thermos.

2. In zero gravity, burn alive.

If there is a fire in space, you will never see the usual burning flames on Earth, only the burning, confused "still" flames. But they also spread to many flammable installations. The space chamber is quickly filled with toxic air, and in the event of an air fire, the astronaut could be suffocated by the gas or through this strange zero-gravity flame.

3. Death in space, the most desperate way: stop on other planets and starve to death.

If an astronaut lands on a spacecraft on another planet and the spacecraft's engines suddenly "fail", then you will be trapped on this planet forever and never return to Earth. Maybe not starved initially, or thirsty.

4. Bacteria from the infected unknown universe die.

When an astronaut arrives in an alien world, it becomes infected with a mysterious alien virus, or a terrifying alien bacterium, that human spacecraft brings back to Earth, leading to anthropogenic extinction. Scientists believe that some other stars in the solar system are perfectly suitable for breeding foreign microorganisms, such as Mars or jupitar oceans, because the human immune system has never encountered them. Therefore, humans do not have any innate immunity to these bacteria.

5.Space catastrophes are most likely: sudden space clothing One of the greatest dangers for astronauts is damage to the spacecraft or space clothing, which will lead to a rapid loss of pressure.

Because we live in small lives, we also adapt to the pressures of the planet. If you suddenly appear in space, the water in the human body will disappear immediately. That is, moisture in the eyes and mouth.

Lack of oxygen causes the body to lose consciousness within 10 seconds and die within one to two minutes.

If they do it, they may fall into space, which is very dangerous, and they may die and not be able to hold out for a minute. Because the body is exposed to space all the time, there is no air in it, and the temperature is very low, so there will be a lack of oxygen.

If they are active, they may fall into space, and if they are for a long time, they may die, and they will not be able to last a minute, because their bodies are exposed to space all the time, there is no air in it, the temperature is very low, and many rays are finally evaporated and died.

Infected Unknown Cosmic Bacteria Die: When an astronaut arrives in an alien world, it becomes infected with a mysterious alien virus, or a terrifying alien bacteria.

Damage to spacecraft or space clothing, which will lead to rapid pressure loss, space decompression, excessive pressure that cannot be withheld.

You will be hurt by some unknown things at any time, you will not be able to eat what you want to eat, you will be suffocated by lack of oxygen, you will be very traumatized psychologically, and it will be difficult for you to adapt to life on earth when you return to Earth.

Many of the different living habits of people on the earth are caused by environmental factors, such as people in areas with high humidity eating chili peppers and living in stilted buildings to prevent moisture, and people in mountainous areas walking with heavy baskets. The space environment is very different from the environment on the surface of the earth, especially the weightless environment during the orbital flight of spacecraft, like a twisted mirror, which completely changes all the living habits on the ground, causing the difficulty of space life.

In a weightless environment, ordinary things like eating and drinking require a lot of norms and exquisiteness. The food that enters the mouth should be chewed with the lips closed to avoid being blown out of the mouth by the exhaled air flow and floating in the air, causing confusion and damage to the equipment. Drinking a drink in the mouth does not automatically flow into the stomach under the action of gravity like on the ground, and always needs to be swallowed forcefully.

Therefore, in the early days of manned spaceflight, food and drink were packed in a hose and squeezed into the mouth like toothpaste. However, due to the fact that the shape and color of the food cannot be seen, the fragrance cannot be smelled, and the sense of taste is easy to be out of balance in a weightless environment, the packaged food and beverages in this way cannot arouse the appetite and are not welcomed by astronauts. Later, there were carton cubes, compressed foods, slightly sticky canned foods, and dehydrated bagged foods, which could be placed on a plate and eaten with a knife and fork as if they were on the ground.

It is very convenient to sleep in a weightless environment, horizontally and vertically, and you can sleep in the air, but the air flow will squeeze people into one place, and the occasional force will cause people to crash into bulkheads and instruments. For safety, you should sleep in a sleeping bag on a fixed bed board or bulkhead with your arms in the sleeping bag.

In a weightless environment, the head and limbs may feel separated from the body, which can cause panic in the haze. People who are used to keeping their arms outside their sleeping bags should also be tied with ropes so as not to inadvertently touch the switch of the instrument. In addition, it is best to bring an eye mask and earplugs so that the rapidly alternating rhythm of day and night and the noise generated by the instruments and equipment do not interfere with sleep.

Due to the difference in gravity and space, astronauts may be physically uncomfortable and also have to maintain a high level of concentration.

You need to keep yourself safe and well-equipped.

In particular, the weightless environment during the orbital flight of the spacecraft is like a twisted mirror, which completely changes all the living habits on the ground, causing the difficulty of space life.

The things that astronauts need to pay attention to when flying in space must have been rehearsed.

You need to wear an oxygen mask to replenish your oxygen.

It's definitely all been rehearsed.

There are so many things to pay attention to, and the most important thing is safety.

It should be a matter of oxygen and safety.

Equipment needs to be inspected for damage.

Like a twisted mirror, it completely changes all the living habits on the ground, causing the difficulty of life in space.

According to foreign ** reports, the latest study shows that when astronauts or Kiritoro exercise in space, the body temperature will continue to rise, even reaching 104 degrees Fahrenheit (40 degrees Celsius).。The discovery raises concerns about health effects during long-term space missions. For example:

Travel to Mars, because chronic fever can create many health problems, and people can have cognitive decline during long space trips.

Opatez stressed that when the body temperature is too high, circulatory problems, high blood pressure, and even heart attacks and brain overheating can increase the risk of life. Overheating the brain can cause damage to brain tissue, and you don't want someone to land on the surface of Mars with impaired brain function, so you need to make sure he's fit for the job. Since physical movement exacerbates this problem, some people may advise astronauts to pause their fitness routines.

However, Opatez said this is not an option, as astronauts need to exercise consistently every day to slow the rate of muscle exertion in weightlessness. Maybe you have to change your workout plan, maybe you have to take your temperature in time, you have to stop exercising when you get too hot, maybe there's a way to cool down while the astronauts are exercising and avoid hyperthermia, Opatez said.

"Convection is significantly reduced in space and sweat evaporates significantly more slowly than Earth's, which would explain why astronauts heat up particularly quickly during exercise tests on the ISS," Kanuharan said. Devising some methods will help these natural cooling mechanisms become more effective, thereby reducing the severity of the problem.

Kanuharan said the immune factors that we have observed that may be associated with the gradual increase in body temperature are reassuring in developing coping strategies, and it will potentially be used to counteract the effects of the body's core body temperature, which will involve further research programs.

Kanuharan saidAn increase in core body temperature will directly or immediately increase the basal metabolic rate, which will affect all systems in the body。Symptoms that may occur include headache, muscle cramps, dizziness, fainting, increased heart rate, shortness of breath, and problems with the digestive system and sensory groups. ”

Living on Earth, we need to do the necessary exercises, such as running, skipping rope, swimming, weightlifting, and so on. In the same way, living in space also requires the necessary physical exercise to keep the body alive enough, so is physical activity in the sky the same way as on the ground?

In space, astronauts are in a state of complete weightlessness, that is, astronauts are provided by the gravitational force of the earth to provide astronauts with the centripetal force needed to move around the earth in a uniform circle, astronauts are in a floating state in the space station, if they want to walk, they must pass through the straps fixed in the cabin, and they must sleep in a fixed sleeping bag when sleeping.

Like astronauts, other items in the space capsule are also in complete weightlessness, if you place a balance in the space capsule, put an item to be weighed at the left end of the scale, and put a weight at the right end of the scale, the balance is always balanced, because the objects or weights on the left and right sides are not forceful to the balance, and because of this, in the space capsule, the mass of the astronaut cannot be measured with a weight meter.

According to the above analysis, it can be known that if the astronaut is trained to lift dumbbells in the cabin, it is ineffective, and in space, everyone is a weightlifting champion, because the barbell has no pressure on people, and people cannot feel the gravity of the barbell, so that the physical exercise related to gravity is not allowed, and skipping rope is also not good.

Physical exercise that has nothing to do with gravity can be a tension device, the tension device is made of multiple springs in parallel, and one spring, two springs or even more can be selected according to the size of the force, in the process of pulling the spring tensioner, it is the astronaut who has a pulling effect on the spring, so the spring is elongated, which has nothing to do with the gravity of the spring. Naturally, if you jump in the capsule, you will reach the top of the capsule, and the jump will be effortless, and if a high jump competition is held in space, everyone will be a high jump champion.

The completely weightless environment of space is very different from the ground, and physical exercise is one of them!