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Astronauts' muscles can become weak due to the microgravity environment of space, which reduces the need for muscle strength and use. In space, the body does not have to work against gravity, leading to muscle atrophy and loss of strength over time. Additionally, the lack of resistance and weight-bearing activities further contributes to the weakening of muscles. To mitigate this, astronauts engage in regular exercise routines while on missions to maintain muscle mass and strength.

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Why did astronauts back in 1960s return to earth with muscles so weak that they had difficulty walking when they returned to the earth?

After any period in a place where the force of gravity is less than on the surface of the earth (or nearly weightless in orbit), muscles will begin to atrophy. The longer in space the weaker you get becuase the muscles do not have to counter the force of gravity. This also includes the heart muscle so the astronauts must be monitored while in space and for a while after their return to earth.


The device astronauts used to study extremely weak moonquakes was a?

seisometer.


What device do astronauts use to study extremely weak moon quakes?

they use very strong technolygy no one knows for sure wut it is called


Can women be astronauts?

Yes, women can definitely be astronauts. Numerous women have successfully become astronauts and have participated in space missions conducted by various space agencies around the world, including NASA. Gender is not a barrier to becoming an astronaut.


What happens to the muscles of astronauts who are in space for a extended period?

In space, astronauts experience muscle atrophy due to the microgravity environment, which reduces the mechanical load on their muscles. Without the need to support their body weight, muscles can weaken and shrink, leading to a decrease in strength and endurance. To combat this, astronauts engage in regular resistance and aerobic exercise while aboard the International Space Station to help maintain muscle mass and overall fitness. Despite these efforts, some muscle loss still occurs during extended missions.

Related Questions

How long do astronauts exercise in space?

They exercise for up to 2 hours each day, so that their bones and muscles don't become weak.


What happens to astronauts bodies in space?

Their bodies would become very weak.


What makes an astronaut weaker?

in zero gravity, your muscles dont have to work very hard unless youre doing something. exercise for astronauts is important so that muscles dont become weak from not being used - also bones become weaker and less dense in zero gravity and nobody knows exactly why yet


What happens to the muscles during a prolonged illness?

If you are ill for a long time, your muscles can become weak and atrophy can occur.


Why your body become so weak when you smoke marijuana regularly?

It doesn't. The only way that would happen is if you do nothing but lay around smoking. Then your muscles will get weak from lack of movement.


Why do weak muscles shake?

There are quite a few reasons why weak muscles might shake. These muscles could just be spending the last of their energy.


Why did astronauts back in 1960s return to earth with muscles so weak that they had difficulty walking when they returned to the earth?

After any period in a place where the force of gravity is less than on the surface of the earth (or nearly weightless in orbit), muscles will begin to atrophy. The longer in space the weaker you get becuase the muscles do not have to counter the force of gravity. This also includes the heart muscle so the astronauts must be monitored while in space and for a while after their return to earth.


Are healthy muscles stronger than weak muscles?

yes


What happens to the muscles of astronauts who are in space for an extended period?

They weaken


Where does the comma go in the sentence if astronauts don't exercise in space weightlessness eventually causes there muscles to shrink?

If astronauts don't exercise in space, weightlessness eventually causes there muscles to shrink?


How does Hyperthyroidism affect muscles?

increases the body's basal metabolic rate and much of this energy is inefficiently used for muscle contraction. In turn, the muscles lose their endurance, fatigue easily, and become weak and wasted


What causes astronauts to become weighless?

the absence of the gravitational force or field in space causes the astronauts to become weightless