Wednesday, August 18, 2010

Astronauts Go to Space, and Come to Earth Weaker

Nine astronauts from the International Space Station crew offered their calves for the first cellulose analysis of astonaut nuscles in a muscle biopsy. They gave a set 45 days before their flight, spend six months in space, and gave the second set on the day of landing on Earth. Not one member did not lose sone muscle mass. Gravity in space is low compared to Earth's gravity, and though they exercise during their space voyages, the intensity on their muscles is not the same. The astronaut with the least amount of muscle damage still lost about 10% of muscle force, while another lost 51%, and another lost 70 percent. This was a 6 months voyage, imagine a space trip to Mars, which is about 10 months away, their calf muscles (which supports the body to stand up and move around) could be so damaged that they are not able to do normal work on the planet. Even worse, what if there is an emergency landing, and yet lack the strength to stand on Earth? Researchers say that to improve this, they may need higher-resistance muscle training.

This relates to science concepts because this shows the impact of low gravity of muscle mass. Being away in the amount of gravity that your body is not used to will definitely change the amount of force you use to move around in that space. That's like you dieting on salads everyday, then for three days you eat some BK, and your diet is ruined. On the other hand, if they go to a planet with a stronger gravity than Earth's, then the muscles will need to work harder, but that doesn't apply to this article. This is about the trips going to other places. If a 6 month space voyage can reduce an astronaut's calf muscle down to 30%, what would happen on a 10 month trip? After that, will they come back to Earth learning how to walk and use their legs like a baby learning to walk?

This was written in an article because this affects an astronaut's health. If it affects our space travelers, how do we know more about the universe and the planets around us? What can scientists come up with to prevent this? A 70 percent loss in muscle fibre is very serious, and I'm sure that the astronauts are worried that they have weak calf muscles that can barely hold themself up, and if they continue their jobs, pretty soon they'll be in wheelchairs already. This will give the urge to make traveling devices that can travel faster, or at least find new exercising devices that keep muscles in space on their toes and be ready to work on other planets and in space.

http://wellness.blogs.time.com/2010/08/18/mars-astronauts-muscles-ould-waste-away-during-trip-to-mars/#more-6687

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