Space Flights Damage Astronauts’ Bones and Never Fully Recover, New Study Shows

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Because of the bone mass loss that occurs over time in microgravity, astronauts may not ever regain their pre-flight levels of density.

Astronauts who spend more than 3 months in space show symptoms of inadequate bone repair even after returning to Earth a year later, according to researchers. It seems that long-duration operations cause accelerated withering of the bones, especially those in the lower limbs, which carry the weight of the body.

Fortunately, space-based strength training may reduce bone loss and expedite healing, assuming that is possible amid all of this. Scientists have previously shown that astronauts are more prone to retain bone health if they raise the amount of in-flight lower-body resistance exercise compared to preflight conditioning.

Bone loss is a natural part of human aging, injury, or inability to move the body. It is really difficult to comprehend what occurs to astronauts and also how they recuperate. It allows us to see the activities taking place in the organism in such a little period of time.

More than 170 long-duration space missions have been completed by 17 multinational personnel (14 men & 3 women). Before their ISS missions, and 6 and twelve months following their return home, the members were examined.

The year after their spaceflights, measurements of the astronauts’ forearms showed no difference between the 16 who had inadequate shinbone recovery. Bone density was severely impacted. They returned to Earth with bone thicknesses of 282.5 mg / cubic centimeter, a decline of 43.5 mg for every cubic centimeter from their pre-spacetime bone values of 326 mg / cubic centimeter.

In light of NASA’s impending Artemis mission, which aims to establish a long-term presence on the Moon, these discoveries are critical. Future crewed trips to Mars, according to the latest findings, might include similarly protracted stints in space.

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