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The subsequent big leap? How leaping may assist astronauts prepare for journeys to the moon and Mars

February 19, 2025
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The subsequent big leap? How leaping may assist astronauts prepare for journeys to the moon and Mars
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Leaping workouts may assist defend astronauts from knee and hip ache throughout long-term missions to the moon and Mars, based on new analysis.

The findings add to the rising physique of proof aimed toward safeguarding future house vacationers from the doubtlessly debilitating results of extended spaceflight.

Microgravity impacts almost each side of the human physique, usually in a destructive approach, and even after only a quick interval of publicity. Earlier analysis monitoring the well being of astronauts throughout a three-day mission in orbit confirmed that just about all of the modifications reversed to regular as soon as the crew returned to Earth.

gif showing a mouse jumping in a laboratory trial

Shut-up view of a custom-built equipment that researchers at Johns Hopkins College used to check the consequences of leaping on cartilage in mice. The research corresponded to roughly 5 human years and mirrors a progressive overload method utilized in human sports activities efficiency. (Picture credit score: Marco Chiaberge/Johns Hopkins College)

However scientists fear that astronauts may additionally endure extra long-term modifications, resembling harm to cartilage, the tissue that cushions the joints and is important for pain-free, unrestricted motion. Such impacts may impair astronauts’ capability to carry out bodily demanding duties like spacewalks, and have an effect on their capability to deal with gear and carry out repairs.

Associated: Weightlessness and its impact on astronauts

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Extended inactivity — a chance on house missions — may end up in modifications within the physique that speed up cartilage breakdown, which has restricted capability for self-repair. House radiation can additional exacerbate this impact; experiments by the European Space Agency have discovered proof of cartilage degradation in astronauts who spent 4 to 6 months on the Worldwide House Station (ISS).

“Take into consideration sending any individual on a visit to Mars: They get there they usually cannot stroll as a result of they developed osteoarthritis of the knees or the hips, and their joints do not operate,” research lead writer Marco Chiaberge, a analysis scientist on the Johns Hopkins College in Maryland, mentioned in a statement. “Cartilage harm is a extremely main challenge that house companies want to deal with regardless of how very poorly understood it’s.”

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Chiaberge and his staff discovered that 5 mice that jumped 3 times every week for 2 months in a lab right here on Earth confirmed thicker, more healthy knee cartilage. A second group of 4 mice was fed with the identical meals and water, however was restricted to decreased motion. This group skilled cartilage thinning and different early indicators of arthritis, based on the brand new research, which was revealed final week within the journal npj Microgravity.

“The constructive impact we noticed in these mice is large, and the magnitude of it was surprising,” Chiaberge mentioned within the assertion. “They will principally make their cartilage thicker in the event that they leap — possibly astronauts may use comparable coaching earlier than their flight as a safety measure.”

Astronauts on board the ISS dedicate two hours every day to cardio and energy coaching workouts geared towards preserving tissue and bone well being. However these countermeasures usually are not particularly designed to reduce cartilage breakdown, based on the brand new research.

Whether or not the constructive results noticed with mice within the new research might be transferred to people is unknown. Nonetheless, as a result of the two-month research in mice corresponded to roughly 5 human years, such leaping workouts may very well be included into astronauts’ routines earlier than and through spaceflight, Chiaberge mentioned within the assertion.

Astronauts “might want to spend extra time in house and the moon, the place we are going to construct bigger telescopes to discover the universe and the place they might want to keep as wholesome as attainable,” he mentioned.



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