Space Travel Can Cut Astronauts’ Fitness Levels by 50 Percent

Space Travel Can Cut Astronauts’ Fitness Levels by 50 Percent

PLUSMÁSPLUS
Space travel may reduce astronaut’s 50 percent fitness levels
Astronauts aboard the International Space Station (as Luca Parmitano, shown here in 2013) generally take about two hours a day to maintain physical health. Despite these efforts, long-duration space flights can lead to a 50% decrease in fitness levels, a new study suggests.
Credit: NASA
The long astronaut space flight eliminates 30 to 50% exercise capacity, a new study suggests.

This large reduction is probably due to the fact that the heart and tiny blood vessels called capillaries do not supply oxygen to working muscles, just as effectively in microgravity conditions as in the world, according to the researchers.

“This is a dramatic decline,” said author Carl Ade, an assistant professor of exercise physiology at Kansas State University, in a statement. [The human body in space: 6 strange facts]

advertising

“When your cardiovascular function decreases, your aerobic exercise capacity decreases,” said Ade. “While previous studies suggest that this is due to changes in cardiac function, our data suggest that there are things in the heart, but also in microcirculation in the capillaries.”

Ade and colleagues studied the performance of nine NASA astronauts who stayed aboard the International Space Station (ISS), each of about six months. The researchers compared oxygen-absorbing spatial balloons, cardiac output, and other measures taken during stationary bicycle testing before launching astronauts and just after landing.

The results showed that maximal oxygen uptake, a key indicator of cardiovascular health, was down 30 to 50 percent after astronauts returned to the ISS before leaving.

“This decrease is related not only to health but also to performance,” said Ade. “If we can understand why the maximum oxygen consumption decreases, this allows us to offer specific interventions, either exercise or pharmacological interventions.” This new important information can help astronauts and avoid any negative changes in the performance of their work.

These interventions may be essential for in-depth missions to destinations such as Mars, according to study team members. After all, the pioneers of the red planet can strike in a hard effort exercise on occasion – by returning an injured or sick member to the base, for example.

The research team could also have applications on Earth, which could
Les voyages spatiaux peuvent réduire les fitness levels des astronautes de 50 pour cent
Les astronauts à bord de la Station spatiale internationale (comme Luca Parmitano, montrés ici in 2013) exerent généralement environ deux heures par jour pour maintenir la santé physique. Malgré de tels efforts, les vols spatiaux de longue durée peuvent entraîner une baisse de 50% des niveaux de remise en forme, suggère une étude récente.
Credit: NASA
Le vol de spatial de durée provides the ability to exercise astronauts from 30 to 50%, suggesting a rhetorical étude.

Cette grande réduction provient probable du fait le cœur et les minuscules vaisseaux sanguins appelés capillaires ne fournissent pas d’oxygène aux muscles qui travaillent, aussi efficacement en microgravité que dans le monde, ont indiqué des chercheurs.

‘C’est une diminution spectaculaire’, to lead the main auteur Carl Ade, a professed adjoint of physiology of the exercise to the Université d’État du Kansas, dans a communiqué. [Le corps humain dans l’espace: 6 faits étranges]

Publicité

‘Lorsque votre fonction cardiovasculaire diminuue, votre capacité d’exercice aérobie diminue’, a ajouté Ade. “Vous ne pouvez plus effectuer d’activités physiquement difficiles.” It is important to note that it is interesting to note that the case was produced in the light of the changes in the fonction cardiaque. The microcirculation au sein Capillaires “.

Ade et ses collègues ont he performance of NASA exercise neuf astronauts qui ont séjourné à bord de la Station spatiale internationale (ISS), chacun pour des périodes d’environ six mois. Les chercheurs ont comparing the absorption of oxygene of ballons spatiaux, the sortie cardiaque et d’autres mesures prises pendant les tests de bicyclette stationnaires avant que les astronautes ne lance et juste après leur débarquement.

Les résultats ont montré que l’absorption maximale d’oxygène, an illustrator of the cardiovascular health, était inférieure de 30 à 50 pour
El viaje espacial puede reducir los niveles de aptitud de 50 por ciento de los astronautas
Los astronautas a bordo de la Estación Espacial Internacional (como Luca Parmitano, que se muestra aquí en 2013) en general, llevar unas dos horas al día para mantener la salud física. A pesar de estos esfuerzos, los vuelos espaciales de larga duración pueden conducir a una disminución del 50% en los niveles de condición física, según sugiere un estudio reciente.
Crédito: NASA
El vuelo espacial a largo astronautas elimina la capacidad de ejercicio de 30 a 50%, sugiere un estudio reciente.

Esta gran reducción se debe

Be the first to comment

Leave a comment

Your email address will not be published.


*