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Prolonged spaceflights and Endurance Swimming Could  Shrink the Heart

Endurance Swimming could reduce the load on the heart quite significantly. Generally, spending extreme periods in space has something in common with endurance swimming. Both of them can cause the heart to shrink, according to the studies perceived by various scientists. The conclusion of the study was based on the comparison of two storylines. While one comprised the efforts of astronaut Scott Kelly’s year in space, the other story plays around the athlete Benoit Lecomte.

“One of the things we’ve learned over many years of study is that the heart is remarkably plastic. So the heart adapts to the load that’s placed on it,” Professor Levine, who is also director of the Institute for Exercise and Environmental Medicine. Scott Kelly spent 340 days onboard at the International Space Station which allowed scientists to examine the effects of long-duration flights on the human heart.

On the other side of the story, Benoit Lecomte embarked on a perpetuation to swim across the Pacific Ocean. Endurance Swimming could heal the loads placed on the heart by gravity because the person is perplexed at a horizontal position. It could not have been the same if the person happens to be in a vertical position.

Exercise counteracts the process of mass loss. Eventually, astronauts on the International Space Station are subject to extreme exercise regimes to mitigate the muscle and bone wastage incurring in the orbit. However, the concluded heart adaptations aren’t for the long term. Both men’s hearts returned to normalcy after they were back on terra firma. But chambers in the heart known as the atria expand in space, in part because of changes in the way fluid passes through. This might lead to a condition called atrial fibrillation.

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