Monday, March 31, 2014

Heart in Outer Space Astronauts rounded

Being on a low -gravity conditions brought about changes in the human body . The results of the study on 12 astronauts showed their heart shapes tend to be rounded due to the low gravity conditions in space for a long time . As a result , they are more at risk of heart problems on his return to earth .

Research report presented in the Annual Scientific Sessions of the American College of Cardiology 63rd in Washington , the United States said space mission with a duration of 18 months or more affect cardiovascular health of astronauts . " The heart does not work normally in space that causes a lot of loss of muscle mass , " says James Thomas , Head of the Cardiovascular Imaging and Principal Investigator for Ultrasound in the United States Space Agency ( NASA ) . (see also: waptrick)

The astronauts are trained to take on the image of their heart using an ultrasound machine while on the International Space Station . The result , while in space , the astronauts look rounded heart . These results are consistent with the predictions of previous researchers who use mathematical models of computation . This report is also a comparison with a common cardiovascular condition of man on earth .

Heart conditions in space signifies round these parts work is not efficient . However, the long -term effects of changes in the shape it is not yet known . However rounded heart condition that is estimated to be temporary . Heart shape will return to normal after adapting to Earth's gravity . "The changes we observed in astronauts almost similar , " said Thomas , as quoted by ScienceDaily , March 29, 2014 . " We sure could use this model for healthcare applications on earth . "

Experts agree that proper training for astronauts to keep his heart condition could determine the safety and security of their space missions . Exercises developed for astronauts also be used in people with limited movement , such as patients who have to lie in bed for a long time because of heart problems .
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Space missions are known to cause effects on the cardiovascular system . Generally , when it returned to Earth , astronauts may experience dizziness or fainting . This condition is called orthostatic hypotension , in which the blood pressure suddenly dropped when a person stands .

Other health problems such as arrhythmia, or abnormal heartbeat rhythms also haunt astronauts . Radiation hazards faced by astronauts also increase the risk of atherosclerosis or arterial blockage in the blood .

source:http://www. tempo .co/

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