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Extended Space Travel Causes an Inevitable Drop in Physical Fitness

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Laurence Lafarge
May 09, 2017 14:40

p Another day, another study showing how awful microgravity is to the human body.

As noted in the study, which you can check out at the Journal of Applied Physiology, this seems to be happening because our heart and small blood vessels suck at transporting oxygen to working muscles under microgravity conditions.

Discouragingly, the effect still matters when astronauts try to maintain a high degree of fitness in space, by riding stationary bikes and running on treadmills.

Prior to embarking on their missions, each astronaut had various health measures taken to assess their physical fitness, including oxygen uptake, cardiac output, and hemoglobin concentration and saturation.

(Hemoglobin is the iron-rich protein responsible for transporting oxygen in your blood.)

While in space, each astronaut followed an aerobic and resistance training regimen designed by NASA.

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Laurence Lafarge
May 09, 2017 14:40
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