Exercise has benefits, even when it's done in space
Thursday, March 22, 2012 - 16:00
in Astronomy & Space
Astronauts have been taking part in short spaceflight missions since 1961. They have only recently begun to spend significantly longer times in space, with missions extending for months, since the days of the Russian Mir space station (1986-2001) and extended stays on the International Space Station (ISS; November 2000). Though earlier studies clearly showed that astronauts on these extended missions suffered serious deficits from lengthy times in a low-gravity environment, including dizziness when standing up, considerable loss of bone mass, and impaired muscle function, little was known about the effects of long-term space flight on the heart and vascular system.