Sometimes their hands or knees or shoulders get sore and are hard to move and may become swollen. These people may have arthritis (ar-THRY-tis). Arthritis may be caused by inflammation (in-flah-MAY-shun) of the tissue lining the joints. Some signs of inflammation include redness, heat, pain, and swelling.ometimes their hands or knees or shoulders get sore and are hard to move and may become swollen. These people may have arthritis (ar-THRY-tis). Arthritis may be caused by inflammation (in-flah-MAY-shun) of the tissue lining the joints. Some signs of inflammation include redness, heat, pain, and swelling.
The longest duration flight of all was also perhaps the most encouraging. That's the flight by Valeri Polyakov who spent just over fourteen months in the earlier Russian space station MIR. March 22, 1995: Longest Human Space Adventure Ends | WIRED.
The longest duration achieved on multiple missions, more than two years, was logged by cosmonaut Sergei Krikalev over the course of his six missions. U.S. astronaut Peggy Whitson holds the cumulative female record for most time spent in space on multiple flights with 376 days and she is now training to launch on her third flight in March 2016. Cristoforetti has set more than duration records during her Expedition 42/43 stay on the station, a mission that ESA named Futura.