In the present study, based on the hypothesis that the factors that make it difficult for astronauts to walk immediately after their return from orbit and before re-adaptation to the ground are the unevenness in the state of the lower limb antagonistic muscles, which adapted to the long-term space stay, and the somatosensory regulation in the vestibular system and cerebellum, investigators aim to study astronauts who have stayed in space for a long time, observing them to learn about the process, including (1) co-contraction of the lower limb antagonist muscles, (2) lower limb skeletal muscle blood flow, and (3) center of gravity regulated by the somatosensory system are re-adapted to land, and acquire basic data regarding the re-adaptation process immediately after return.
This is an international experiment. NASA does not currently have an agreement with international space partners to archive their data in the LSDA.
|Mission||Launch/Start Date||Landing/End Date||Duration|
|Expedition 41||09/10/2014||11/09/2014||29 days|
|Expedition 42||11/10/2014||03/11/2015||121 days|
|Expedition 43||03/11/2015||06/10/2015||91 days|
|Expedition 44||06/10/2015||09/11/2015||93 days|
|Expedition 45||09/11/2015||12/11/2015||91 days|
|Expedition 46||12/11/2015||03/02/2016||82 days|
|Expedition 47||03/02/2016||06/18/2016||108 days|
|Expedition 48||06/18/2016||09/06/2016||80 days|
|Expedition 49||09/06/2016||10/30/2016||54 days|