Abstract：
:The present investigation describes for the first time leg lateral abduction performance during long-term microgravity exposure. Two astronauts took part in the experiments, starting 2 weeks into the mission and lasting for 5 months. Results on joint angles kinematics confirm previous investigations on parabolic flights, showing good task fulfillment for both subjects. Special interest was focused on whole body center of mass (CM) positioning. As in short-term microgravity, no initial CM lateral shift toward the 'supporting' leg was observed. In contrast with short-term microgravity and ground-based experiments, no stabilization of the CM medio-lateral position was found but a significant shift of CM toward the moving leg was observed. This suggests that the adaptation to sustained weightlessness might have led to a microgravity-specific motor strategy for leg abduction, which was not focused on CM strategy.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Pedrocchi A,Baroni G,Mouchnino L,Ferrigno G,Pedotti A,Massion Jdoi
10.1016/s0304-3940(02)00002-2keywords:
subject
Has Abstractpub_date
2002-02-22 00:00:00pages
172-6issue
3eissn
0304-3940issn
1872-7972pii
S0304394002000022journal_volume
319pub_type
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