Changes in walking strategies after spaceflight
Over the last several years, our laboratory has investigated postflight astronaut locomotion with the aim of better understanding how adaptive changes in underlying sensorimotor mechanisms contribute to postflight gait dysfunction. One of the first questions we asked focused on the effects of spacef...
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| Veröffentlicht in: | IEEE engineering in medicine and biology magazine 2003-03, Vol.22 (2), p.58-62 |
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| creator | Bloomberg, J.J. Mulavara, A.P. |
| description | Over the last several years, our laboratory has investigated postflight astronaut locomotion with the aim of better understanding how adaptive changes in underlying sensorimotor mechanisms contribute to postflight gait dysfunction. One of the first questions we asked focused on the effects of spaceflight on head movement control during postflight locomotion. We hypothesized that adaptive modification in multiple sensorimotor systems caused by exposure to the microgravity conditions of spaceflight would lead to disruption in head-trunk coordination during postflight walking. These changes in head-trunk coordination strategies would then disrupt gaze control and alter the organization of terrestrial locomotor control strategies. The data presented indicate that some behavior observed after spaceflight may represent an adaptive reorganization of motor responses targeted at restoring functional mobility but in a novel way that is not observed or required during preflight walking. This observation has implications for the interpretation of all tests of postflight sensorimotor function. |
| doi_str_mv | 10.1109/MEMB.2003.1195697 |
| format | Article |
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One of the first questions we asked focused on the effects of spaceflight on head movement control during postflight locomotion. We hypothesized that adaptive modification in multiple sensorimotor systems caused by exposure to the microgravity conditions of spaceflight would lead to disruption in head-trunk coordination during postflight walking. These changes in head-trunk coordination strategies would then disrupt gaze control and alter the organization of terrestrial locomotor control strategies. The data presented indicate that some behavior observed after spaceflight may represent an adaptive reorganization of motor responses targeted at restoring functional mobility but in a novel way that is not observed or required during preflight walking. 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This observation has implications for the interpretation of all tests of postflight sensorimotor function.</description><subject>Adaptation, Physiological - physiology</subject><subject>Astronaut locomotion</subject><subject>Astronauts</subject><subject>Biology</subject><subject>Control systems</subject><subject>Earth</subject><subject>Eye Movements</subject><subject>Feedback - physiology</subject><subject>Frequency domain analysis</subject><subject>Gait - physiology</subject><subject>Head</subject><subject>Head - physiology</subject><subject>Homeostasis - physiology</subject><subject>Humans</subject><subject>Jacobian matrices</subject><subject>Leg - physiology</subject><subject>Legged locomotion</subject><subject>Life Sciences (General)</subject><subject>Locomotion</subject><subject>Microgravity</subject><subject>Motion analysis</subject><subject>Motors</subject><subject>Movement - physiology</subject><subject>Orientation - physiology</subject><subject>Pediatrics</subject><subject>Postural Balance - physiology</subject><subject>Posture - physiology</subject><subject>Renovating</subject><subject>Retina</subject><subject>Space Flight</subject><subject>Space life sciences</subject><subject>Stability</subject><subject>Strategy</subject><subject>Vision, Ocular - physiology</subject><subject>Walking</subject><subject>Walking - physiology</subject><subject>Weightlessness</subject><issn>0739-5175</issn><issn>1937-4186</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><sourceid>CYI</sourceid><sourceid>EIF</sourceid><recordid>eNqNkUFLHDEYhkOpuFv1B4ilLD0UL6P58iWT5GiXrQqKFz2HJE12x87ObpNZxH_fDDsg9NB6Csn3vA98eQk5BXoBQPXl_eL--wWjFMtVi1rLD2QKGmXFQdUfyZRK1JUAKSbkU87PlALnUhySCTCJyGs6JZfzle2WIc-abvZi219Nt5zlPtk-LJvyamMf0ixvrQ-xbZar_pgcRNvmcDKeR-Tpx-JxflPdPVzfzq_uKi8E9JXCwNFbz1ysfXDomKQaamYFMOAuRuaVUwjRcuUct9p7xOgUl9QrJSQekW977zZtfu9C7s26yT60re3CZpeNxLKCkuq_IFOaCmT4DlAKQfVgPP8nCIA11sCBFfTrX-jzZpe68jFGKc5qKLsUCPaQT5ucU4hmm5q1Ta8GqBl6NEOPZujRjD2WzJdRvHPr8PMtMRZXgM97oLPZmq5PeRBwSpWUlJfx2X7chBDe0qP9D_qwpwA</recordid><startdate>20030301</startdate><enddate>20030301</enddate><creator>Bloomberg, J.J.</creator><creator>Mulavara, A.P.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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One of the first questions we asked focused on the effects of spaceflight on head movement control during postflight locomotion. We hypothesized that adaptive modification in multiple sensorimotor systems caused by exposure to the microgravity conditions of spaceflight would lead to disruption in head-trunk coordination during postflight walking. These changes in head-trunk coordination strategies would then disrupt gaze control and alter the organization of terrestrial locomotor control strategies. The data presented indicate that some behavior observed after spaceflight may represent an adaptive reorganization of motor responses targeted at restoring functional mobility but in a novel way that is not observed or required during preflight walking. 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| source | IEEE Electronic Library (IEL) |
| subjects | Adaptation, Physiological - physiology Astronaut locomotion Astronauts Biology Control systems Earth Eye Movements Feedback - physiology Frequency domain analysis Gait - physiology Head Head - physiology Homeostasis - physiology Humans Jacobian matrices Leg - physiology Legged locomotion Life Sciences (General) Locomotion Microgravity Motion analysis Motors Movement - physiology Orientation - physiology Pediatrics Postural Balance - physiology Posture - physiology Renovating Retina Space Flight Space life sciences Stability Strategy Vision, Ocular - physiology Walking Walking - physiology Weightlessness |
| title | Changes in walking strategies after spaceflight |
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