In the microgravity environment of spaceflight, the relationship between sensory input and motor output is altered. During prolonged missions, neural adaptive processes come into play to recalibrate central nervous system function, thereby permitting new motor control strategies to emerge in the novel sensory environment of microgravity. However, the adaptive state achieved during spaceflight is inappropriate for a unit gravity environment and leads to motor control alterations upon return to Earth that include disturbances in locomotion. Indeed, gait and postural instabilities following the return to Earth have been reported in both U.S. astronauts and Russian cosmonauts even after short duration (5- to 10-day) flights. After spaceflight, astronauts may: (1) experience the sensation of turning while attempting to walk a straight path, (2) encounter sudden loss of postural stability, especially when rounding corners, (3) perceive exaggerated pitch and rolling head movements during walking, (4) experience sudden loss of orientation in unstructured visual environments, or (5) experience significant oscillopsia during locomotion.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Effects of space flight on locomotor control


    Beteiligte:
    J. J. Bloomberg (Autor:in) / C. S. Layne (Autor:in) / P. V. McDonald (Autor:in) / B. T. Peters (Autor:in) / W. P. Huebner (Autor:in)

    Erscheinungsdatum :

    1999


    Format / Umfang :

    57 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Effects of space flight on locomotor control

    Bloomberg, Jacob J. / Layne, Charles S. / McDonald, P. Vernon et al. | NTRS | 1999



    Locomotor head-trunk coordination strategies following space flight

    Bloomberg, J. J. / Peters, B. T. / Smith, S. L. et al. | NTRS | 1997


    Developing Sensorimotor Countermeasures to Mitigate Post-Flight Locomotor Dysfunction

    Bloomberg, J. J. / Mulavara, A. P. / Cohen, H. et al. | NTRS | 2001