[State of vestibulotonic reflexes of rat hindlimb muscles after space flight on the satellite 'Cosmos-605"].

The state of the vestibulo-tonic reflexes on hind-limb muscles of rats after the Cosmos-605 flight was investigated. As compared with the controls the flight animals showed a significant decrease of spontaneous bioelectric activity of muscles-extensors of hind-limbs. The response to an adequate stimulation of the vestibular organ was noticeably increased. The postflight changes were functional, varied in a wave-like pattern and decreased gradually.