Results of cardiorespiratory system autonomic regulation investigations during long term International Space Station missions: Experiment "Pulse"

Investigations on OS "Mir" showed transient changes in neurohumoral regulation indicating a powerful activity of regulatory systems. The experiment "Pulse" is performed from 5-th expedition on ISS. The aim of the experiment is to investigate adaptation process in microgravity by analysis of autonomous regulation of the cardiorespiratory system. The data equipped in the experiment shows a growth of activity of regulatory and sympathetic systems of autonomous system in adaptation for the long term microgravity. Characteristics of adaptation reactions depend on individual regulatory type. The evaluation of the regulatory systems tension and its functional reserves give important information for estimation of pathological risk.