[INTERHEMISPHERIC DIFFERENCES BETWEEN ENCEPHALOGRAPHY ALPHA SPECTRAL POWER INDICES DURING BICYCLE ERGOMETRY].

The EEG recording from 30 supine volunterrs during bicycle ergometry with the load growing incrementally to a submaximal heart rate was made in order to study alpha spectra and their interhemispheric differences. Comparative analysis of EEG records demonstrated a statistical gain of the alpha-power in both hemispheres at the final step of aerobic work and throughout the period of recovery with power reaching the highest values in the left hemisphere. Analysis of interhemispheric differences points to activation of the right hemisphere over the whole period of the investigation.

[INVESTIGATION OF BLOOD BIOCHEMICAL INDICES DURING BICYCLE ERGOMETRY].

Our investigations showed that physical work (bicycle ergometry) alters the biochemical status of male volunteers. On the 5th minute of bicycle endometry capillary blood looses significantly glucose and increases magnesium, phosphorus and particularly lactic acid. Creatine phosphokinase activity and trygliceride levels did not deviate much from baseline values.

[HEART RHYTHM VARIABILITY ANALYSIS AND ASSESSMENT OF THE SPINAL PAIN SYNDROME DURING DRY IMMERSION].

The spinal pain syndrome appears in cosmonauts on both short and long-duration missions. This untoward factor may affect body systems functioning and complicate the successful accomplishment of space mission. Purpose of the investigation was to examine the lumbar spine and to elucidate whether its condition relates to the spinal pain development and changes in heart rate variability (HRV) in the microgravity environment.

[Clinico-diagnostic and expert characteristics of noncoronary cardiac rhythm disorders in state aviation pilots].

Structure and prevalence of various forms of noncoronary heart diseases (NCHD) and cardiac rhythm disorders (CRD) in state aviation pilots, as well as rates of ensuing grounding were studied. The total of 220 NCHD and 100 essentially healthy pilots were examined. Cardiovascular clinical and functional investigations consisted of physical examination, ECG, dispersion mapping (DM ECG), provocative tests and other techniques used for pilots' certification.