RESUMO
Two groups of schoolchildren were included in the present study; 59 of them were allocated to the experimental group while 66 others comprised the control group. All of them were examined to estimate psychological, psycho-physiological and physiological effects of the health-promoting treatment basedon a local health resort. Mean reaction time and mean root square deviation of this parameter determined with the use of the noise-immunity test improved significantly in both groups, but the number of 'late reaction' errors declined only in the experimental group. The analysis of the heart rate variability at rest demonstrated a significant increase of the total power spectrum as well as its very low-, low-, and high-frequency components in the supine position only in the experimental group but not in the control one. Moreover, the mean duration of cardiointervals also increased. The physical working capacity test showed a significantly enhanced working capacity in the treated children. The orthostatic test revealed an increase in the ratio of low-frequency/high-frequency components and a relative increase of the high-frequency component in the experimental group the amplitude of the transition process in the control group. The results of the study confirm the overall positive effects of the health promotion in schoolchildren presenting with heart rate variability treated at the local health resort on their psycho-physiological and physiological conditions, with the heart rate variability patterns being the most informative objective criteria of the physiological responsiveness.
