[The nature of the distribution of the individual circulatory biorhythms in schoolchildren (7 to 17 years old) living at different altitudes in the mountains].

Data on individual biorhythms are presented for 270 children aged 7-17 living in the regions situated at 760, 1700 and 2850 m above the sea level. Central hemodynamics was measured by Kubicek et al. method 6 times a day every 6 hours. The analysis of the pilot evidence was conducted by cosinor program, then an original method was introduced which allowed evaluation of the degree of biorhythmologic dispersion in the samples. The findings indicate a significant increase in hemodynamic biorhythm polymorphism and broadening of "biorhythmological norm" in children population aged 7-17 under the middle and high mountain conditions.