The study was designed to analyse the age-specific haemodynamics in junior (11-15 years old) ice hockey players. Subject to the study were 58 boys from the special sports classes of School #1 in Kazan city trained in ice hockey groups and having the 5-years-long uninterrupted formal sport records. The 11 year-old subjects were at the beginner stage of intensive physical training process. The Reference Group for the study was composed of the boys (n=48) from general education school training in compliance with the standard physical education course. The cardiovascular system functionality was tested in the study by the tetrapolar chest rheoplethysmography using Reo-Spectrum-2 Rheograph (made in Russia). The study data was found to indicate that a systemic physical training may be of high effect on the junior athletes` age-specific cardiovascular system functionality. It was found that the 11-14 years old subjects` systolic blood pressure (SBP) notably grows with the falling heart rates (HR) and the growing stroke volumes (SV) associated with the growing peripheral resistance of the blood vessels with age - versus the Reference Group subjects whose test rates were significantly lower. Fast adaptation of the 11-13 year-old athletes` cardiovascular system (CVS) to graded exercise is associated with spastic responses of the vessels without any positive changes in the stroke volumes (SV).
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