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  • Title: [Cardiodynamic changes in young sportsmen under the effect of systematic training (problem of development of "sportsman's heart" in children)].
    Author: Shkhvatsabaia IuK.
    Journal: Kardiologiia; 1976 Sep; 16(9):56-60. PubMed ID: 1011530.
    Abstract:
    In 53 hockey players the myocardial contractility was studied by the method of phasic analysis of the cardiac cycle. The volume of the heart was determined with the help of biplane teleroentgenography. Physical performance capacity was also estimated and for this veloergometric test PWC170 was used. The phasic analysis of the cardiac contraction revealed in most of the testees the presence of the syndrome of functionally controlled hypodynamics with all the symptoms common to it. Teleroentgenometric findings showed the youthful hockey players to have an enlarged heart as compared to untrained youths of the same age and to children of senior age. The physical performance capacity of 10-12 year old hockey players proved sufficiently high and in the majority of the examined it was more than twice as great as the PWC170 level registered in untrained children of the same age. Morphological-functional changes in the heart found in youthful hockey players are typical of the "sportsman's heart" and bear evidence to a highly proficient regulation and control over the operation of the circulatory system that finds its expression in the efficient work of the heart and in raising its reserve possibilities under various extreme conditions.
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