Samohvalov V. G., Bulynina O. D., Vasylieva O. V.

CONTENTS

Scentific article

The issue of muscle tone asymmetry is a very interesting problem which still should be studied. This question is one of the aspects of the topical issue of twoness work of cerebral hemispheres. There is much more information on arms asymmetry than on asymmetry of legs. There are data according to which legs are not equally strong and the dominance of the left leg grows with age. The correlation between the type of the functional asymmetry and the psychological status of the students has been established. we aimed at studying the relationship between stabilometrical reactions and type of functional asymmetry. The 136 students of KNMU 2 course have been examined. Control group includes 46 persons with a right type of functional asymmetry (RTFA). Comparison group consists of individuals with a left type of functional asymmetry (LTFA) – 42 persons, a person with mixed type of functional asymmetry (MTFA) – 26 people and those with socio- modified type of asymmetry (SMTA) – 22 persons. In the course of study a complex of techniques was used: exercise tolerance was assessed with the help of the cycle ergometer test with load dosage (400 W for midgets, 200 W for girls) at constant pedals rotary speed 60 rpm, the degree of the functional asymmetry was defined in complex: with the help of the questionnaire (subjectively) and objectively – when assessing the ability to keep balance standing on one foot with eyes closed (cycle ergometer test). According to the results of cycle ergometer test the highest level of exercise tolerance is observed in individuals with LTFA (142. 1 sec.), individuals with MTFA and SMTA show more or less equal results (125. 1 and 125. 3, correspondingly), and the last follow the individuals with RTFA (111. 5 sec.). Young adults with a right type functional asymmetry demonstrate the most expressive asymmetry endurance at rest and immediately after exercise. The least expressive asymmetry demonstrated endurance with socio-modified type of asymmetry at rest and person with mixed type of functional asymmetry immediately after exercise. Young adults with a left type functional asymmetry demonstrate high anxiety, aggression, constriction, frustration and petulance. Individuals with mixed type of functional asymmetry demonstrate the highest levels of physical and verbal aggression. Herewith, the quality of the intellectual functioning is significantly improved in response to the physical activity. Such individuals quickly demonstrate the strong adaptive reaction as a result of the dominating excitative process. However, the vegetal “price” of such adaptation combined with high anxiety and aggression is too high, which rapidly exhausts the adaptive resources of the human body. Despite great interest of many authors to the encephalic asymmetry studies, these data are of contradictory and fragmentary nature and can’t shape a full picture of the gist of the problem. In connection with this, in our opinion, further studies in this area are necessary and promising.

functional asymmetry, psychoemotional state, quality factor of the intellectual activity, adaptation to the physical loadings

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«Bulletin of problems biology and medicine» Issue 3 part 1 (110), 2014 year, 313-316 pages, index UDK 612. 766. 1: 612. 821. 3: 378-057. 8. 875