PhD O.S. Vasiliev^{1, 2}
Dr. Biol., Professor S.P. Levushkin^{1, 2}
Dr. Med., Professor E.E. Achkasov³
Dr. Hab., Professor V.I. Lyakh^2
1Russian State University of Physical Education, Sports, Youth and Tourism (SCOLIPE), Moscow
²Institute of Developmental Physiology, Moscow
³Sechenov First Moscow State Medical University. (Sechenov University), Moscow

Objective of the study was to analyze muscle hypersthenia as a risk factor for the overload-induced injuries in the pelvic and hip joints to be picked up during various motor activities associated with the Art of Movement.
Methods and structure of the study. The study involved 42 adolescents (10-14 years of age, mean age - 12.2 years) engaged in gymnastics and choreography. Of them, 21 individuals formed the Experimental Group (EG): they complained of discomfort or pain syndrome in the pelvic and hip regions. The rest of the subjects (21 adolescents) made up the Control Group (CG): they did not complain of any pain and were recruited from the same training groups as the EG subjects.
Results and conclusions. The fitness and choreography tests showed that the CG subjects diagnosed with the local muscle hypersthenia scored lower (6.4±2.3 points) than those without muscle hypersthenia (8.3±1.6 points). The EG subjects scored 3.5±2.1 points before the physical rehabilitation course and 5.6±1.8 points after, and thus demonstrated lower results as compared to the CG subjects diagnosed with the local muscle hypersthenia. The physical rehabilitation course was followed by the isokinetic muscle strength testing on "Biodex System 4 Pro". The test results showed that the bilateral difference for the "Rotation peak moment relative to the body mass" was roughly the same in both study groups, while the bilateral differences for the "Rotation peak moment angle" and "Deceleration time" were differed statistically significantly between the EG and CG. This indicates that a two-week physical rehabilitation course is not enough to restore muscle functions.

Keywords: muscle hypersthenia, adolescents, gymnastics, choreography, turnout, overload-induced injuries, coccygodynia.

References

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3. Thiele G.H. Coccygodynia: Cause and treatment. Dis Colon Rectum, 1963, 6, 422–436.