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Minerva Ortopedica e Traumatologica 2018 September;69(3 Suppl 1):26-30

DOI: 10.23736/S0394-3410.17.03859-0

Copyright © 2017 EDIZIONI MINERVA MEDICA

lingua: Inglese

Connective tissue dysplasia in young hockey players: advantage or risk?

Varvara TIMOKHINA 1, Kamiliya MEKHDIEVA 1, Anna ZAKHAROVA 1 , Nina SEROVA 1, Felix BLYAKHMAN 1, 2

1 B.N. Yeltsin Ural Federal University, Yekaterinburg, Russia; 2 Ural State Medical University, Yekaterinburg, Russia


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BACKGROUND: Connective tissue dysplasia (CTD) is a genetically determined condition associated with defects of collagen synthesis and maturation. As CTD is a widespread disorder the special attention should be paid to studying the influence of connective tissue dysplasia on adaptation to rigorous exercise. This paper covers the impact of age-related CTD features on physical working capacity and effectiveness of the cardiovascular system adaptation in young hockey players.
METHODS: The experimental group included 53 hockey players (with a mean age of 9 years) attending youth sport schools. CTD markers were determined in accordance with the Ghent criteria 2010 and the Beighton score. The parameters of physical working capacity and effectiveness of adaptation were assessed by the results of cycle spiroergometry.
RESULTS: The obtained data revealed that 100% (N.=53) of young hockey players had CTD markers. The analysis of relations between joint hypermobility and physical working capacity parameters revealed the positive correlations with strength index (r=0.54. P<0.01) and maximum oxygen consumption (r=0.36, P<0.01) as well as 1-minute recovery HR (r=0.4, P<0.01). The comparative analysis results indicated the significantly higher levels of physical working capacity in the group of athletes with systemic symptoms of CTD, particularly the values of maximum oxygen consumption and strength index (P=0.0001 and P=0.006, respectively). At the same time the parameters characterizing effectiveness of the cardiovascular system adaptation were decreased which was manifested by a lower post-exercise recovery rate (P=0.011) and increased resting HR levels (P=0.027).
CONCLUSIONS: Thus, young hockey players with CTD have a less effective adaptation of the cardiovascular system to intensive exercise. Contrary to expectation, the obtained data suggest the higher level of physical working capacity in young hockey players with systemic symptoms of CTD as well as of the effective adaptation of the cardiovascular system to low-intensity loads.


KEY WORDS: Sport - Child - Connective tissue neoplasms - Hockey

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