Genetic Regulation of Physical Fitness in Children: A Twin Study of 15 Tests from Eurofit and Fitnessgram Test Batteries.

Autor:	Silventoinen K, Maia J; Centre of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, PORTUGAL., Sillanpää E, Sund R; Institute of Clinical Medicine, University of Eastern Finland, Kuopio, FINLAND., Gouveia ÉR, Antunes A; Department of Physical Education and Sport, University of Madeira, Funchal, PORTUGAL., Marques G; Department of Physical Education and Sport, University of Madeira, Funchal, PORTUGAL., Thomis M; Physical Activity, Sports & Health Research Group, Department of Movement Sciences, Faculty of Movement and Rehabilitation Sciences, KU Leuven, Leuven, BELGIUM., Kaprio J; Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, FINLAND., Freitas D
Jazyk:	angličtina
Zdroj:	Medicine and science in sports and exercise [Med Sci Sports Exerc] 2024 Oct 01; Vol. 56 (10), pp. 2000-2006. Date of Electronic Publication: 2024 Jul 01.
DOI:	10.1249/MSS.0000000000003496
Abstrakt:	Purpose: This study aimed to analyze the shared genetic background of physical fitness tests in children. Methods: Physical fitness was assessed in 198 Portuguese twin pairs (6-18 yr old, 40% monozygotic) through 15 tests from the Eurofit and Fitnessgram test batteries. Genetic twin modeling was used to estimate the heritability of each test and the genetic correlations between them. Results: Girls performed better than boys in flexibility, whereas boys performed better than girls in cardiorespiratory endurance and muscular strength. No sex differences were found in the influence of genetic factors on the physical fitness tests or their mutual correlations. Genetic factors explained 52% (standing long jump) to 79% (sit and reach) of the individual variation in motor performance, whereas individual-specific environmental factors explained the remaining variation. Most of the tests showed modest to moderate genetic correlations. Out of all 105 genetic correlations, 65% ranged from 0.2 to 0.6 indicating that they shared from 4% to 36% of genetic variation. The correlations between individual-specific environmental factors were mostly negligible. Conclusions: Tests measuring the strength of different muscle groups showed only modest correlations, but moderate correlations were found between tests measuring explosive strength, running speed/agility, and cardiorespiratory endurance. Genetic factors explained a major portion of the variation in tests included in the Eurofit and Fitnessgram test batteries and explained the correlations between them. The modest to moderate genetic correlations indicated that there is little redundancy of tests in either Eurofit or Fitnessgram test batteries. (Copyright © 2024 by the American College of Sports Medicine.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu