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Influence of the Tertile of Birth on Anthropometric Variables, Anaerobic Parameters and Quantitative Muscle Ultrasound in School Children

Author

Listed:
  • Juan Carlos Giraldo García

    (Área Biomédica, GESTAS Research Group, Politécnico Colombiano Jaime Isaza Cadavid, Medellín 050021, Colombia)

  • Elena Hernández-Hernández

    (Sport and Computer Science Department, Universidad Pablo de Olavide, 41013 Seville, Spain
    SEJ-570 MOTIVA2 Research Group, Universidad Pablo de Olavide, 41013 Seville, Spain)

Abstract

The relative age effect (RAE) has been studied and demonstrated in the literature. Our study evaluated the influence of birth tertile on anthropometric variables, anaerobic parameters, and quantitative muscle ultrasound in school children. A transversal, comparative, non-randomized study was conducted with 159 participants (9.36 ± 0.84 years) recruited by purposive sampling, of whom 70 were girls (9.50 ± 0.77 years) and 89 were boys (9.25 ± 0.88 years). The sample was divided into groups based on the year of birth, and each group was divided into tertiles. The anthropometric parameters of body weight, height, and fat percentage were measured, and then a right quadriceps ultrasound was performed, followed by the evaluation of CMJ and continuous jumps. Comparison of tertile subgroups showed significant differences in the vertical jump, in girls (CMJ, PCMJ, PCMJR, PCMJDE, PCMJDER, and PP15) and in boys (PCMJ, PCMJR, PCMJDE, and PP15). The results indicate that being born in the first months of the year may have a positive influence on performance in anaerobic tests, such as vertical jump, and on the quantitative ultrasound results of the quadriceps.

Suggested Citation

  • Juan Carlos Giraldo García & Elena Hernández-Hernández, 2021. "Influence of the Tertile of Birth on Anthropometric Variables, Anaerobic Parameters and Quantitative Muscle Ultrasound in School Children," IJERPH, MDPI, vol. 18(13), pages 1-13, July.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:13:p:7083-:d:587334
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    References listed on IDEAS

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    1. Alfonso de la Rubia Riaza & Jorge Lorenzo Calvo & Daniel Mon-López & Alberto Lorenzo, 2020. "Impact of the Relative Age Effect on Competition Performance in Basketball: A Qualitative Systematic Review," IJERPH, MDPI, vol. 17(22), pages 1-31, November.
    2. Florentino Huertas & Rafael Ballester & Honorato José Gines & Abdel Karim Hamidi & Consuelo Moratal & Juan Lupiáñez, 2019. "Relative Age Effect in the Sport Environment. Role of Physical Fitness and Cognitive Function in Youth Soccer Players," IJERPH, MDPI, vol. 16(16), pages 1-19, August.
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