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Relationship between Anthropometric, Physical and Hormonal Parameters among Pre-Pubertal Handball Players

Background: The aims of our study were to investigate the changes in anthropometric and physical parameters and fasting hormonal levels among pre-pubertal female handball players (n = 14, age: 11.53 ± 0.58 yrs, height: 153.36 ± 5.12 cm, body mass: 43.59 ± 6.14 kg) in the pre-season period following...

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Autores principales: Cselkó, Alexandra, Szabó, Edina Ivett, Váczi, Mark, Kőszegi, Tamas, Tékus, Eva, Wilhelm, Marta
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8507650/
https://www.ncbi.nlm.nih.gov/pubmed/34639279
http://dx.doi.org/10.3390/ijerph18199977
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author Cselkó, Alexandra
Szabó, Edina Ivett
Váczi, Mark
Kőszegi, Tamas
Tékus, Eva
Wilhelm, Marta
author_facet Cselkó, Alexandra
Szabó, Edina Ivett
Váczi, Mark
Kőszegi, Tamas
Tékus, Eva
Wilhelm, Marta
author_sort Cselkó, Alexandra
collection PubMed
description Background: The aims of our study were to investigate the changes in anthropometric and physical parameters and fasting hormonal levels among pre-pubertal female handball players (n = 14, age: 11.53 ± 0.58 yrs, height: 153.36 ± 5.12 cm, body mass: 43.59 ± 6.14 kg) in the pre-season period following 8 weeks of handball training, and to analyze the contribution of hormones, physical performance and anthropometric parameters. Methods: Prior to and immediately following the training period, several anthropometric, strength, and cardiorespiratory variables, including fasting hormonal concentrations (plasma cortisol, estradiol, testosterone and growth hormones) were measured. Athletes performed concurrent resistance and aerobic exercises, including game-based trainings during the 8-week training period. Results: Significant elevations were found in all strength parameters (maximal handgrip strength dominant (D): 16.40%, p < 0.01; non-dominant (ND): 25.15%, p < 0.05; maximal concentric (MVC) torque of quadriceps D: 13.82%, p < 0.05; ND: 12.61%, p < 0.05; MVC torque of hamstring D: 12.14%, p < 0.01; ND: 12.44%, p < 0.01), including plasma cortisol levels (C, 34.30%, p < 0.05) and peak respiratory quotient (5.24%, p < 0.05). Body composition and maximal oxygen uptake (VO(2max)) remained unchanged. Percentage changes in thigh (r = 0.316, p < 0.05), hand (r = 0.361, p < 0.05), and hip circumference (r = 0.297, p < 0.05) correlated with C changes. Percentage changes in plasma growth hormone levels (GH) contributed to the magnitude of gains in handgrip strength (r = 0.553, p < 0.05). Percentage changes in maximal exercise pulmonary ventilation (MVE) correlated with elevated C (r = −0.592, p < 0.05). Discussion: Changes in anthropometric variables and fasting hormone levels (estradiol, testosterone and cortisol) were poor indicators of developing VO(2max) and strength during pre-pubertal years. Physical adaptation may not be explained in consideration of the athletes’ hormonal or anthropometric characteristics. Conclusion: Gradually increased training volume followed by a summer break should be applied to youth handball, considering the anti-hypertrophic responses and the inhibitory effect of elevating C on pre-pubertal maturation.
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spelling pubmed-85076502021-10-13 Relationship between Anthropometric, Physical and Hormonal Parameters among Pre-Pubertal Handball Players Cselkó, Alexandra Szabó, Edina Ivett Váczi, Mark Kőszegi, Tamas Tékus, Eva Wilhelm, Marta Int J Environ Res Public Health Article Background: The aims of our study were to investigate the changes in anthropometric and physical parameters and fasting hormonal levels among pre-pubertal female handball players (n = 14, age: 11.53 ± 0.58 yrs, height: 153.36 ± 5.12 cm, body mass: 43.59 ± 6.14 kg) in the pre-season period following 8 weeks of handball training, and to analyze the contribution of hormones, physical performance and anthropometric parameters. Methods: Prior to and immediately following the training period, several anthropometric, strength, and cardiorespiratory variables, including fasting hormonal concentrations (plasma cortisol, estradiol, testosterone and growth hormones) were measured. Athletes performed concurrent resistance and aerobic exercises, including game-based trainings during the 8-week training period. Results: Significant elevations were found in all strength parameters (maximal handgrip strength dominant (D): 16.40%, p < 0.01; non-dominant (ND): 25.15%, p < 0.05; maximal concentric (MVC) torque of quadriceps D: 13.82%, p < 0.05; ND: 12.61%, p < 0.05; MVC torque of hamstring D: 12.14%, p < 0.01; ND: 12.44%, p < 0.01), including plasma cortisol levels (C, 34.30%, p < 0.05) and peak respiratory quotient (5.24%, p < 0.05). Body composition and maximal oxygen uptake (VO(2max)) remained unchanged. Percentage changes in thigh (r = 0.316, p < 0.05), hand (r = 0.361, p < 0.05), and hip circumference (r = 0.297, p < 0.05) correlated with C changes. Percentage changes in plasma growth hormone levels (GH) contributed to the magnitude of gains in handgrip strength (r = 0.553, p < 0.05). Percentage changes in maximal exercise pulmonary ventilation (MVE) correlated with elevated C (r = −0.592, p < 0.05). Discussion: Changes in anthropometric variables and fasting hormone levels (estradiol, testosterone and cortisol) were poor indicators of developing VO(2max) and strength during pre-pubertal years. Physical adaptation may not be explained in consideration of the athletes’ hormonal or anthropometric characteristics. Conclusion: Gradually increased training volume followed by a summer break should be applied to youth handball, considering the anti-hypertrophic responses and the inhibitory effect of elevating C on pre-pubertal maturation. MDPI 2021-09-23 /pmc/articles/PMC8507650/ /pubmed/34639279 http://dx.doi.org/10.3390/ijerph18199977 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cselkó, Alexandra
Szabó, Edina Ivett
Váczi, Mark
Kőszegi, Tamas
Tékus, Eva
Wilhelm, Marta
Relationship between Anthropometric, Physical and Hormonal Parameters among Pre-Pubertal Handball Players
title Relationship between Anthropometric, Physical and Hormonal Parameters among Pre-Pubertal Handball Players
title_full Relationship between Anthropometric, Physical and Hormonal Parameters among Pre-Pubertal Handball Players
title_fullStr Relationship between Anthropometric, Physical and Hormonal Parameters among Pre-Pubertal Handball Players
title_full_unstemmed Relationship between Anthropometric, Physical and Hormonal Parameters among Pre-Pubertal Handball Players
title_short Relationship between Anthropometric, Physical and Hormonal Parameters among Pre-Pubertal Handball Players
title_sort relationship between anthropometric, physical and hormonal parameters among pre-pubertal handball players
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8507650/
https://www.ncbi.nlm.nih.gov/pubmed/34639279
http://dx.doi.org/10.3390/ijerph18199977
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