Development of Upper-Extremity Morphological Asymmetries in Male and Female Elite Youth Tennis Players: A Longitudinal Study.

IF 1.4 4区医学 Q3 PEDIATRICS

Pediatric Exercise Science Pub Date : 2023-08-09 Print Date: 2024-05-01 DOI:10.1123/pes.2023-0003

Laurent Chapelle, Eva D'Hondt, Nikki Rommers, Peter Clarys

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引用次数: 0

Abstract

Purpose: This 2-year longitudinal study examined the development of upper-extremity bone mineral density (BMD), bone mineral content (BMC), and lean mass (LM) asymmetry magnitudes in male and female youth tennis players.

Methods: Dominant and nondominant upper-extremity BMD, BMC, and LM values of 49 male and 31 female players were measured yearly using dual X-ray absorptiometry. From these values, asymmetry magnitudes were calculated and expressed as a percentage. Maturity offset was estimated using anthropometric measurements. Linear mixed effect models examined the development of BMD, BMC, and LM asymmetry magnitudes according to players' maturity offset, sex, and training volume.

Results: Adjusted for sex and training volume, a 1-year increment in maturity offset was associated with a significant increase in BMD (1.3% [2.2%]; P < .001) and BMC (0.6% [2.4%]; P = .011) asymmetry magnitudes. Male players displayed significantly higher LM asymmetry magnitudes (Δ3.2% [8.4%]; P = .002) compared with their female counterparts. Training volume was not significantly associated with asymmetry magnitude development.

Conclusion: In contrast to LM, male and female youth tennis players' upper-extremity bones are still responsive to mechanical loading with a significant increase in BMD and BMC asymmetry magnitudes according to maturity offset.

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青少年网球男女精英运动员上肢形态不对称的发展：纵向研究

目的：这项为期两年的纵向研究探讨了男女青少年网球运动员上肢骨矿物质密度（BMD）、骨矿物质含量（BMC）和瘦体重（LM）不对称幅度的发展情况：方法：使用双 X 射线吸收测量法每年测量 49 名男运动员和 31 名女运动员的优势和非优势上肢骨矿密度、骨矿物质含量和瘦体重值。根据这些数值，计算出不对称幅度，并以百分比表示。成熟偏移量是通过人体测量来估算的。线性混合效应模型根据球员的成熟偏移量、性别和训练量来研究 BMD、BMC 和 LM 不对称幅度的发展情况：结果：经性别和训练量调整后，成熟偏移量每增加 1 年，BMD（1.3% [2.2%]；P < .001）和 BMC（0.6% [2.4%]；P = .011）不对称幅度就会显著增加。男性球员的 LM 不对称幅度（Δ3.2% [8.4%]；P = .002）明显高于女性球员。训练量与不对称幅度的发展无明显关联：结论：与 LM 相反，男女青少年网球运动员的上肢骨对机械负荷仍有反应，BMD 和 BMC 不对称幅度随成熟度偏移而显著增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pediatric Exercise Science 医学-生理学

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Pediatric Exercise Science is a journal committed to enriching the scientific knowledge of exercise during childhood and adolescence. To this end it publishes information that contributes to an understanding of (a) the unique aspects of the physiologic, physical, biochemical, and psychologic responses of children to exercise, (b) the role of exercise in the treatment of pediatric chronic diseases, (c) the importance of physical activity in the prevention of illness and preservation of wellness, and (d) the means by which participation in sports may be made safer and more enjoyable for children and youth. Consideration will be given for publication of work by various methodologies consistent with the scientific approach. Besides original research, the journal includes review articles, abstracts from other journals, book reviews, and editorial comments. Pediatric Exercise Science encourages the expression of conflicting opinions regarding children and exercise by providing a forum for alternative viewpoints. At the same time it serves as a means of accumulating a base of research information that will allow application of experimental data to clinical practice. The scientific disciplines contributing to this body of knowledge are diverse. Therefore it is the purpose of this journal to provide a common focus for disseminating advances in the science of exercise during childhood. In doing so, the journal allows the opportunity for cross-fertilization of ideas between disciplines that will potentiate the growth of knowledge in this field. Pediatric Exercise Science seeks to stimulate new ideas regarding exercise in children and to increase the awareness of scientists, health care providers, and physical educators of the importance of exercise during childhood.