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

Authors :
Chapelle, Laurent
D'Hondt, Eva
Rommers, Nikki
Clarys, Peter
Source :
Pediatric Exercise Science; May2024, Vol. 36 Issue 2, p91-97, 7p
Publication Year :
2024

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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08998493
Volume :
36
Issue :
2
Database :
Complementary Index
Journal :
Pediatric Exercise Science
Publication Type :
Academic Journal
Accession number :
177461981
Full Text :
https://doi.org/10.1123/pes.2023-0003