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Age and sex-related upper body performance differences in competitive young tennis players


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Título :
Age and sex-related upper body performance differences in competitive young tennis players
Autor :
Fernández-Fernandez, Jaime  
Nakamura, Fábio Yuzo  
Moreno Pérez, Víctor
López-Valenciano, Alejandro
Del Coso, Juan  
Gallo-Salazar, Cesar
Barbado, David  
Ruiz-Perez, Iñaki
Sanz-Rivas, David  
Editor :
Public Library of Science
Departamento:
Departamentos de la UMH::Patología y Cirugía
Fecha de publicación:
2019-09-03
URI :
https://hdl.handle.net/11000/30726
Resumen :
Objective The aims of this study were to analyze the shoulder functional profile of young male and female tennis players and to establish the relationship among physical variables and serve speed. Methods A total of 128 Spanish tennis players (Under-13 (n = 32/32 males/females) and Under-15 (n = 36/28 males/females), were tested during National training camps. Tests included passive shoulder range of motion (ROM) for both internal (IR) and external rotation (ER) and isometric strength (i.e., IR and ER) of the dominant/non-dominant shoulders, medicine ball throws (MBT), and serve speed. Age and sex pairwise comparisons were carried using the Hedges’ g index (dg). Results Results showed age and sex effects on serve speed and all MBT, with males showing greater changes (1.51�dg�1.98) with age than females (0.92�dg�1.35; p<0.05). U15 males showed higher (p<0.05) absolute shoulder IR and ER strength than U13, with only significant differences between males and females in the U15. Regarding ROM, U15 males showed a decreased IR ROM compared to U13 (dg = -0.84; p<0.05) and higher significant IR bilateral deficit (dg = 0.51; p<0.05). The distances obtained in the different MBT were the variables more correlated to serve speed. Conclusion The present results suggest that shoulder strength, medicine ball throws and serve speed increased along with age in young elite tennis players of both sexes. However, a decreased range of motion and bilateral deficit for glenohumeral internal rotation is evident in male under-15 tennis players. Muscle strength, power and shoulder range of motion are key factors for serve speed in young tennis players.
Tipo documento :
application/pdf
Derechos de acceso:
info:eu-repo/semantics/openAccess
DOI :
https://doi.org/10.1371/journal.pone.0221761
Aparece en las colecciones:
Artículos Patología y Cirugía



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