Shoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional Study

# Background Throwing athletes present alterations in shoulder rotation range of motion (ROM), but not much is known about the relationship between these alterations and performance measurements in volleyball practitioners. # Purpose To compare the passive ranges of motion of internal rotation (I...

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Main Authors: Rafael Telles, Ronaldo Alves Cunha, André Lima Yoshimura, Alberto Castro Pochini, Benno Ejnisman, Renato Rozenblit Soliaman
Format: Article
Language:English
Published: North American Sports Medicine Institute 2021-04-01
Series:International Journal of Sports Physical Therapy
Online Access:https://doi.org/10.26603/001c.21243
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author Rafael Telles
Ronaldo Alves Cunha
André Lima Yoshimura
Alberto Castro Pochini
Benno Ejnisman
Renato Rozenblit Soliaman
author_facet Rafael Telles
Ronaldo Alves Cunha
André Lima Yoshimura
Alberto Castro Pochini
Benno Ejnisman
Renato Rozenblit Soliaman
author_sort Rafael Telles
collection DOAJ
description # Background Throwing athletes present alterations in shoulder rotation range of motion (ROM), but not much is known about the relationship between these alterations and performance measurements in volleyball practitioners. # Purpose To compare the passive ranges of motion of internal rotation (IR), external rotation (ER), and total rotation motion (TRM) of the shoulder in dominant and nondominant limbs of young volleyball athletes and to investigate their relationship with ball speed during serves with and without precision (inside and outside court, respectively). The possible association of anthropometrics and competitive practice time with these velocities was also investigated. # Study Design Cross-sectional study. # Methods Fifty-seven male volleyball athletes (mean age 17.11 ± 1.88 y; weight 74.68 ± 9.7 kg; height 1.87 ± 0.09 cm) were evaluated for shoulder IR and ER with a bubble goniometer and serve speed inside and outside court was measured with a radar gun. Simple and multiple regression analyses were applied to investigate associations of ROM, anthropometrics, and competitive practice time with serve speed. # Results Dominant shoulders had diminished IR ROM compared to nondominant shoulders (59.1º ± 16.7º vs 66.4º ± 16.9º; *p* < 0.001) as well as diminished TRM (173.5º ± 31.8º vs 179.1º ± 29.9º; *p* < 0.001). Simple regression showed negative association between dominant ER and serve speed outside the court (*p* = 0.004). Positive associations existed between age and serve speed in both conditions (*p* < 0.001), BMI and speed inside (*p* = 0.009) and outside the court (*p* = 0.008), and between competitive practice time and speed inside (*p* = 0.008) and outside court (*p* = 0.003). However, multiple analysis confirmed only age (*p* < 0.001) and BMI to be associated with ball velocities (inside court *p* = 0.034; outside court *p* = 0.031). # Conclusion The results of this study demonstrated that young volleyball athletes presented lower IR and TRM of the shoulder in the dominant upper limb. Age and BMI were directly associated with ball velocities when serving. Passive rotation ROM did not have a relationship with this performance measurement. # Level of Evidence 3b
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series International Journal of Sports Physical Therapy
spelling doaj-art-eeb6137d01c84706b2d535ae1ba3c5672025-02-11T20:29:32ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962021-04-01162Shoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional StudyRafael TellesRonaldo Alves CunhaAndré Lima YoshimuraAlberto Castro PochiniBenno EjnismanRenato Rozenblit Soliaman# Background Throwing athletes present alterations in shoulder rotation range of motion (ROM), but not much is known about the relationship between these alterations and performance measurements in volleyball practitioners. # Purpose To compare the passive ranges of motion of internal rotation (IR), external rotation (ER), and total rotation motion (TRM) of the shoulder in dominant and nondominant limbs of young volleyball athletes and to investigate their relationship with ball speed during serves with and without precision (inside and outside court, respectively). The possible association of anthropometrics and competitive practice time with these velocities was also investigated. # Study Design Cross-sectional study. # Methods Fifty-seven male volleyball athletes (mean age 17.11 ± 1.88 y; weight 74.68 ± 9.7 kg; height 1.87 ± 0.09 cm) were evaluated for shoulder IR and ER with a bubble goniometer and serve speed inside and outside court was measured with a radar gun. Simple and multiple regression analyses were applied to investigate associations of ROM, anthropometrics, and competitive practice time with serve speed. # Results Dominant shoulders had diminished IR ROM compared to nondominant shoulders (59.1º ± 16.7º vs 66.4º ± 16.9º; *p* < 0.001) as well as diminished TRM (173.5º ± 31.8º vs 179.1º ± 29.9º; *p* < 0.001). Simple regression showed negative association between dominant ER and serve speed outside the court (*p* = 0.004). Positive associations existed between age and serve speed in both conditions (*p* < 0.001), BMI and speed inside (*p* = 0.009) and outside the court (*p* = 0.008), and between competitive practice time and speed inside (*p* = 0.008) and outside court (*p* = 0.003). However, multiple analysis confirmed only age (*p* < 0.001) and BMI to be associated with ball velocities (inside court *p* = 0.034; outside court *p* = 0.031). # Conclusion The results of this study demonstrated that young volleyball athletes presented lower IR and TRM of the shoulder in the dominant upper limb. Age and BMI were directly associated with ball velocities when serving. Passive rotation ROM did not have a relationship with this performance measurement. # Level of Evidence 3bhttps://doi.org/10.26603/001c.21243
spellingShingle Rafael Telles
Ronaldo Alves Cunha
André Lima Yoshimura
Alberto Castro Pochini
Benno Ejnisman
Renato Rozenblit Soliaman
Shoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional Study
International Journal of Sports Physical Therapy
title Shoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional Study
title_full Shoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional Study
title_fullStr Shoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional Study
title_full_unstemmed Shoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional Study
title_short Shoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional Study
title_sort shoulder rotation range of motion and serve speed in adolescent male volleyball athletes a cross sectional study
url https://doi.org/10.26603/001c.21243
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AT albertocastropochini shoulderrotationrangeofmotionandservespeedinadolescentmalevolleyballathletesacrosssectionalstudy
AT bennoejnisman shoulderrotationrangeofmotionandservespeedinadolescentmalevolleyballathletesacrosssectionalstudy
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