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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North American Sports Medicine Institute
2021
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oai:doaj.org-article:eeb6137d01c84706b2d535ae1ba3c5672021-12-02T17:42:27ZShoulder Rotation Range of Motion and Serve Speed in Adolescent Male Volleyball Athletes: A Cross-Sectional Study10.26603/001c.212432159-2896https://doaj.org/article/eeb6137d01c84706b2d535ae1ba3c5672021-04-01T00:00:00Zhttps://ijspt.scholasticahq.com/article/21243-shoulder-rotation-range-of-motion-and-serve-speed-in-adolescent-male-volleyball-athletes-a-cross-sectional-study.pdfhttps://doaj.org/toc/2159-2896# 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 3bRafael TellesRonaldo Alves CunhaAndré Lima YoshimuraAlberto Castro PochiniBenno EjnismanRenato Rozenblit SoliamanNorth American Sports Medicine InstitutearticleSports medicineRC1200-1245ENInternational Journal of Sports Physical Therapy, Vol 16, Iss 2 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Sports medicine RC1200-1245 |
| spellingShingle |
Sports medicine RC1200-1245 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 |
| 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 |
| format |
article |
| 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 |
| title |
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_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_sort |
shoulder rotation range of motion and serve speed in adolescent male volleyball athletes: a cross-sectional study |
| publisher |
North American Sports Medicine Institute |
| publishDate |
2021 |
| url |
https://doaj.org/article/eeb6137d01c84706b2d535ae1ba3c567 |
| work_keys_str_mv |
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| _version_ |
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