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Comparison of shoulder joint rotation ranges in relation to anthropometric measures in baseball and softball pitchers
Jelínková, Kateřina ; Žáková, Lenka (advisor) ; Vomáčková, Helena (referee)
Title: Comparison of the shoulder joint rotation in relation to anthropometric measures in baseball and softball pitchers Objectives: The main objective of this study was to compare the ranges of shoulder joint rotations in male baseball and softball pitchers due to differences in pitching biomechanics. Furthermore, to determine the difference in range of motion to rotations on the dominant and non-dominant upper extremity and to determine the prevalence of glenohumeral internal rotation deficits of the shoulder. The subject was also investigated to find possible relationships between measured anthropometric (HK length, arm span, biacromial width) values and goniometric values of range of motion into rotations including the prevalence of glenohumeral deficit. Methods: The research sample included 20 actives Czech Extraliga baseball and softball players, who were divided by sport for the purpose of the study. The baseball group included 10 probands (10 male, aged 25.1 ± 3.5 years, height 185.5 ± 7.8 cm, weight 93.7 ± 9.7 kg, years baseball of participation 14.9 ± 3.8 years). The softball group also included 10 probands (10 male, aged 23.1 ± 2.5 years, height 183.2 ± 8.1 cm, weight 88 ± 11.9 kg, years softball of participation 12.2 ± 1.8 years). None of the players reported an upper extremity injury...
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