Upper extremity range of motion and isokinetic strength of the internal and external shoulder rotators in major league baseball players

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Deutscher übersetzter Titel:Bewegungsspannweite im Bereich der oberen Extremitaeten und isokinetische Kraft der internen und externen Schulterrotatoren bei Baseballspielern der hoechsten Liga
Autor:Brown, Larry P.; Niehues, Sandra L.; Harrah, Andrew; Yavorsky, Patricia; Hirshman, H. Paul
Erschienen in:The American journal of sports medicine
Veröffentlicht:16 (1988), Bd. 6, S. 577-585, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0363-5465, 1552-3365
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Erfassungsnummer:PU198910036653
Quelle:BISp

Abstract

Forty-one professional baseball players volunteered for upper extremity range of motion measurements and isokinetic testing for internal and external shoulder rotation. Pitchers demonstrated 9 degrees more external shoulder rotation with the arm abducted, 5 degrees more forearm pronation, and 9 degrees less shoulder extension on the dominant side compared with the dominant side of position players. Pitchers also demonstrated 9 degrees more external rotation in abduction, 5 degrees less shoulder flexion, 11 degrees less horizontal extension, 15 degrees less internal rotation in abduction, 6 degrees less elbow extension, 4 degrees less elbow flexion, and 5 degrees less forearm supination on the dominant side compared with their nondominant side. Position players demonstrated 8 degrees more external rotation in abduction, 14 degrees less horizontal extension, and 8 degrees less elbow extension on the dominant side compared with their nondominant side. Greater torque was produced by pitchers compared with position players for the dominant and nondominant arm at all test speeds for both mean peak and mean average torque. Greater torque was produced by the dominant arm compared with the non-dominant arm also at all test speeds for both of these measurements. No difference was found between the rotation ratios for either arm, for either group, for all speeds. Verf.-Referat