Isokinetic testing of the shoulder abductors and adductors: windowed vs nonwindowed data collection

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Bibliographic Details
Title translated into German:Isokinetisches Testen der Schulterabduktoren und -adduktoren: Datenerfassung
Author:Wilk, Kevin E.; Arrigio, Christopher A.; Andrews, James R.
Published in:Journal of orthopaedic & sports physical therapy
Published:15 (1992), 2 , S. 107-112, Lit.
Format: Publications (Database SPOLIT)
Publication Type: Journal article
Media type: Print resource
ISSN:0190-6011, 1938-1344
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Identification number:PU199405056089


The manner of acquiring strength-testing data may influence the results of an investigation. The purpose of this study was to determine if a significant difference exists between windowed and unwindowed data collection during isokinetic testing of the shoulder abductors/adductors. Fifty healthy professional baseball pitchers participated in this study. Testing was performed on a Biodex isokinetic dynamometer at 180 and 300 degrees/s for both the throwing and nonthrowing shoulders. Testing procedures regarding testing protocol, repetitions, positioning, and stabilization followed established guidelines for each subject. Statistical analysis was performed using a paired t-test with a p<0.01 level of significance. Statistically significant differences were demonstrated between windowed and unwindowed mean peak torque data for both shoulders at both test speeds. The results indicated an average nonthrowing arm difference of 20.2 ft/lbs at 180 degrees/s and 51.7 ft/lbs at 300 degrees/s for the abductors. This investigation offers clinical relevance for those using isokinetic testing of the shoulder abductors/adductors in demonstrating the significant differences between windowed and unwindowed data, identifying torque spike data misinterpretation, and describing a clinical means of controlling aberrant torque production during testing. Verf.-Referat (gekuerzt)