Correlation of Glenohumeral Internal Rotation Deficit and Total Rotational Motion to Shoulder Injuries in Professional Baseball Pitchers

摘要: Background: Glenohumeral internal rotation deficit (GIRD) indicates a 20° or greater loss of the throwing shoulder compared with nondominant shoulder.Purpose: To determine whether GIRD and in total rotational motion (external + rotation) nonthrowing correlate injuries professional baseball pitchers.Study Design: Case series; Level evidence, 4.Methods: Over 3 competitive seasons (2005 to 2007), passive range measurements were evaluated on dominant shoulders for 170 pitcher-seasons. This included 122 pitchers during data collection, which some measured multiple seasons. Ranges bubble goniometer preseason, by same examiner each year. External glenohumeral joint was assessed participant supine arm abducted 90° plane scapula,...