RESUMO
CONTEXT: Uninjured baseball players have been shown to have increased anterior glenohumeral joint laxity, which may result in adaptive changes at the medial elbow. OBJECTIVE: To determine the relationship between anterior shoulder laxity and medial elbow laxity in both arms of baseball and nonbaseball high school athletes and compare the laxity of dominant and nondominant shoulders and elbows of high school baseball and nonbaseball players. DESIGN: Cohort design. SETTING: Local high schools. PARTICIPANTS: Thirty healthy high school male athletes. OUTCOME MEASURES: Anterior shoulder and medial elbow laxity measurements were taken bilaterally with the Ligmaster. RESULTS: Dominant and nondominant shoulder laxity was significantly greater in the nonbaseball players than the baseball players. No other significant relationships existed. CONCLUSIONS: High school baseball players exhibit less anterior shoulder laxity than do nonbaseball players. No relationship exists between anterior shoulder and medial elbow laxity in high school baseball players.
