Anterior shoulder laxity is not correlated with medial elbow laxity in high school baseball players.
BACKGROUND
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.


METHODS
Cohort design.


METHODS
Local high schools.


METHODS
Thirty healthy high school male athletes.


METHODS
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.
Friscia
Brian A
BA
PE and Athletics at Rollins College in Winter Park, FL, USA. bfriscia@rollins.edu
Hammill
Robert R
RR
McGuire
Brian A
BA
Hertel
Jay N
JN
Ingersoll
Christopher D
CD
D000293:Adolescent; D001484:Baseball; D001696:Biomechanical Phenomena; D015331:Cohort Studies; D004551:Elbow Joint / Q000502:physiology* / Q000503:physiopathology; D006801:Humans; D007593:Joint Instability; D008297:Male; D016059:Range of Motion, Articular / Q000502:physiology*; D012785:Shoulder Joint / Q000502:physiology* / Q000503:physiopathology; D013314:Stress, Mechanical