Date Approved


Graduate Degree Type


Degree Name

Physical Therapy (M.S.)

Degree Program

Physical Therapy


The purpose of this pilot study was to provide isokinetic shoulder strength data on college women softball players. Ten women ranging in age from 18 to 21 years old were tested. The Cybex II+, U.B.X.T. and HUMAC system were utilized to test the strength of external rotators, internal rotators, horizontal abductors, and horizontal adductors at 90, 180, and 300 deg/sec. Mean peak torque values were consistently greater in the dominant arm but there were no statistically significant differences in agonist to antagonist ratios between arms. The ratios of external rotators to internal rotators were consistently 2:3 while the ratios of horizontal adductors to horizontal abductors ranged from 3:4 to 1:2 throughout the velocity spectrum. A weak positive correlation was found to exist between total body weight and horizontal abduction in the nondominant arm at 90 deg/sec and horizontal abduction in the dominant arm at 180 deg/sec.


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