Date of Award


Degree Type


Degree Name

Physical Therapy (M.S.)


Physical Therapy

First Advisor

Karen Ozga

Second Advisor

Timothy Lesnick

Third Advisor

Barb Hoogenboom


The purpose of this study was to determine if a relationship exists between voice command intensity and maximum torque production of an isometric muscle contraction. Thirty nine healthy subjects ranging in age from 18-30 participated in this study. The maximum torque production of triceps brachii was measured using a Cybex II+ isokinetic dynamometer in response to varied, tape recorded voice commands. Data was analyzed by a series of analysis of covariance (ANCOVA) and analysis of variance (ANOVA) for an unbalanced incomplete-block crossover trial design. No significance was found between voice intensity and peak torque. Gender was found to impact torque production, and accounted for all differences noted (P {dollar}<{dollar}.05). Further research in this area is warranted due to small sample size and the results of this study conflicting with those of an earlier study.


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