Date of Award

1998

Degree Type

Thesis

Degree Name

Physical Therapy (M.S.)

Department

Physical Therapy

Abstract

The purpose of this study was to evaluate muscle activity of pectoralis major, serratus anterior, teres major, and latissimus dorsi during an exercise performed on the Cufif Link utilizing normal subjects. Forty-four subjects performed a rotation exercise in a clockwise direction at a speed of 58 beats per minute. Three trials were completed using the push-up handles and the large-diameter hemisphere. Surface electromyography recorded the activity of the four muscles. Recorded EMG values were normalized as a percentage of the maximal voluntary isometric contraction (MVTC). A two-way ANOVA was used to compare mean normalized muscle activity for each muscle and between muscle comparisons. The results showed that mean percent MVIC for latissimus dorsi was 7.8%, serratus anterior 19.3%, and teres minor 22.0%. Latissimus dorsi was found to be significantly lower than serratus anterior and teres minor. This study was an initial attempt at assessing the value of the Cuff Link in the rehabilitation process.

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