Date of Award


Document Type

Scholarly Project

Degree Name

Doctor of Physical Therapy (DPT)


Physical Therapy

First Advisor

Thomas Mohr


Electromyography -- methods; Movement Disorders -- physiopathology; Scapula -- physiopathology; Case Reports


Introduction. The purpose of this case study was to examine the differences in muscle activation between the right and left sided upper trapezius, middle trapezius, lower trapezius and serratus anterior in a participant with scapular dyskinesis.

Methods. EMG activity was recorded using a Noraxon TeleMyo2400 G2 telemetry unit with a sampling rate of 1 kHz on the aforementioned muscles.

Results. In comparing UE ratios of EMG activity, it appears that the left lower trapezius exerts a significant amount more of energy than the right lower trapezius.

Conclusion. This study may demonstrate the importance of bilateral lower trapezius muscular strength training in order to counteract the anterior tilt motion performed by the serratus anterior in patients with non-symptomatic scapular dyskinesis.