"Effectiveness of Pressure Biofeedback in Activation of Transversus Abd" by Jenni L. Freie, Jan L. Kruse et al.

Date of Award

2006

Document Type

Scholarly Project

Degree Name

Doctor of Physical Therapy (DPT)

Department

Physical Therapy

First Advisor

Schawnn Decker

Keywords

Abdominal Muscles -- physiology; Muscle Contraction

Abstract

Study Design: Repeated Measures Design.

Objectives: To compare the recruitment of the transversus abdominis and internal oblique during the performance of the supine abdominal draw-in maneuver with the use of pressure biofeedback and without the use of pressure biofeedback. Muscle recruitment will be measured through the use of surface electromyography (EMG).

Background: Surface EMG reliability and validity is reported for transversus abdominis.

Methods: Thirty-nine healthy subjects of the ages 18 to 54 were tested. The subjects were instructed and performed practice trails of the supine draw-in maneuver with and without pressure biofeedback prior to data collection. EMG muscle activity was recorded during a 30 second hold of the supine draw-in maneuver.

Results: Data was analyzed on 32 subjects. There was no significant difference in the EMG activity of the transversus abdominis during the performance of the supine

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