Date of Award
Doctor of Physical Therapy (DPT)
Abdominal Muscles -- physiology; Muscle Contraction
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
Freie, Jenni L.; Kruse, Jan L.; Kvien, Amanda M.; and Rzeszutko, Kimberly M., "Effectiveness of Pressure Biofeedback in Activation of Transversus Abdominis during the Abdominal Draw-In Maneuver" (2006). Physical Therapy Scholarly Projects. 151.