Self-palpation Feedback for Abdominal Hollowing Exercise

PURPOSE The purpose of this study was to investigate abdominal muscles’ thickness change during abdominal hollowing with self-palpation feedback. METHODS Twenty six healthy males participated in this study. Subjects were instructed how to perform AHE on hook-lying position. Ultrasound images (transverse abdominis (TA), internal oblique (IO), external oblique (EO)) were measured during resting and AHE using self-palpation feedback or pressure biofeedback. RESULTS TA thickness increased significantly with both self-palpation feedback and pressure biofeedback groups (p