Biofeedback: Upon delivering appropriate consent/assent forms, patients may begin biofeedback sessions with the new system. The patients will undergo 3 weekly sessions each lasting 1 hour. At each session, patients will have EMG-surface electrode patches (Kendall, 1050NPSM Neonatal Electrodes-Prewired, Small Cloth) placed at the 3 and 9 o'clock positions on the perineum to measure electrical activity of the pelvic floor muscle group. An additional surface electrode patch will be placed on the rectus abdominus to measure abdominal muscle activity. All interactive biofeedback testing will be conducted by American Family Children's Hospital nurses that are experienced in standard biofeedback techniques.