**4. Underactive detrusor, bladder with increased cystometric capacity and underactive urination reflex**

The patients with long standing underactive detrusor and a weakened urination reflex were subjected to the same diagnostic procedures as the first two groups, and were taught to relax the pelvic floor muscles. The effect of the proposed treatment, education, and exercises was particularly spectacular in this group, since after we had taught them to urinate with relaxation of the pelvic floor muscles and referred them for rehabilitation of the pelvis in cases where the disturbances were severe, further treatment was no longer necessary, and the symptoms of urinary dysfunction did not recur. The EMG recordings of perineal muscles rsting tone done with vaginal probe were much lower than in patients without rehabilitation (Figs. 2a,b).

Since the patients in this group had normal urethral closure pressure, there was no UI. If we found disturbances of statics and functional mechanisms producing a tendency to UI due to overfilling, e.g. kinking of the urethra, with reduction of hernia, we referred the patient for appropriate surgical treatment, supplemented by rehabilitation process.
