Efficacy of Extracorporeal Biofeedback Device for Post-prostatectomy Incontinence

Prostate cancer patients of intervention group will received extracorporeal biofeedback device (Any Kegel) for pelvic floor muscle exercise (PFME) to improve the post-prostatectomy incontinence after robot-assisted laparoscopic radical prostatectomy. Enrolled patients in intervention group should be performed PFME regularly, based on following protocols: total exercise time (10 minutes/day), intensity (1.2 kgf), tension duration (10 sec/ 1 contraction), total exercise number (4 times/day)