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Pelvic exercises are effective when they are properly indicated and do no present collateral effects, but there are doubts as the best way to apply them for the pelvic floor muscles. Using apparatus that inform the patient through vital visual signs or sonorous (biofeedback), which muscle or muscle group are used in each exercise, it permits that the patient is conscious of a muscle that is not used a lot, like the elevator of the anus. The Biofeedback apparatus (BFB) leads to learning through auto-correction, in a natural way. It may be active, commanded by the patient, where the starting point in the central nervous system is the front lobe, or still passive where the starting point is the pelvic floor, through electric stimulation. Previously to the use of the BFB the patient must be informed about basic anatomic notions, the function of the pelvic floor and the sphyncterian vesicle equilibrium. In urinary incontinence this technique is applied in four levels: muscular, vesicle, sphyncterian and vesicle-sphyncterian 20. In this way it is possible to modify or intensify a muscular activity.Kegel’s perineometer is a feedback instrument, and other similar apparatus have been developed 18. Different authors have indicated pelvic floor exercises, using or nor using biofeedback. STORDDARD 21 using a supervised exercise program during 10 weeks, with a perineomenter, in 34 women with stress urinary incontinence, noted a subjective improvement in 91% of the patients, of which 38% were continent, 32% presented an important improvement and 21% a light improvement.CASTLENDEN et al 22 studying 19 incontinent women did in a group, only supervised exercises and in another group exercises with biofeedback, with the help of a perineometer. The authors referred better results in patients that used exercises with biofeedback. SHEPHERD & MONTGOMERY 23 made a similar preliminary study in 22 women, and in 10 of the 11 women that used the feedback; there was a subjective improvement, compared with 6 of the 11 using only the exercise program. BURGIO et al 24 using exercises with biofeedback for the rehabilitation of the pelvic floor observed a reduction of 82% in the incontinence episodes. They made another evaluation on the 6th and 12th month after the treatment, and noticed that the results were maintained. BERGHMANS et al 25 in 1996 made comparative techniques for the treatment of genuine stress incontinence, it is a training program of the pelvic floor and the same program associated to biofeedback during 20 sessions. They observed that the group that used the biofeedback, improvement was quicker, but there was no significant difference among these groups, both presented 55% improvement. GORDON et al 26 in 1999, treated 30 incontinent women with pelvic floor exercises and biofeedback, and they observed 46,7% of complete cure and 50% of improvement, in 3% there was no improvement. This way, we may affirm that the perineal exercises, when associated to biofeedback seem to produce better results in what concerns urinary incontinence.