Estudo da frequência de oscilação da musculatura do assoalho pélvico durante a contração por meio de dispositivo vaginal multidirecional

Abstract

Urogynecological disorders are countless, but urinary incontinence and genital prolapse have greater repercussion, with urinary incontinence as the most prevalent. Urinary incontinence symptoms interfere with the patient physical and mental health, taking him/her to isolation, depression and loss of self-esteem, which affects negatively his/her life quality. To objectively quantify the disorders reported by the individual and identified in the clinical examination is the first step to assessment and adequate physiotherapy program. Methods to assess pelvic floor function and strength can be classified into two categories: methods that measure contraction capacity (clinical observation, vaginal palpation, ultrasound and electromiography); and methods to quantify strength (vaginal palpation, perineometers, dynamometers, vaginal cones and multi-directional vaginal probes). Although all methods referred above are important to clinical diagnosis and physiotherapy intervention, more complex analyses of musculature behavior during its activation are necessary. The present study attempted to assess the pelvic floor musculature oscillation frequency during its contraction through the multi-directional vaginal probe. 29 healthy women were evaluated with of the multi-directional vaginal probe during three maximum muscles contractions. Fast Fourier Transform (FFT) was used to separate the frequency with more amplitude. Data distribution analysis used Shapiro-Wilk test and intra and inter rates reproducibility used Intraclass Correlation Coefficient (ICC). Frequency data were represented as mode and a =5% alpha was considered for statistical significance. The most present frequency in all walls was 0,07937 Hz. The data displayed a not-normal distribution and an intra-rates reliability for both examiners was not found. The analysis of the frequency dominion signal by FFT showed an oscillation frequency of 0,07937 Hz for each pelvic floor wall in women studied, but one cannot confirm that this is a precise value, because the methodology used for the signal collection was not adequate considering FFT analysis.