Abstract
BackgroundThe purpose of this study was to clarify the reliability and validity of pelvic floor muscle (PFM) strength assessment using the MizCure perineometer in healthy women.MethodsTwenty healthy women (age 20–45 years) participated in this study. The vaginal pressure measured using the MizCure and validated Peritron perineometers were repeated during PFM contraction in the supine and standing positions. All women were evaluated twice by examiners 1 and 2. Following the measurements in the first session (Test 1), they were repeated after an interval of between 2 and 6 weeks (Test 2). Within- and between-session intra- and inter-rater reliabilities in vaginal pressure were analyzed using intraclass correlation coefficients (ICC) (1, 1) and (2, 1), respectively. Validity was assessed by Pearson’s product-moment correlation coefficient and Spearman’s rank correlation analysis.ResultsWithin-session intra-rater reliabilities for both examiners 1 and 2 for all vaginal pressures in Tests 1 and 2 were 0.90–0.96 for both perineometers. Between-session intra-rater reliability for the MizCure was 0.72–0.79 for both positions for examiner 1, and 0.63 in the supine position and 0.80 in the standing position for examiner 2. Inter-rater reliability for Test 1 was 0.91 in the supine position and 0.87 in the standing position for the MizCure. The vaginal pressures using the MizCure and Peritron were significantly associated with the supine position (r = 0.68, P < .001) and the standing position (rs = 0.82, P < .001).ConclusionMizCure perineometer is a validated tool to measure PFM strength in both supine and standing positions in healthy nulliparous women.
Highlights
The purpose of this study was to clarify the reliability and validity of pelvic floor muscle (PFM) strength assessment using the MizCure perineometer in healthy women
We demonstrated that 2D transperineal ultrasound is useful to assess PFM function in patients with pelvic organ prolapse [14]
The reliability and validity of PFM strength assessment using the MizCure perineometer were examined in healthy women
Summary
The purpose of this study was to clarify the reliability and validity of pelvic floor muscle (PFM) strength assessment using the MizCure perineometer in healthy women. Voluntary PFM contraction is evaluated by assessing pelvic floor elevation, muscle strength, endurance, and the sensitivity of vaginal palpation for quantifying sustained contractions [3] and discriminating variations in force is less than that of other techniques, and it has been shown to have limited reliability even when performed by experienced examiners [4, 5]. Abe‐Takahashi et al BMC Women’s Health (2020) 20:257 lower in women with stress incontinence than in healthy women [6] It is used as a teaching tool and as motivation for conducting training exercises [7]. PFM evaluation is recommended by the International Continence Society and considered essential to assess a post-therapeutic intervention effect [9]
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