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Analysis of pelvic floor muscle electromyography parameters in women with or without sexual dysfunction

chunyan Wang , Yan Che, Yumei Zhang, Tingfeng Guan, Jie Wang, Xinying Du

Abstract

Objective：To investigate the differences in pelvic floor muscle (PFM) electromyography (EMG) parameters between women with or without sexual dysfunction (FSD) and their correlations. Methods：Women who voluntarily participated in a questionnaire-based survey on sexual function and underwent PFM EMG in Weifang People's Hospital during the period from March 2021 to December 2021 were retrospectively enrolled. The female sexual (dys)function was measured using the Female Sexual Function Index (FSFI). Glazer PFM EMG was performed using a Melander instrument (MLD A2 Deluxe). The differences in PFM EMG parameters between women with or without FSD were compared, and the relationships between PFM EMG parameters and FSD were analyzed using multiple linear regression models. Results :A total of 305 women were enrolled, with 163 in the FSD group and 142 in the non-FSD group. Comparisons of PFM EMG parameters between these two groups revealed that the FSD group had significantly higher peak EMG amplitude during the phasic (flick) contractions and shorter recovery latency during the tonic contractions than the non-FSD group (both P<0.05). Multivariate linear regression suggested that the peak EMG amplitude during the phasic (flick) contractions was 5.39 μV higher in the FSD group than in the non-FSD group, while the recovery latency during the tonic contractions was 0.29 seconds shorter (both P<0.05). Conclusions: The results of the pelvic floor EMG in this study suggest that the pelvic floor muscles of women with FSD may be more susceptible to fatigue and may have poorer coordination of their pelvic floor muscles.

SH24026  Accepted 18 April 2024

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