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首页> 外文期刊>The journal of sexual medicine >A new device for simultaneous measurement of pelvic floor muscle activity and vaginal blood flow: A test in a nonclinical sample
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A new device for simultaneous measurement of pelvic floor muscle activity and vaginal blood flow: A test in a nonclinical sample

机译：一种同时测量骨盆底肌肉活动和阴道血流的新设备：非临床样本中的测试

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Introduction. Dyspareunia in women, defined as persistent or recurrent genital pain associated with sexual intercourse, is hypothesized to be related to (fear associated) pelvic floor hyperactivity and to diminished sexual arousal. Psychophysiological research to support these hypotheses is scarce and concentrates mostly on the role of either pelvic floor activity or sexual arousal. To investigate both factors, a measurement device that enables simultaneous assessment of pelvic floor muscle activity and genital sexual arousal would be most optimal. Aim. The aim of this study was to test a new vaginal device-a vaginal photoplethysmograph with build-in surface electromyography (EMG)-that allows simultaneous assessment of pelvic floor muscle activity and vaginal blood flow. Main Outcome Measures. Genital arousal measured as vaginal pulse amplitude (VPA) and vaginal surface EMG. Methods. Thirty-six sexually functional women participated. To investigate the sensitivity of the device for changes in genital blood flow and involuntary changes in pelvic floor activity, VPA and vaginal surface EMG were monitored during exposure to sexual and anxiety-evoking film clips. In addition, vaginal surface EMG was monitored during voluntary flick and hold contractions. Results. VPA increased in response to the sexual film, and EMG values were significantly higher in response to the anxiety-evoking film. Higher EMG values in response to the anxiety film were associated with lower VPA. EMG during the instructed 3-second hold pelvic floor contractions showed, as expected, higher values during pelvic floor contractions with support of surrounding muscle groups, compared with pelvic floor muscles alone. Conclusion. The device is sensitive to changes in vaginal blood flow in response to sexual stimuli, and it is able to pick up small, involuntary changes in pelvic floor activity associated with anxiety. Also, the device is able to record changes in pelvic floor activity during voluntary pelvic floor contractions. This new device will be a valuable tool in further research on superficial dyspareunia.
机译：介绍。女性的性交困难被定义为与性交相关的持续性或复发性生殖器疼痛，据认为与（恐惧相关）骨盆底多动症和性唤起减弱有关。支持这些假说的心理生理学研究很少，主要集中在盆底活动或性唤起的作用上。为了调查这两个因素，最能同时评估骨盆底肌肉活动和生殖器性唤起的测量设备。目标。这项研究的目的是测试一种新的阴道装置-带有内置表面肌电图（EMG）的阴道光体积描记器-可以同时评估骨盆底肌肉活动和阴道血流量。主要观察指标。生殖器唤醒测量为阴道脉搏振幅（VPA）和阴道表面肌电图。方法。 36名具有性功能的妇女参加了会议。为了研究该设备对生殖器血流变化和盆腔活动非自愿变化的敏感性，在暴露于性和焦虑诱发性影片剪辑期间，对VPA和阴道表面EMG进行了监测。另外，在自愿轻弹和保持收缩期间监测阴道表面肌电图。结果。 VPA响应性膜而增加，而EMG值显着高于焦虑膜。对焦虑症膜反应较高的EMG值与较低的VPA有关。如预期的那样，在指导的3秒钟保持骨盆底收缩期间，肌电图显示，与单独的骨盆底肌肉相比，在有周围肌肉群支持的骨盆底收缩期间，EMG值更高。结论。该设备对响应性刺激的阴道血流变化敏感，并且能够吸收与焦虑相关的骨盆底活动的小的非自愿变化。而且，该设备能够记录自愿性骨盆底收缩期间骨盆底活动的变化。这种新设备将成为进一步研究浅表性痛经的有价值的工具。

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