Levine L A, Carroll R A
Department of Urology, Rush-Presbyterian-St. Luke's Medical Center, Chicago, Illinois.
J Urol. 1994 Oct;152(4):1103-7. doi: 10.1016/s0022-5347(17)32514-4.
Nocturnal penile tumescence and rigidity data were collected during 3 successive nights of home monitoring from 44 men screened for normal sexual functioning. The subjects were well distributed during the interval with an age of 31 to 81 years. Penile brachial indexes, biothesiometry measures and testosterone levels were evaluated. Two new time-intensity measures of tumescence (tumescence activity units) and rigidity (rigidity activity units) were used to summarize erectile activity. A high correlation (r > 0.84, p < 0.001) was found between these summary parameters. It was observed that at least 2 nights of monitoring were required to characterize a subject adequately because some men had single nights with no measurable erectile activity. There were low correlations among penile brachial index, biothesiometry and testosterone outcomes, and nocturnal penile tumescence and rigidity measurements. There was a decrease in measurements of tip rigidity with increasing subject age (r = -0.238, p < 0.05) and an increase in tip rigidity associated with penile girth during erectile events (r = 0.505, p < 0.001). Cumulative distributions of rigidity and tumescence activity units were developed to permit a simple, direct comparison of other nocturnal penile tumescence and rigidity findings to results in the study population.
在对44名接受正常性功能筛查的男性进行连续3个晚上的家庭监测期间，收集了夜间阴茎勃起肿胀和硬度数据。受试者年龄在31至81岁之间，在该时间段内分布良好。评估了阴茎肱动脉指数、生物感觉测量法指标和睾酮水平。使用两种新的勃起肿胀（勃起肿胀活动单位）和硬度（硬度活动单位）的时间强度测量方法来总结勃起活动。发现这些总结参数之间存在高度相关性（r > 0.84，p < 0.001）。观察到，由于一些男性有单个晚上没有可测量的勃起活动，因此需要至少2个晚上的监测才能充分描述一名受试者的情况。阴茎肱动脉指数、生物感觉测量法指标与睾酮结果，以及夜间阴茎勃起肿胀和硬度测量之间的相关性较低。随着受试者年龄的增加，阴茎头部硬度测量值下降（r = -0.238，p < 0.05），而在勃起事件期间，阴茎头部硬度与阴茎周长相关增加（r = 0.505，p < 0.001）。绘制了硬度和勃起肿胀活动单位的累积分布图，以便将其他夜间阴茎勃起肿胀和硬度研究结果与研究人群的结果进行简单、直接的比较。
