Pradal-Prat D, Peray P, Mares P, Costa P
Service d'Explorations Fonctionnelles du Système Nerveux, C.H.U, Nîmes, France.
Electromyogr Clin Neurophysiol. 1998 Sep;38(6):367-70.
This prospective study was undertaken on 190 subjects who had no prior central or peripheral nerve supply pathology and where the value of the sacral reflex latency was compared by age and sex in order to determine precise norms. There were 90 men whose age averaged 56.9 +/- 13 years and 100 women with an average age of 54 +/- 13.1. The reflex was obtained by stimulating the dorsal nerve of the penis and the clitoris and taking a reading in the intermediate part of the external anal sphincter muscle. An averaging technique was used (over 30 stimulation occurrences). The average intensity of the stimulation was 15 mA. The value of the stimulus reaction latency taken at the positive peak was analyzed statistically. The average value was 37.6 +/- 5.36 ms in male subjects and 46.6 +/- 8.08 in female subjects. In men, values varied from 36.6 +/- 4.26 ms at under 35 years of age and reached 42 +/- 3.52 ms at over 75 years. In women, values varied from 37.33 +/- 7.69 ms at under 35 years to 55.6 +/- 4.39 ms at over 75 years of age. In a previous article we discussed ageing features in nerves and muscles. These features are largely responsible for the occurrence of static pelvic problems. The purpose of this study is to compare the sacral reflex latency by sex and age in normal subjects.
这项前瞻性研究针对190名既往无中枢或周围神经供应病变的受试者开展，通过比较年龄和性别的骶反射潜伏期来确定精确的标准值。其中男性90名，平均年龄56.9±13岁；女性100名，平均年龄54±13.1岁。通过刺激阴茎背神经和阴蒂，并在肛门外括约肌中间部分读取数据来获得反射。采用平均技术（超过30次刺激）。刺激的平均强度为15毫安。对在正峰值处测得的刺激反应潜伏期值进行统计学分析。男性受试者的平均值为37.6±5.36毫秒，女性受试者为46.6±8.08毫秒。在男性中，35岁以下者的值为36.6±4.26毫秒，75岁以上者达到42±3.52毫秒。在女性中，35岁以下者的值为37.33±7.69毫秒，75岁以上者为55.6±4.39毫秒。在之前的一篇文章中，我们讨论了神经和肌肉的衰老特征。这些特征在很大程度上导致了静态盆腔问题的发生。本研究的目的是比较正常受试者中按性别和年龄划分的骶反射潜伏期。
