参与本前瞻性研究的190位人员均无中枢或外周性神经疾病。并按性别分为两大组:其中男性90例,年龄为31～77岁,平均56.9±13岁;女性100例,年龄为26～79岁,平均54±13.1岁。各大组再按10岁为一个年龄段细分为6个亚组。测得的骶反射潜伏期值按年龄和性别进行比较,以确定准确的标准值。 通过电极刺激阴茎和阴蒂的背神经引起反射,在 None of the 190 participants in this prospective study had central or peripheral neurological disease. They were divided into two groups according to sex: 90 males, ranging in age from 31 to 77 years, with an average of 56.9 ± 13 years; 100 females, aged from 26 to 79 years, with an average of 54 ± 13.1 years. The major groups are further subdivided into 6 sub-groups by age of 10 years. The measured sacral reflex latency values ​​were compared by age and sex to determine the exact standard value. Through the electrodes to stimulate the dorsal nerve of the penis and clitoris to cause reflexes