Association between time-to-ej aculation and the quality of semen obtained by masturbation
10.3969/j.issn.1673-4130.2014.12.007
- VernacularTitle:自慰取精时间与精液质量的相关性研究
- Author:
Wei WANG
- Publication Type:Journal Article
- Keywords:
time-to-ejaculation;
masturbation;
acute stress;
semen parameters
- From:
International Journal of Laboratory Medicine
2014;(12):1536-1538
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the association between the length of time-to-ejaculation and the quality of semen obtained by masturbation.Methods Ejaculates from 284 men under infertility assessment were analyzed according to World Health Organi-zation guidelines.Seminal neutralα-glucosidase (NAG)、zinc(Zn)and fructose(FRU)were also measured.All patients were divid-ed into three groups according to the length of time-to-ejaculation,including group A with time-to-ejaculation not more than 10 min, group B with time-to-ejaculation of 11-15 min and group C with time-to-ejaculation more than 15 min.Statistical analysis was per-formed.Results Time-to-ejaculation was negatively correlated with sperm concentration (r= -0.20,P= 0.02),total sperm count (r= -0.20,P= 0.04),NAG (r= -0.20,P= 0.01),total count of progressive motility (r= -0.40,P= 0.03)and fructose (r=-0.30,P= 0.02),respectively,but not correlated with age,sexual abstinence,semen volume,sperm motility and Zinc.Sperm con-centration,total sperm count and total count of progressive motility in were higher than group B and C (P<0.05),and fructose was higher than group C (P<0.05).Conclusion Time-to-ejaculation might be associated with semen parameters.Acute stress during semen collection via masturbation at a clinic could infect the quality of semen.
