Influence of ejaculation frequency on seminal parameters

dc.contributor.authorMayorga-Torres, B. Jose Manuelen_ZA
dc.contributor.authorCamargo, Mauricioen_ZA
dc.contributor.authorAgarwal, Ashoken_ZA
dc.contributor.authorDu Plessis, Stefan S.en_ZA
dc.contributor.authorCadavid, Angela P.en_ZA
dc.contributor.authorMaya, Walter D. Cardonaen_ZA
dc.identifier.citationMayorga-Torres, B. J. M. 2015. Influence of ejaculation frequency on seminal parameters. Reproductive Biology and Endocrinology, 13:47, doi:10.1186/s12958-015-0045-9.
dc.identifier.issn1477-7827 (online)
dc.descriptionCITATION: Mayorga-Torres, B. J. M. 2015. Influence of ejaculation frequency on seminal parameters. Reproductive Biology and Endocrinology, 13:47, doi:10.1186/s12958-015-0045-9.
dc.descriptionThe original publication is available at
dc.description.abstractBackground: Several factors have been shown to influence semen parameters, one of which is sexual abstinence; a clinical criteria included in the semen evaluation to provide maximum sperm quality. The aim of the present study was to assess the effect of a daily ejaculation frequency on conventional and functional semen parameters. Methods: Semen samples were collected daily over a period of two weeks of which every second sample per person was processed and analyzed according to the World Health Organization guidelines. Furthermore, mitochondrial function, intracellular reactive oxygen species production and sperm DNA fragmentation were evaluated by flow cytometry. Results: Total sperm count and seminal volume per ejaculation declined and remained decreased for the duration of the daily ejaculation period. However, conventional parameters such as sperm concentration, motility, progressive motility, morphology, vitality and functional parameters such as sperm plasma membrane integrity, mitochondrial membrane potential and DNA fragmentation was not significantly affected and remained similar to the initial measurement throughout the daily ejaculation period. Despite intra- and inter individual variations, the average values of the basic semen parameters remained above the WHO (2010) reference values throughout the daily ejaculation period. Interestingly, a decreasing trend in intracellular ROS production was observed, although statistically not significant. Conclusions: The study shows that an extended 2 week period of daily ejaculation does not have major clinical effects on conventional and functional seminal parameters.en_ZA
dc.format.extent7 pages
dc.publisherBioMed Central
dc.subjectSperm qualityen_ZA
dc.subjectEjaculation frequencyen_ZA
dc.subjectSeminal parametersen_ZA
dc.subjectSemen -- Analysisen_ZA
dc.subjectReproductive healthen_ZA
dc.titleInfluence of ejaculation frequency on seminal parametersen_ZA
dc.description.versionPublisher's version
dc.rights.holderAuthors retain copyright

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