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Biomedical subjects

V Barták

Publications and source records attributed to V Barták.

At least 19 recordsLinked to original sources
PubMed1983

Coitarche and orgastic capacity.

In a group of 2,159 gynecological patients, aged 21 to 40, the age at the first sexual intercourse was ascertained and correlated with orgastic capacity during coitus in marital life. All had been married for at least 1 year. Of the examined females, 1,093 who reached orgasm mostly or always during sexual intercourse had their first coitus earlier than 394 women with rare and 165 women with no coital orgasm. The difference between orgastic women and examinees with rare orgasm was significant at the 0.01 level. The difference between females with adequate sexual reactivity and females with no coital orgasm was significant at the 0.001 level.

Adolescent↗
PubMed1981

Menarche and orgastic capacity.

In a group of 1,756 gynecological patients married for at least one year, three-quarters of whom were being treated for sterility, the relationship between age at menarche and the frequency of orgasm during coitus was examined. Statistical analysis revealed a close correlation between these two factors: in orgastic women, r = -0.878; in patients with rare or no orgasm, r = +0.914; and in persons with sexual dissatisfaction r = +0.722. The percentage of orgastic women decreased, and the number of patients with rare or no orgasm during coitus or with sexual dissatisfaction increased with advancing age of menarche.

Adult↗
PubMed1980

Changes in the sexual life of Czechoslovak women born between 1911 and 1958.

In the course of 26 years the authors have collected sexual history data via interview on 1779 gynecological patients, aged 20 to 40. All had been married for at least 1 year. None sought consultation for sexological difficulties. According to the year of birth they were divided into five subgroups from 1911-1920 up to 1951-1958. During that time the average age of women at first sexual intercourse decreased from 20.75 years to less than 18 years. The percentage of orgastic women grew from 31% to 79%, and high coital activity in marriage rose from 40% to 86%. There was a decreasing number of women who came from a family of more than six children. The percentage of women who had secondary or college education increased. A significant acceleration of menarche was found only in the subgroup of women born after 1950.

Adult↗
PubMed1980

[Fructose in ejaculate--correlation with age of proband (author's transl)].

No significant correlation was found to exist between the age of 95 males and fructose level in one millilitre of each one's ejaculate (correlation coefficient 4 = -0.139) nor between proband age and fructose level by volume of ejaculate (r = -1.141). Yet, fructose levels in ejaculate of men below 30 years of age tended quite often to be higher than those recorded from ejaculate of men above 40. The ejaculates tested were different in quality. Close and statistically important negative correlations between proband age and total fructose in ejaculate (r = -0.620) were recordable only from men with excellent average spermatozoan motility, one hour from ejaculation and not even largely reduced after another five hours.

Adult↗
PubMed1979

Sperm quality in adult diabetic men.

In 65 adult diabetic men and 77 control men without diabetes, both groups without any problems as to fertility, the following characteristics of ejaculate have been compared: volume of seminal fluid, sperm concentration per milliliter, total sperm count, sperm morphology, and motility at 1, 3, and 5 hours after ejaculation. In the entire diabetic group, sperm morphology and motility at 1 hour after ejaculation was statistically significantly worse. In 15 diabetics without sexual disurbances only sperm morphology was statistically significantly worse compared with an equally large control groups. In 50 diabetics with erection disturbances, sperm volume and motility in three successive observations were statistically remarkably lower. In younger age subgroups, the differences between diabetics and nondiabetics were more marked than in older age subgroups. The patients' age, when diabetes was discovered in them, did not essentially influence the quality of the ejaculate where diabetes lasted 8 or more years. Diabetics over 40 years' age displayed a significantly lower sperm volume. The total sperm count and motility at 3 and 5 hours after ejaculation, with 12 or more years' duration of diabetes, differed from diabetes of 2 years' duration. On the basis of these observations a negative influence of diabetes on the quality of the ejaculate seems unquestionable. There exists great variability in the adverse effect on the individual diabetic. Also, the individual characteristics of the ejaculate are affected, usually, to a different extent: the most frequently and markedly affected being the sperm motility, then morphology and/or volume of ejaculate, and the least often and the least conspicuously, the sperm count.

Adult↗
PubMed1979

[Fructose--its importance to quality of human ejaculate (author's transl)].

No statistically significant differences regarding fructose in one millilitre and ejaculated volume were established from a comparison between 95 ejaculates, among them 14 normospermatic, 47 asthenospermatic, 16 oligospermatic with more than ten million of spermia in one millilitre, six oligospermatic with less than ten million, and twelve azoospermatic. Very low and statistically insignificant correlations, also, were found to exist between the fructose level in a given ejaculate and other qualitative parameters, such as volume, sperm count, as well as morphology and motility of spermia one hour and five hours after ejaculation. The correlation coefficient usually was close to zero. These results seem to cast doubt at the diagnostic value of fructose determination in spermatological routine tests. However, studies into the correlations between fructose, glucose and, perhaps, other sugars in both clinically intact males and patients with metabolic disorders might produce new insights into the dynamics of glucose metabolism in ejaculated semen.

Fructose↗