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Comparison of Menstrual Function Among Sprinters, Long Marathon Runners, and Non-Athletic Females

Comparison of Menstrual Function Among Sprinters, Long Marathon Runners, and Non-athletic Females: An Observational Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05928650
Enrollment
42
Registered
2023-07-03
Start date
2023-05-01
Completion date
2023-07-31
Last updated
2023-08-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Menstruation Disturbances

Keywords

Menstrual function, Serum estradiol levels, Sprinters, Long Marathon Runners, Non-Athletic Females

Brief summary

The purpose of this study is to compare between sprinters and long marathon in menstrual characteristics and serum estradiol level.

Detailed description

Menstrual function and dysfunction conversations have long been stigmatized both in the general population and in sport settings (O'Flynn, 2006). However, Discussions of menstruation in the sport context often focuses on the impact of physical menstrual symptoms and dysfunction on activities such as training and sport performance (Bruinvels et al., 2016; Knowles et al., 2019). In addition, no study had been compare between sprinters and long-marathon runners in menstrual characteristics and estradiol level. Therefore, the purpose of this study to compare between sprinters and long marathon in menstrual characteristics and serum estradiol level.

Interventions

OTHEREvaluation of menstrual function

Evaluation of serum estradiol levels and menstrual history characteristics between sprinters, long marathon runners and non-athletes.

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
FEMALE
Age
16 Years to 19 Years

Inclusion criteria

* Virginal females. * Their age ranged from 16 to 19years. * All females had the same socio-economic status. For athletic groups only: * They have been starting the practice of sport at least one year before the onset of menarche.

Exclusion criteria

* Females who had been used oral contraceptives or any hormonal treatment in the previous six months. * Smoking. * History of chronic disease. * Having any psychiatric problems. For athletic groups only: * injured females who were absent from training for at least three months.

Design outcomes

Primary

MeasureTime frameDescription
serum estradiol level3 monthsBlood samples were obtained on the 2nd day of the menstrual cycle at 10.00 a.m. following overnight fasting and rest. The athletic females were instructed to refrain from performing strenuous exercise on the day of sampling. Blood samples were separated and stored at -80°C till analysis of serum estradiol levels. Serum estradiol levels were measured to evaluate the menstrual function. The manufacturer indicated the following reference intervals for healthy females: Estradiol 40-350 pg/ml.
Menstrual history characteristics3 monthsThe age at menarche (in years), the number of menstrual cycles in the past year, and the length of menstrual cycles (in days) were collected through a self-administered questionnaire to evaluate the menstrual status of each female participant.
Age of participation to sport3 monthsIt was taken in years from each female athlete through a self-administered questionnaire.
Weekly training workload3 monthsIt was taken in hours per week from each female athlete through a self-administered questionnaire.
Training experience3 monthsThe training experience of the athlete was then calculated by subtracting her age of participation in sport from her chronological age.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026