CoChat
Sign Up
Cited by 114Ovarian function and disordersHypothalamic control of reproductive hormonesMenstrual Health and Disorders

The DOI matches its Crossref record; 41 of the 43 references it cites were found in a registry or an index.

Hyperandrogenism May Explain Reproductive Dysfunction in Olympic Athletes

HAGMAR, MAGNUS, BERGLUND, BO, BRISMAR, KERSTIN, HIRSCHBERG, ANGELICA LINDÉN·2009·Medicine & Science in Sports & Exercise
DOI 10.1249/mss.0b013e318195a21a
Open this paper in CoChat — free account

Abstract

PURPOSE: Female athletes are known to be at risk for reproductive dysfunction and osteopenia because of energy deficiency. Although endocrine balance and an optimal body composition are essential for top elite performance, these parameters have not yet been explored fully in Olympic sportswomen. The objective of this study, therefore, was to characterize the menstrual status, body composition, and endocrine balance in female Olympic athletes participating in different disciplines. METHODS: Ninety Swedish female Olympic athletes underwent a gynecologic examination that included vaginal examination by ultrasound and determination of body composition. In addition, blood samples were collected for the analysis of reproductive hormones and biomarkers of energy availability. RESULTS: Of all the athletes, 47% were using hormonal contraception (HC). Menstrual dysfunction (MD) was common (27%) among those not using HC and, particularly, in endurance athletes. However, the proportion of body fat and biomarkers of energy availability were within the normal ranges and none exhibited osteopenia. On the contrary, bone mineral density was generally high, particularly in the power athletes. The most common diagnosis associated with MD was polycystic ovary syndrome (PCOS) and not hypothalamic inhibition because of energy deficiency. CONCLUSIONS: Female Olympic athletes participating in different sports were found to have an anabolic body composition and biomarkers of energy availability within the normal ranges. Most cases of menstrual disturbances observed were due to PCOS. These findings challenge the contemporary concept that reproductive dysfunction in sportswomen is typically a consequence of chronic energy deficiency.

Overview

Integrity signals

Registry

Crossref · 10.1249/mss.0b013e318195a21a

Cites

41 of 41 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Verification

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Citations

Cites

Show all 43 references

Cited by

Sorted by citations

Related

See all

Metadata

Authors
HAGMAR, M., BERGLUND, B., BRISMAR, K., & HIRSCHBERG, A. L.
Affiliations
Karolinska Institutet (SE)
ORCID
Venue
Medicine & Science in Sports & Exercise
Publisher
Ovid Technologies (Wolters Kluwer Health)
Published
2009-06
Volume
41
Issue
6
Pages
1241-1248
ISSN
0195-9131 (ISSN-L)
DOI
10.1249/mss.0b013e318195a21a
OpenAlex
W2003398233
Cited by
114
References
43
Citations by year
2026: 4 · 2025: 8 · 2024: 5 · 2023: 11 · 2022: 8 · 2021: 10 · 2020: 7 · 2019: 7 · 2018: 8 · 2017: 9 · 2016: 4 · 2015: 3 · 2014: 7 · 2013: 4 · 2012: 7
FWCI
7.46
Type
journal article
Language
en
Open access
closed
Locations
  • Medicine & Science in Sports & Exercise (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Menstrual Health and Disorders
Keywords
hyperandrogenism, reproductive disorders, menstrual disorders, polycystic ovary syndrome, energy availability, body composition, bone mineral density, hormonal contraception, endurance athletes, power athletes, hypothalamic inhibition, energy deficiency
MeSH terms
Adult, Body Composition, Female, Humans, Polycystic Ovary Syndrome, Regression Analysis, Sports, Ultrasonography, Vagina, Biomarkers, Bone Density, Exercise Tolerance, Female Athlete Triad Syndrome

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review