The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Delayed Menarche and Amenorrhea of College Athletes in Relation to Age of Onset of Training
Abstract
Age at menarche and menstrual periodicity of 21 college swimmers and 17 runners were studied in relation to the age of initiating training. The 18 premenarche-trained athletes had a mean menarcheal age of 15.1 +/- 0.5 years, whereas the 20 postmenarche-trained athletes had a mean menarcheal age of 12.8 +/- 0.2 years, similar to that of the college control subjects, 12.7 +/- 0.4 years. Each year of training before menarche delayed menarche by five months (0.4 years). Of the premenarche-trained athletes, 61% had irregular menstrual cycles and 22% were amenorrheic, whereas 60% of the postmenarche-trained athletes had regular menstrual cycles and none were amenorrheic. Training increased the incidence of oligomenorrhea and amenorrhea among both premenarche- and postmenarche-trained athletes. Metabolic and hormonal changes consequent to an increased lean/fat ratio may explain these findings.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Frisch, R. E., & McArthur, J. W. (1974) · Science · doi:10.1126/science.185.4155.949 · Cited by 1,412
Self-citationAromatization of Androgens by Human Abdominal and Breast Fat Tissue1
NIMROD, A., & RYAN, K. J. (1975) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem-40-3-367 · Cited by 314
Cited by
Physical activity and cancer etiology: associations and mechanisms
McTiernan, A., Ulrich, C., Slate, S., & Potter, J. (1998) · Cancer Causes & Control · doi:10.1023/a:1008853601471 · Cited by 302
Leptin Treatment Rescues the Sterility of Genetically Obese ob/ob Males*
Mounzih, K., Lu, R., & Chehab, F. F. (1997) · Endocrinology · doi:10.1210/en.138.3.1190 · Cited by 482
Body mass index, physical activity and fecundability in a North American preconception cohort study
McKinnon, C. J., Hatch, E. E., Rothman, K. J., Mikkelsen, E. M., Wesselink, A. K., Hahn, K. A., & Wise, L. A. (2016) · Fertility and Sterility · doi:10.1016/j.fertnstert.2016.04.011 · Cited by 106
Medical Concerns in the Female Athlete
Committee on Sports Medicine and Fitness (2000) · PEDIATRICS · doi:10.1542/peds.106.3.610 · Cited by 80
Meacham, S., Taper, L., & Volpe, S. (1995) · The American Journal of Clinical Nutrition · doi:10.1093/ajcn/61.2.341 · Cited by 58
Metadata
- Authors
- Frisch, R. E.
- Venue
- JAMA: The Journal of the American Medical Association
- Publisher
- American Medical Association (AMA)
- Published
- 1981-10-02
- Volume
- 246
- Issue
- 14
- Pages
- 1559
- ISSN
- 0002-9955 (ISSN-L)
- 0098-7484
- OpenAlex
- W2062451992
- Cited by
- 455
- References
- 2
- FWCI
- 17.15
- Type
- journal article
- Language
- en
- Open access
- closed
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
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
