Heart Rate Variability Measurements Across the Menstrual Cycle and Oral Contraceptive Phases in Two Olympian Female Swimmers: A Case Report.

Marine Dupuit, Kilian Barlier, Benjamin Tranchard, Jean-François Toussaint, Juliana Antero, Robin Pla

Abstract readCase Reports

In one paragraph

Article in Sports (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

Smart Ring in Clinical Medicine: A Systematic Review.Biomimetics (Basel, Switzerland) · 2025
Review

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Marine DupuitUMR 7329-IRMES, INSEP, Institut de Recherche Médicale et d'Épidémiologie du Sport, Université Paris Cité, F-75012 Paris, France.ORCID 0000-0003-3662-4168

Kilian BarlierUMR 7329-IRMES, INSEP, Institut de Recherche Médicale et d'Épidémiologie du Sport, Université Paris Cité, F-75012 Paris, France.

Benjamin TranchardFédération Française de Natation, 92110 Clichy, France.

Jean-François ToussaintUMR 7329-IRMES, INSEP, Institut de Recherche Médicale et d'Épidémiologie du Sport, Université Paris Cité, F-75012 Paris, France.

Juliana AnteroUMR 7329-IRMES, INSEP, Institut de Recherche Médicale et d'Épidémiologie du Sport, Université Paris Cité, F-75012 Paris, France.

Robin PlaUMR 7329-IRMES, INSEP, Institut de Recherche Médicale et d'Épidémiologie du Sport, Université Paris Cité, F-75012 Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The heart rate variability (HRV), influenced by female sex hormone fluctuations, is an indicator of athletes' adaptation. This case study explores HRV responses over 18 months across a natural menstrual cycle (MC) and during oral contraceptive (OC) use in two Olympic female swimmers. HRV measurements-including mean heart rate (HR); root mean square of successive differences (RMSSD); and frequency-domain indices-were collected at rest in supine (SU) and standing (ST) positions across two competitive seasons. Nocturnal HR and RMSSD were assessed using the Ōura

Indexed as

elite female athleteheart rate variabilitymenstrual cycleoral contraceptionswimming

Identifiers

PMID40559697

DOI10.3390/sports13060185

PMCPMC12197002

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.