Cited by 109Reproductive Health and TechnologiesReproductive Health and ContraceptionMobile Health and mHealth Applications

The DOI matches its Crossref record; 70 of the 71 references it cites were found in a registry or an index.

Modern fertility awareness methods: wrist wearables capture the changes in temperature associated with the menstrual cycle

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Shilaih, Mohaned, Goodale, Brianna M., Falco, Lisa, Kübler, Florian, De Clerck, Valerie, Leeners, Brigitte·2018·Bioscience Reports

Abstract

Core and peripheral body temperatures are affected by changes in reproductive hormones during the menstrual cycle. Women worldwide use the basal body temperature (BBT) method to aid and prevent conception. However, prior research suggests that taking one’s daily temperature can prove inconvenient and subject to environmental factors. We investigate whether a more automatic, non-invasive temperature measurement system can detect changes in temperature across the menstrual cycle. We examined how wrist skin temperature (WST), measured with wearable sensors, correlates with urinary tests of ovulation and may serve as a new method of fertility tracking. One hundred and thirty-six eumenorrheic, non-pregnant women participated in an observational study. Participants wore WST biosensors during sleep and reported their daily activities. An at-home luteinizing hormone (LH) test was used to confirm ovulation. WST was recorded across 437 cycles (mean cycles/participant = 3.21, S.D. = 2.25). We tested the relationship between the fertile window and WST temperature shifts, using the BBT three-over-six rule. A sustained 3-day temperature shift was observed in 357/437 cycles (82%), with the lowest cycle temperature occurring in the fertile window 41% of the time. Most temporal shifts (307/357, 86%) occurred on ovulation day (OV) or later. The average early-luteal phase temperature was 0.33°C higher than in the fertile window. Menstrual cycle changes in WST were impervious to lifestyle factors, like having sex, alcohol, or eating prior to bed, that, in prior work, have been shown to obfuscate BBT readings. Although currently costlier than BBT, the present study suggests that WST could be a promising, convenient parameter for future multiparameter fertility awareness methods.

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  1. Raith-Paula, 2008, Historische Entwicklung der Natürlichen Familienplanung, 9
  2. Colombo, 2017, Evaluation of fertility predictors and comparison of different rules, Genus, 54, 153
  3. Barron, 2005, Basal body temperature assessment: is it useful to couples seeking pregnancy?, MCN Am. J. Matern. Child. Nurs., 30, 290, 10.1097/00005721-200509000-00004 · DOI

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Metadata

Authors
Shilaih, M., Goodale, B. M., Falco, L., Kübler, F., De Clerck, V., & Leeners, B.
Affiliations
  • University Hospital Zurich (CH)
  • Ava AG, Zurich, Switzerland
Corresponding author
Leeners, Brigitte
Venue
Bioscience Reports
Published
2018-11-30
Volume
38
Issue
6
ISSN
  • 0144-8463 (ISSN-L)
  • 1573-4935
OpenAlex
W2768584306
Cited by
109
References
71
Citations by year
2026: 15 · 2025: 13 · 2024: 20 · 2023: 15 · 2022: 15 · 2021: 10 · 2020: 11 · 2019: 7 · 2018: 3
FWCI
6.67
Type
journal article
Language
en
Open access
Locations
  • Bioscience Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
Kommission für Technologie und Innovation
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Reproductive Health and Technologies
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Health and Contraception
  • Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
Keywords
fertility awareness, basal body temperature, menstrual cycle, ovulation detection, fertile window, wearable sensors, fertility monitoring, luteal phase, non-invasive temperature measurement
MeSH terms
Wearable Electronic Devices, Adult, Body Temperature, Female, Fertility, Humans, Luteinizing Hormone, Menstrual Cycle, Ovulation, Wrist, Young Adult

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