Modern fertility awareness methods: wrist wearables capture the changes in temperature associated with the menstrual cycle
Shilaih, Goodale, Falco, Kübler, De Clerck, Leeners · 2018 · Bioscience Reports 38(6):BSR20171279
Observational study · Rang 5 von 9
What this work gives Aellic
Wrist skin temperature: luteal rise +0.33 °C; a sustained 3-day shift occurs in 82 % of cycles, and 86 % of shifts begin on the day of ovulation or later. Carries three constants of the ovulation estimate at once: the 3-day rule (`TEMP_SHIFT_SUSTAIN_DAYS`), the choice of the day BEFORE the shift begins as ovulation, and the stratum boundary `> ovu_day`.
Correction of 26 July 2026
This paper was cited at four places in the cycle engine but was missing from the registry entirely — it is NOT identical with shilaih2017 (different year, different journal, different signal: temperature instead of pulse).
The entry on the register was wrong. It was not replaced but kept — with what holds instead standing next to it.
Where this sits in the engine
2 declared sites — constants and thresholds in the code that point at this entry.
- Cycle Phases and cycle-aware baselines 2 sites
Register entry shilaih2018 · Observational study