← Aellic Evidenz
Nocturnal Heart Rate Variability in Women Discordant for Hormonal Contraceptive Use
Ahokas, Hanstock, Löfberg, Nyman, Wenning, Kyröläinen, Laaksonen, Ihalainen · 2023 · Medicine & Science in Sports & Exercise 55(7):1342–1349
What this work gives Aellic
Users of combined oral contraceptives are NOT signal-free: nocturnal HRV follows a real rhythm driven by the pill pack (higher during the pill-free interval). Aellic's strata sit at estimated ovulation, not at the pack boundary — so part of this is captured, but not all of it. A genuine pill-pack mode would be a development stage of its own; until then the position is: partially correct, never wrong, and documented.
Where this sits in the engine
1 declared site: constants and thresholds in the code that point at this entry.
- Cycle Phases and cycle-aware baselines 1 site
Also in Cycle
- 2026 The diagnostic accuracy of wearable digital technology in detecting fertility window and menstrual cycles: a systematic review and Bayesian network meta-analysis
- 2020 The Effects of Menstrual Cycle Phase on Exercise Performance in Eumenorrheic Women: A Systematic Review and Meta-Analysis
- 2019 A Systematic Review and Meta-Analysis of Within-Person Changes in Cardiac Vagal Activity across the Menstrual Cycle: Implications for Female Health and Future Studies