N=1 Reports on ouraring.com

N=1 Self-Experiment Data

Claire (marathon runner)

• Protocol: Long-term Oura tracking during marathon training. Identified personal RHR threshold <40 bpm predicts amenorrhea. Eases training + improves fueling when RHR trends down
• Before: Personal baseline
• After: RHR <40 bpm correlated with missed menstrual periods
• Change: RHR threshold identified as RED-S early warning
• Duration: Multi-yr
• Device: Oura Ring

Bailey

• Protocol: Gastric bypass surgery (Jan 2022) + subsequent diet/exercise changes. Started at 407 lbs; lost 110+ lbs
• Before: RHR 85–90 bpm (pre-surgery)
• After: RHR ~54 bpm
• Change: RHR −31 to −36 bpm
• Duration: ~2 yrs
• Device: Oura Ring

Jillian

• Protocol: Stage 3c cervical cancer treatment tracked with Oura through diagnosis and recovery
• Before: HRV never above 20 ms
• After: HRV up to 60 ms
• Change: +40 ms (+200%)
• Duration: 2+ yrs
• Device: Oura Ring

Vernon

• Protocol: Pericardial effusion with cardiac tamponade detected by RHR change + shortness of breath
• Before: Established baseline
• After: RHR +20 bpm above baseline; body temp +2°F
• Change: RHR +20 bpm acute
• Duration: Acute onset
• Device: Oura Ring