The Algorithm
How recovery
is calculated.
Heart Rate Variability (HRV)
The most powerful predictor of readiness. i bio measures HRV while you sleep for accuracy, not during activity when HRV is suppressed.
Resting Heart Rate
An elevated resting HR is often the first sign of incomplete recovery, illness, or accumulated stress. Tracked every night.
Respiratory Rate
Breathing rate during sleep changes before you feel sick. An early warning system built into every night's data.
Sleep Performance
The duration, quality, and efficiency of your sleep directly feeds into your recovery score each morning.
Weekly Recovery History
HRV Trend
Green — Go
Your body is primed. Push hard today. This is your window for high-intensity training, PRs, and competition.
Yellow — Moderate
Moderate effort only. Your body is recovering. Training at high intensity today may impede tomorrow's readiness.
Red — Rest
Your body is telling you something. Prioritize rest, light movement, nutrition, and stress management today.