How Does WHOOP Calculate Strain?
How WHOOP turns heart rate zones and muscular load into a 0 to 21 Strain score, why the scale is logarithmic, and why your max heart rate changes the math.
Category: Wearable Metrics
Why Is My Readiness Score So Low on My Oura?
Why your Oura Readiness Score dropped, what each score range means, what ‘Pay attention’ on Recovery Index means, and simple ways to raise it again.
What Is Strain in WHOOP?
What your WHOOP Strain score means, the 0–21 zones from Light to All Out, what counts as a good score for your recovery, and how Day Strain differs.
What Is Readiness Score for Oura?
Oura Readiness Score (0 to 100) shows how prepared your body is for the day based on sleep, activity, resting heart rate, HRV, and body temperature.