VELOARCHITECT

Circadian Window is the system-computed signal that joins morning Whoop recovery to the Athlete’s longitudinal execution record. The system reads every completed ride against the time-of-day it was executed, then surfaces the window during which the Athlete’s Mechanical Efficiency and Execution Precision are highest. A 09:00–11:00 Circadian Window on a Tuesday does not mean the Athlete “prefers” morning riding. It means the Athlete’s own physiology and execution data jointly produce the best adaptive response in that window. The Adaptive Workout scheduler reads the window before allocating supra-threshold work.

Protocols: Protocol 10 — Adaptive Workout; Protocol 3 — Threshold Sustain

The metric traverses the closed loop: Intent is the .zwo prescription the system computed against the Athlete’s True Normal. Telemetry is the .fit recording of the executed session. Adaptation is the longitudinal movement of the metric itself, logged against the True Normal and feeding back into the next day’s prescription via Protocol 10 (Adaptive Workout).