VELOARCHITECT

Systemic Degradation Threshold is the point at which the Athlete’s own True Normal stops moving up. Mechanical Efficiency stops ticking; FTP gains plateau; HRV trend flattens. The system reads the Threshold not from a single ride, but from a 4-6 week longitudinal drift in True Normal metrics. Past the Threshold, additional load produces fatigue without producing adaptation. The system intervenes with a deload block — Protocol 4 Recovery Spin or full rest — before the Athlete experiences overtraining syndrome. The Threshold is the load-bearing concept that separates training stress from training damage.

Protocols: Protocol 11 — Failure Horizon; Protocol 10 — Adaptive Workout; Protocol 1 — Zone Endurance

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).