Free cheat sheet
Endurance Terminology, on One Page
Every common way of describing exercise intensity, zone models, RPE and Borg scales, time to failure, heart-rate percentages, running paces, blood-lactate ranges and fuel use, lined up on a single chart. Save it as an A4 PDF to pin above your turbo trainer.
Values are approximate reference figures and vary significantly by individual, sport and training status. Free to share and print, no attribution required.