The Tempo Trap Most training programs for endurance athletes include a fair number of ‘tempo’ workouts (80-90% of FTP; ‘medium-hard’). This is great for building muscular endurance, aerobic capacity, and cardiovascular efficiency. However, it’s common for athletes to spend too much time in this zone. It's understandable why: extended riding at tempo creates lingering fatigue. Motivated endurance athletes use this as a sign of effective training. What's really happening, t