Intensity Is a Tool, Not a Personality
Endurance athletes love intensity: Intervals, hill repeats, hard group rides, race-pace workouts. These workouts feel productive; they feel like progress. But here’s the question:
Are you training with intensity, or chasing it?
Intensity is a powerful training tool. Used properly, it improves speed, power, and race readiness.Used too often, it leads to fatigue, stalled progress, and injury.
The difference comes down to how it’s applied.
Not Every Session Should Be Hard
Hard sessions create adaptation, but adaptation only happens when recovery follows.
Many athletes fall into a familiar pattern:
- Hard interval session
- Hard group ride
- Hard long run
- Repeat the following week
Eventually fatigue accumulates. Workouts feel harder than they should, small aches appear, and motivation drops.
You know the feeling…The issue usually isn’t effort, it’s intensity management.
Aerobic Work Builds the Foundation
Most endurance performance is built at lower intensities.
Easy runs. Steady rides. Long aerobic sessions.
These sessions:
- Build aerobic capacity
- Improve fat metabolism
- Strengthen connective tissue
- Allow higher overall training volume
They may not feel dramatic, but they are the foundation of endurance performance. Without them, intensity has nothing to sit on.
Strategic Intensity
Hard training absolutely matters.
It develops:
- Speed
- Power
- Lactate tolerance
- Race readiness
But intensity should be used with intention.
For most athletes this means:
- 1–2 higher intensity sessions per week
- Surrounded by easier aerobic work
- Planned around recovery
When every workout becomes intense, intensity loses its effectiveness.
The Long Game
Intensity can make you feel fit quickly, but intelligent training keeps you progressing for decades. Train hard when appropriate, but build your aerobic base.
Recover intentionally.
Repeat this for years, not just one season.
This exact approach is how I’m personally continuing to perform endurance events at 50, and the plan is to still be doing them well into my 60’s and 70’s.
Because the ultimate goal isn’t one great season, it’s a lifetime of them.