Beyond Zone 2
Relying solely on Zone 2 training will lead to performance plateaus; incorporate all training zones for well-rounded fitness.
While Zone 2 is excellent for building an aerobic base, neglecting higher intensity zones (threshold, VO2 max) means you won't be prepared for race-specific demands. A balanced programme that stimulates all physiological systems is crucial for long-term improvement.
Try this:
In your next training block, ensure you have dedicated sessions targeting Zone 2 (long easy efforts), Zone 3/4 (tempo/threshold), and Zone 5 (short, high-intensity intervals).