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If you are fit enough to finish the race, but not durable enough to keep training, eventually the cycle catches up with you.
You build fitness, make progress, start to believe things are working — and then something breaks down. Injury, inconsistency, burnout, lost motivation, or another restart from square one.
In this episode, we break down the difference between fitness and durability, why chasing performance too aggressively can keep athletes stuck, and what it actually takes to build a foundation that supports repeatable progress.
What You’ll Learn:
Why fitness and durability are not the same thing
How the “rebuild cycle” keeps endurance athletes from long-term progress
Why more intensity is often the wrong solution
How strength, frequency, recovery, and patience create sustainable performance
Timestamps:
00:00 — Introduction to fitness vs durability
01:29 — Why run frequency sparked this conversation
04:39 — The limits of three-day-a-week training
08:43 — Why early performance gains do not last forever
16:03 — Fitness for completion vs durability for performance
21:00 — The rebuild cycle and why athletes get stuck
27:51 — Why cookie-cutter plans do not work for everyone
33:16 — Fitness is capacity; durability is replicability
43:28 — How to start building durability
52:30 — Adding frequency without overloading the body
1:04:54 — The danger of validating every workout
1:12:47 — Playing the long game in endurance training
If this episode helped you understand why your training keeps breaking down, share it with another runner, triathlete, or endurance athlete who may need to hear it.
You can also join The Endurance Athlete Journey Podcast Group on Facebook to continue the conversation and connect with other endurance athletes working through the same challenges.
If you are tired of guessing your way through training, Coach Justin and Coach Katie are both active coaches accepting athletes.
For coaching inquiries:
Coach Katie → https://fuel2run.com
Coach Justin → https://tabularasaracing.com
Podcast Email →
[email protected]