Is Specificity Limiting Your Potential? Why Range Builds Faster, Stronger, More Durable Athletes

From research to real-world results: why modern endurance athletes thrive on strength, cross-training, movement variety, and skill development — not just miles.

In the world of endurance sport, the principle of specificity has become almost sacred.

“Train like you race,” they say.

“If you want to be a better runner — run more.”

There’s a lot of truth in that. …