Why “Training Volume Is the Biggest Predictor of Success” — and Why That’s Only Half True
We read it again and again in studies, articles, and coaching posts: “Training volume is the best predictor of performance.” It’s one of the most consistent findings in exercise science, appearing across endurance sports for decades, and in national training systems. But the statement is often repeated without understanding what it really means, or more importantly what it doesn’t. One reason this line gets repeated so often is that “train more” is an easy message...



