High-Carbohydrate Vs. High-Fat Diets In Trained Cyclists - Brief Article - Statistical Data Included...

Even the "high fat" people ate 30-40% carbs. Number of training hours per week of only 6 hours at the low end indicates a person who isn't really much of a bike racer. Eat only 30-40% carbs on that amount of hours and it wouldn't matter much.

Measured performance by measuring VO2max. This is really poor because even with NO training VO2max does not drop very much. Measuring race performances would be much more appropriate, or at least measuring performance at a variety of intensities.