Whats the scientific basis for the popular 80/20 interval training protocol thats widely recommended for improving time trial performance, and is there any evidence to suggest that a more aggressive 60/40 or 50/50 protocol could yield even better results for experienced riders who are already highly adapted to high-intensity interval training.
Is it possible that the 80/20 protocol is simply a watered-down version of more intense interval protocols that were originally developed for elite athletes, and that amateur riders who are serious about improving their time trial performance should be pushing themselves harder.
How do the different interval protocols compare in terms of their physiological effects on the body, and what are the specific adaptations that occur in response to different types and intensities of interval training.
Are there any studies that have directly compared the effects of different interval protocols on time trial performance, and if so, what were the results.
Is it possible that the optimal interval protocol for improving time trial performance varies depending on the individual riders physiology and training background, and if so, how can riders determine which protocol is best for them.
What role do factors such as training volume, periodization, and recovery play in determining the effectiveness of different interval protocols, and how can riders optimize these factors to get the most out of their interval training.