What are the key physiological adaptations that occur as a result of Zone 2 training that directly translate to improved performance in mountain bike races, and how do these adaptations differ from those achieved through higher-intensity interval training.
In other words, is the primary benefit of Zone 2 training the improvement in lactate threshold, or are there other factors at play, such as increased mitochondrial density or enhanced fat metabolism, that contribute to the performance gains seen in mountain biking.
Additionally, how do the unique demands of mountain biking, such as repeated accelerations and decelerations, technical sections, and varied terrain, influence the optimal balance between Zone 2 training and higher-intensity training.
Do coaches and experienced riders find that Zone 2 training needs to be periodized in a specific way to maximize its benefits in mountain bike racing, and are there any specific metrics or biomarkers that can be used to monitor progress and adjust training accordingly.
Finally, are there any scenarios in which Zone 2 training may not be the most effective approach for improving performance in mountain bike racing, and what alternative training strategies might be employed in these cases.