Does high Zone 2 volume improve threshold power, and if so, what are the optimal training protocols and durations for achieving this benefit? Specifically, how does the relationship between Zone 2 volume and threshold power change as the volume increases, and are there diminishing returns beyond a certain point?
What role do factors such as individual variability, training status, and genetics play in determining the effectiveness of high Zone 2 volume for improving threshold power? Are there specific populations, such as elite athletes or masters cyclists, for whom high Zone 2 volume may be more or less effective for improving threshold power?
How does the timing and distribution of Zone 2 training within a larger training program impact its effectiveness for improving threshold power? For example, is it more effective to perform high volumes of Zone 2 training in a single block, or to distribute it throughout the training year? Are there specific training phases, such as base or build, during which high Zone 2 volume is more or less effective for improving threshold power?
What are the key physiological adaptations that occur in response to high Zone 2 volume, and how do these adaptations contribute to improvements in threshold power? Are there specific biomarkers or performance metrics that can be used to track the effectiveness of high Zone 2 volume for improving threshold power?
Are there any potential risks or drawbacks to incorporating high volumes of Zone 2 training into a training program, and how can these risks be mitigated? For example, are there specific injury or overtraining risks associated with high Zone 2 volume, and how can these risks be managed through careful training planning and monitoring?