What is the ideal weekly structure for a 4-week Zone 2 training phase, and should it prioritize consistency and frequency over allowing for adequate recovery time and potential gains from high-intensity interval training? Some argue that a Zone 2 phase should be a straightforward, low-stress block of training, while others claim that incorporating high-intensity interval training can enhance cardiovascular benefits and boost power output.
Is a traditional, periodized approach with a steady increase in training volume and intensity still the most effective way to structure a Zone 2 phase, or can a more flexible, adaptive approach that incorporates data-driven decisions and real-time feedback lead to better results? Should training plans prioritize time in Zone 2 over other metrics, such as Training Stress Score or Chronic Training Load, or is there a more nuanced approach that balances these competing demands?
How do the principles of polarized training and the 80/20 rule influence the design of a Zone 2 phase, and what role should high-intensity interval training play in this context? Should athletes prioritize shorter, more intense workouts or longer, more leisurely rides, and how do these decisions impact the overall effectiveness of the training phase?
Can a well-designed Zone 2 phase truly be effective without any high-intensity interval training, or are there specific situations or athlete profiles where this approach is more suitable? What are the potential risks and downsides of prioritizing Zone 2 training over other intensity zones, and how can athletes mitigate these risks while still achieving their training goals?