In this episode of the Critical Oxygen podcast, Coach Aaron Geiser and I answer questions about strength training for endurance athletes, adjusting training zones for different sports, choosing a reputable laboratory for physiological testing, developing FTP with limited training time, and the differences between zone two training and double threshold days. We discuss the importance of individualizing strength training based on an athlete's goals, limitations, and weaknesses. We also explore the differences in training zones and thresholds between running and cycling, highlighting the impact of gravity and body weight on the stress and exertion of each activity. In this conversation, we cover adjusting heart rate zones for different activities, the importance of training at the right intensity, the benefits of physiological testing, and how to improve FTP with limited training time. Overall, we emphasize the importance of individualization and understanding one's goals and context when designing a training plan.