Phil Batterson, Ph.D. | Endurance Optimization Coach on Instagram: "Comment your biggest training questions below! When is the best time to do a VO₂max test? 👉 Early in the season. The start of your training year is when you should be building your physiology — not racing fitness... yet. That’s the ideal window to test, identify weaknesses, and set accurate training zones. Here is a simple framework: • Test after 2–3 weeks of base training • Address your biggest physiological limiter with 1 qua