53. Is Zone 2 Training Overhyped?
About this episode
Dr. Darian Parker explores the science behind Zone 2 training and its implications for fitness and health.
Everyone’s talking about Zone 2 training, but is it really worth the hype? In this episode, Dr. Darian Parker breaks down the science behind Zone 2 and explains: What Zone 2 actually is How Zone 2 compares with HIIT for VO₂ max and longevity Why strength training doesn’t quite hit Zone 2 Why Zone 2 isn’t consistently defined in research and what that means for your workouts Whether you’re a serious athlete, fitness professional, or just training smarter, this episode gives you evidence-based insights you can actually use. Research & References Mentioned in This Episode Meixner, C. R., et al. (2025). Inter‑individual variability in physiological markers used to define training zones. Journal of Applied Physiology. PMID: 40225831 San Millán, I., & Brooks, G. A. (2018). Revisiting lactate shuttle theory: Consistent exercise‑induced fuel utilization. Cell Metabolism, 28 (4), 824–829. Achten, J., & Jeukendrup, A. E. (2003). Maximal fat oxidation during exercise in trained men. International Journal of Sports Medicine, 24 (8), 603–608. Wilson, J. M., et al. (2012). Concurrent training: A meta‑analysis examining interference of aerobic and resistance exercise. Journal of…
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