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 * 4:15 Andrew goes (mostly) plant-based
 * 22:15 Michael blasphemes against bike lanes
 * 32:15 Wheel stiffness inaccuracy correction
 * 35:15 Listener question about comparing HRV values across long time horizons  
 * 40:30 a digression on the individual nature of heart rate
 * 45:00 Andrew’s experience with Osymetric chaninrings  

Listen to our chat with Marco Altini of HRV4Training in episode 43. Download or stream it wherever you get your podcasts or directly here [https://x3training.com/endurance-innovation-43-heart-rate-variability-with-marco-altini/]. 

66 - Plant-Based Diets and Bike Lanes

Endurance Innovation examines the technology, science, and engineering shaping modern endurance sport. Each episode features a focused conversation with researchers, coaches, and industry practitioners working in areas such as cycling aerodynamics, triathlon equipment, performance modeling, training science, biomechanics, and data analysis.

Rather than speculation or trend-driven commentary, the show emphasizes evidence-based methods and practical applications for athletes and coaches across cycling, triathlon, and other long-course disciplines. Topics include aerodynamic testing, cooling, running and cycling performance, endurance nutrition, training strategies, and the tools that support both high-performance and age-group athletes.

New episodes are released periodically.