What's the most important physiological trait for endurance performance? | #7 ft. Jonah Rosner

Welcome to the Critical Oxygen Podcast! In this episode Jonah Rosner, MS, CSCS, and I talk about predictors of performance and how we use testing to determine training plans. Enjoy! Enjoying these podcasts, subscribe to get notified when new episodes are released. If you have a question or topic you want us to address, leave a comment! Follow Phil on Instagram - https://www.instagram.com/criticalo2 Follow Jonah on Instagram - https://www.instagram.com/jonah_jarperformance Interested in testing, courses, or other long form content check out the critical oxygen website - https://www.criticaloxygen.com OUTLINE: 0:00 – Introduction and Topic Overview 2:15 – Jonah's Impromptu 27-Mile Run 4:00 – Fueling Strategy and Carbohydrate Oxidation 6:24 – The Role of Nutrition in Performance 8:08 – Influence of Diet on Bone Health 9:55 – The Importance of Adequate Caloric Intake 11:37 – Motor Unit Activation and Muscle Fiber Types 13:53 – Fine-Tuning Muscle Recruitment for Efficiency 16:08 – Economy and Its Relationship to Efficiency 18:05 – Neuromuscular Components and Metabolic Efficiency 20:23 – Muscle Contraction Types and Energy Expenditure 22:03 – The Complexity of Human Physiology in Performance 23:34 - The Importance of VO2 Max in Endurance Sports 25:02 - Benefits and Challenges of High-Intensity Training 28:40 - Comparing Training Strategies and Adaptations 31:05 - Using VO2 Max to Guide Training 35:28 - VO2 Max in CrossFit 42:47 - Factors Influencing CrossFit Performance 43:24 - CrossFit Requirements 44:09 - Predictors of Performance 45:07 - CrossFit Games 5K 46:21 - Individualized Training 47:26 - Training Based on Sport Demands 48:05 - Zone 2 vs. High-Intensity Interval Training 50:05 - Thresholds Defined 57:19 - Power and Speed Adaptation 59:26 - Training with Heart Rate Zones 1:01:45 - Future Topics