#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

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Olav Aleksander Bu is an internationally renowned sports scientist acclaimed for his coaching prowess with elite athletes spanning a diverse range of sports disciplines. In this episode, Olav returns to dive deeper into his groundbreaking work as an endurance coach, exercise scientist, engineer, and physiologist. The discussion explores his data-driven approach to coaching, unpacking key performance metrics like functional threshold power, VO2 max, and lactate threshold, while emphasizing the importance of consistent testing protocols. Olav shares insights on how training methodologies differ across sports, the impact of nutrition on endurance performance, and the evolving strategies for carbohydrate metabolism in fueling athletes for races. Olav concludes with a discussion on the use of artificial intelligence for optimizing training insights and performance.

We discuss:

• Olav’s unique, engineering-driven approach to endurance coaching [2:45];
• Definitions and applications of key performance metrics: FTP, power, anaerobic threshold, and lactate threshold [4:45];
• Lactate threshold: factors affecting lactate threshold, testing protocols, and how elite athletes' efficiency affects their performance and lactate profiles [14:15]
• VO2 max: definition, testing, factors affecting its accuracy, and methods for optimizing oxygen utilization in elite athletes [22:15];
• Testing VO2 max: common mistakes and key factors to consider—preparation, warm-up, timing, and more [34:00];
• VO2 max testing continued: measuring instruments, testing protocols, and advanced insights gained from elite athletes [41:45];
• The influence of supplements like beetroot concentrate and adaptogens on VO2 max and performance [49:45];
• How respiratory quotient (RQ) reflects metabolic shifts during exercise, the challenges in measuring and interpreting RQ in elite athletes, and the physiological adaptations needed for prolonged endurance events [53:30];
• Triathlon training: the challenge of maintaining elite performance across triathlon distances, metabolic efficiency, and swimming challenges [1:03:15];
• How reducing drag in swimming could revolutionize performance and the role of biofeedback tools in optimizing efficiency across various endurance sports [1:07:00];
• How endurance athletes prioritize effort regulation using RPE, heart rate, and power output, and the role of lactate in cardiac and athletic efficiency [1:20:00];
• Lactate’s role as a fuel, buffering methods to combat lactic acidosis, and the variability in athlete response to bicarbonate supplementation [1:25:45];
• The physiological mechanisms behind differences in performance between two elite athletes: lactate transport, cardiovascular efficiency, and compensatory systems [1:33:00];
• Comparing interventions like acetaminophen to enhance performance in high-heat conditions versus natural adaptations to heat [1:37:15];
• Advancements in nutrition science, changes in cyclist body composition, and the impact of fueling strategies on athletic performance and growth [1:39:30];
• Optimizing endurance performance with utilization of carbohydrates, and the potential role of ketones [1:48:00];
• Insights gained from elite performers in the 2020 and 2024 Olympics [1:58:30];
• The use of artificial intelligence to optimizing training insights and performance [2:06:30]; and
• More.

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