In this engaging discussion, Dr. James Morton, an expert in exercise metabolism and nutrition, shares insights from his work with elite athletes. He emphasizes carbohydrate periodization and its impact on performance, highlighting the principle of fueling for the work required. Key topics include training with low glycogen levels, the critical role of nutrition in recovery, and how age and sex affect dietary needs for athletes. The conversation is a treasure trove of strategies for optimizing endurance, particularly for ultra marathon runners.
Carbohydrate periodization can optimize athletic performance by adjusting intake based on training demands and individual needs.
Training with low glycogen levels enhances metabolic adaptations, allowing endurance athletes to better utilize fat as fuel during workouts.
Deep dives
The Role of Nutrition in Athletic Performance
Nutrition significantly influences athletic performance, with a focus on optimizing dietary strategies to enhance recovery and improve outcomes. Specifically, sleep and nutrition are crucial elements that athletes often overlook when considering their training regimens. The discussion highlights how proper nutrition not only aids recovery but also affects training adaptations and overall performance levels. By prioritizing nutrition and recovery—especially by considering factors like timing and macronutrient composition—athletes can create a more effective performance strategy.
Training Low: Glycogen Depletion Strategies
Training with low glycogen levels, often referred to as 'training low,' can enhance metabolic adaptations beneficial for endurance athletes. This strategy might involve methods like fasted training or deliberately depleting glycogen through specific workout patterns. Evidence suggests that athletes can still perform at moderate intensities while maintaining lower glycogen levels, evolving their bodies to efficiently utilize fat for fuel. However, the effectiveness of this approach can vary considerably among individuals based on their fitness levels and training history.
The Importance of Periodization in Carbohydrate Intake
Carbohydrate periodization involves adjusting carbohydrate intake based on training demands to optimize performance outcomes. This technique allows athletes to fuel high-intensity sessions appropriately while intentionally restricting carbohydrates during less demanding workouts. Research indicates that this strategy can lead to improved endurance and better adaptation to training. Properly applying periodization means understanding individual needs and recognizing how to balance fueling without compromising overall performance during critical training phases.
The Individual Approach: Gender and Aging Considerations
Understanding how an athlete's gender and age impact carbohydrate utilization is crucial for optimizing performance. Current research gaps exist regarding the differences between male and female athletes, as well as the effects of aging on metabolic responses and glycogen use. Insights gathered suggest that older athletes may have different glycogen needs and utilization patterns compared to their younger counterparts. As research advances, there will be a greater need to tailor nutritional recommendations to account for these dynamic factors, ensuring that athletes of all demographics can effectively enhance their performance.
This is a deep dive into carbohydrate periodization with Drs. James Morton and Julien Louis where we explain the science behind our recommendation of FUEL FOR THE WORK REQUIRED (e.g., enough but not much more) and GLYCOGEN THRESHOLD (i.e., train to low levels). We also explore issues of sex and age, how bone health may be critically dependent on carbohydrate availability (not just total calories), and several other important topics.
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