Hello, and welcome to The Progress Theory, where we discuss scientific principles for optimising human performance. In this episode, we are joined by a physiologist from Newcastle University, Dr. Callum Brownstein. Now managing and recovering from fatigue is so important for the success of a training programme and sporting performance. So if it's that important, we really should understand the mechanisms behind fatigue. And on top of that, we need to understand how different sports, different training modalities, different training intensities, and different training volumes all influence the type of mechanisms behind fatigue.

In this episode, we discuss:

0:53 - Introduction
8:34 - The difference between central and peripheral fatigue
12:15 - Determining the type of fatigue
16:42 - Fatigue differences between running and cycling
21:29 - Recoverability from different fatigue
23:42 - Training session order based on fatigue
26:13 - Intensity and volume on fatigue
30:47 - Practical recommendations for training
33:41 - Organising a training week
35:32 - Pre-fatigue training

Takeaways

Understanding Fatigue: Central vs. Peripheral – Dr. Brownstein explains the vital differences between central fatigue (nervous system-related) and peripheral fatigue (muscle-related) and how these mechanisms influence exercise performance.
Exercise Modality Matters: Discover how cycling and running affect fatigue differently. While both sports show similar levels of muscle fatigue, cycling often results in more peripheral fatigue, whereas running tends to cause more central fatigue.
Training Intensity: Keep Easy Days Easy – Emphasising the importance of staying disciplined with your exercise intensity, Dr. Brownstein highlights that crossing certain intensity thresholds can significantly compound fatigue, urging the importance of proper recovery.

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