In this episode of Metabolic Mastery, Dr. Marc Humbert and Dr. Cameron Garber dive deep into one of the most crucial, and misunderstood,principles in fitness: Load vs. Capacity. Discover how managing total load (training, stress, sleep, nutrition, life events) relative to your body’s capacity is the key to avoiding injury, preventing burnout, and optimizing long-term performance. Learn why VO2 max testing and heart rate zones are essential for precise training, how to balance high-intensity and low-intensity workouts (including the 80/20 rule), and how to run personal “lifestyle audits” to overcome plateaus. Whether you're a beginner, seasoned athlete, or coach, this episode offers science-backed, actionable insights to help you train smarter, stay consistent, and keep progressing for years to come.

Load, capacity, and health: https://pubmed.ncbi.nlm.nih.gov/30254049/
Optimal loading: https://pubmed.ncbi.nlm.nih.gov/25950028/
Load vs Frequency (The envelope of function): https://pubmed.ncbi.nlm.nih.gov/8998861/
​Internal & External Load: https://pubmed.ncbi.nlm.nih.gov/30614348/

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