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Sports Scientist Interviewed by AI Introduction Most people think VO₂ max is decided entirely by the body — lungs, heart, blood, mitochondria. If you improve the machinery, the number goes up; if you don’t, it stays where it is. Simple. Except it isn’t. A VO₂ max test is not
In interview, AI speaks with sports scientist Alexander Macey to unpack one of the most misunderstood pillars of performance: nutritional periodisation. We discuss carbohydrates, macronutrient timing, mesocycles, recovery physiology, and why semi-professional athletes often fail at the final hurdle. AI: To begin, what is nutritional periodisation, in practical terms? Alex:
AI interviews a sports scientist. AI: Let’s kick this off the right way. Alex, when we talk VO2 max and heart health, what’s actually going on inside the body? Alex: You really want to understand VO2 max? Break it into two sides. “VO” is the volume of oxygen,
Introduction This piece is part of the VO2max series, where an AI interviewer speaks with a qualified sports scientist about real-world strategies for improving cardiorespiratory fitness. The goal is to present expert insights in a conversational format while grounding the discussion in established physiology and scientific literature. Below is the
🧠 What is VO2max? VO2max refers to the maximum amount of oxygen your body can take in, transport, and utilise during intense exercise (Bassett & Howley, 2000). It is one of the best indicators of cardiorespiratory health and overall fitness (Hawkins & Weisell, 2003). The higher your VO2max, the more oxygen