Ep. 7 - Physiology Unlocked: Measuring the Human Body with Tristan Starling-Smith

Episode 7 may be our best conversation to date. We welcome our first-ever guest to Vitality Vision by Volo — Our exercise physiologist Tristan Starling-Smith, who brings a wealth of knowledge, clarity, and passion to the discussion.

In this episode, we dive into what physiology really is and why it matters not only for elite athletes but for anyone who wants to live with more energy and health. Tristan walks us through the VoloClub Performance Lab and explains the tools of his trade — VO2 max, lactate testing, resting metabolic rate, body composition, and DARI motion capture — unpacking what each test measures, what insights they provide, and how actionable they are in practice.

We explore how these protocols, once reserved for Olympians and professionals, are now being brought to the other 99% of people through the VoloClub. Tristan shares how everyday individuals — including those struggling with body fat, metabolic health, or simply wanting to feel better — can benefit from the same science that has guided champions.

The conversation also connects physiology with data science and predictive health: how these measures feed into the development of the future Volo Scores, why waist circumference is more powerful than BMI, and how improving metrics like metabolic health isn’t just about disease avoidance but about feeling great, moving well, and improving quality of life.

Along the way, David and Barry share their perspectives and experiences in the lab, including the role of biomarkers and how data-driven insights combine with hands-on testing to create a fuller picture of health.

We finish with a lively round of overrated/underrated, where Tristan weighs in on cold plunges, saunas, Zone 2 training, VO2 max, lactate testing, and more.

This episode captures the perfect blend of science, practicality, and fun — a conversation that sets the standard for everything we hope this podcast can be.