Barbell Shrugged Four Levers of Physiological Flexibility w/ Dr. Michael T. Nelson, Anders Varner, Doug Larson, and Travis Mash #816
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Sep 24, 2025 In this engaging discussion, Dr. Michael T. Nelson, an esteemed exercise physiologist, delves into the fascinating world of physiological flexibility. He breaks down its four pillars: temperature, pH, fuel sources, and breathing. Listeners learn about heat acclimation and cold exposure protocols that enhance resilience, as well as the importance of managing pH levels for peak performance. Dr. Nelson also shares insights on using lactate and ketones as energy sources and the benefits of breathwork techniques. A wealth of knowledge for athletes looking to optimize their conditioning!
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Four Pillars Expand Your Dynamic Range
- Physiological flexibility expands your body's dynamic range across temperature, pH, fuels, and breathing.
- Expanding those ranges reduces stress responses and improves recovery and resilience.
Getting Toasted In Costa Rica
- Dr. Nelson described visiting Costa Rica unacclimated and struggling for almost a week in the heat.
- He used that experience to illustrate how heat adaptation improves performance over days to weeks.
Progress Heat And Cold Separately
- Start heat or cold adaptation separately and progress duration and intensity slowly while tracking recovery markers like HRV.
- Once adapted on each end, consider contrast therapy only if both extremes are tolerated well.