Episode #391: VO2 Max vs. Cardiorespiratory Fitness, GLP-1 Costs, and the 10,000-Step Myth | Direct Line March 2026 (Free)
About this episode
Drs. Feigenbaum and Baraki discuss the differences between VO2 max and cardiorespiratory fitness, the costs of GLP-1 medications, and the validity of the 10,000-step myth for cardiovascular health.
In this free preview of the March 2026 Direct Line AMA. Drs. Feigenbaum and Baraki cover: VO2 max versus cardiorespiratory fitness for longevity (are Peter Attia’s targets evidence-based? — with Goodhart’s Law and the JAMA evidence), what GLP-1 medications actually cost now via manufacturer programs ($149–449/month), and whether 7,000–10,000 daily steps actually meet the bar for cardiovascular training. Full episode for Barbell Medicine Plus subscribers at https://barbellmedicine.supercast.com/ Timestamps: 0:00 — Introduction 3:26 — VO2 Max vs. Cardiorespiratory Fitness for Longevity 14:11 — GLP-1 Costs: What you should actually be paying now 21:43 — Is Walking Enough for Cardiovascular Health? Next Steps: For evidence-based resistance training programs: barbellmedicine.com/training-programs For individualized training consultation: barbellmedicine.com/coaching Explore our full library of articles on health and performance: barbellmedicine.com/resources To consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.com Resources: JAMA Network Open — Cardiorespiratory Fitness & Long-term Mortality (Mandsager et al.) — Exercise capacity (METs) and longevity — the…
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