Fast Talk 330: How Much Interval Training Do We Really Need? With Dr. Stephen Seiler
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Aug 1, 2024 
Dr. Stephen Seiler, a leading expert on high-intensity interval training, dives into the science behind effective training strategies. He discusses the balance of intensity and recovery, emphasizing personalized training plans over traditional metrics. Insights into breathing metrics as performance indicators and the evolution of fitness tracking technology are explored. Seiler also shares fascinating revelations from Kenyan runners on minimalist training practices, highlighting the importance of consistency for athletic success.
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Defining High-Intensity Intervals
- High-intensity intervals mean work above the second lactate turn point (LT2).
- These efforts typically last minutes and require broken-up intervals to accumulate sufficient stimulus.
Think Long Game, Not Single-Session Max
- Focus on sustainability and long-term optimization, not maximizing single-session metrics.
- Coaches and elite athletes prioritize cumulative management of stress and signal across many sessions.
Use Mechanical Breath Rate Tracking
- Measure breathing frequency mechanically to track session mobilization and fatigue.
- Do not rely on wrist-worn HRV-derived breathing estimates for high-intensity accuracy.