Some Work, All Play 275. Why Higher Calorie Needs May Stack Across Training, Heart Rate v. Feel, Muscle and Liver Glycogen, Treadmill Workouts, and Pacing!
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Sep 9, 2025 This podcast dives into the surprising energy demands following ultra-marathons, revealing how recovery needs can skyrocket. It thoughtfully discusses glycogen replenishment, the ongoing debate around 'ugly shoes,' and the nuanced role of heart rate versus personal feeling in training. Alongside captivating topics like treadmill workouts and innovative shoe technologies, there's humor about the challenges of endurance training and the curious connection between probiotics and recovery. Expect laughs, insights, and even cod!
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Two-Treadmill Heart-Rate TV Session
- Megan and David enjoyed a two-treadmill side-by-side workout and used screen-mirroring to show heart rate on the TV.
- Megan nearly quit mid-workout, left briefly, then returned to finish — a reflection on years of stacking tough sessions.
Ultras Create Long Tail Energy Needs
- A 161 km mountain ultramarathon produced very large post-race energy needs that persisted for seven days.
- The racers required ~1,000–1,200 extra calories per day to correct race-induced energy deficit.
Heavy Training Also Has Metabolic 'Tails'
- Training's repeated acute stresses likely produce similar long-tail metabolic demands even if smaller than an ultra.
- Counting only base metabolic rate plus work done risks underestimating recovery feeding needs.