DiscoverThe Glucose Never Lies® Podcast18 — Physical Activity vs Exercise: the Before–During–After Playbook with Prof. Othmar Moser
18 — Physical Activity vs Exercise: the Before–During–After Playbook with Prof. Othmar Moser

18 — Physical Activity vs Exercise: the Before–During–After Playbook with Prof. Othmar Moser

Update: 2025-09-24
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What’s the difference between physical activity and exercise when you live with type 1 diabetes? And why does it matter? 

Full show notes & transcript: Episode 18 page 

In this episode, I’m joined by Prof. Othmar Moser, exercise physiologist, guideline author, and fellow person with type 1, to break down: 

  • Why 10 minutes of activity after meals is the easiest, most powerful place to start.
  • The 20/20 and 40/40 rules — how 20 minutes of light movement can drop glucose by 20–40 mg/dL (1–2 mmol/L).
  • How CGM feedback makes activity tangible and motivating.
  • The Before–During–After playbook for structured exercise:
    • Before: meal timing, prandial reductions, AID temp targets, basal adjustments.
    • During: safe glucose range, 3–20 g carb top-ups, when to fingerstick.
    • After: the first hour of hypo risk, late-night dips, protein strategy, and therapy-specific caveats (AID vs Pump vs MDI).


Full show notes & transcript: Episode 10 page

Explore the FAQ resource with all the key questions and diagrams: FAQ — T1D Exercise & Activity

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About The Glucose Never Lies® Podcast
This podcast translates the latest diabetes science into practical, real-world steps. Honest conversations with the world’s leading researchers, mixed with the lived experience of people with type 1 diabetes.

Disclaimer:
This podcast is for informational purposes only and does not replace medical advice. Always consult your healthcare professional before changing therapy.

© The Glucose Never Lies® Ltd
 

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Disclaimer
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18 — Physical Activity vs Exercise: the Before–During–After Playbook with Prof. Othmar Moser

18 — Physical Activity vs Exercise: the Before–During–After Playbook with Prof. Othmar Moser

John Pemberton