Diabetes and Exercise: How Exactly Muscle Movement Manages Blood Sugar

In this episode, Katy Bowman and Jeannette Loram dive into the fascinating relationship between blood sugar, diet, and movement. They unpack how the body regulates blood sugar, what happens when this process breaks down in Type I and Type II diabetes, and why different kinds of activity play such a big role in prevention and management.

Katy and Jeannette explain how contracting muscles can pull glucose directly into working cells during exercise—a powerful but site-specific effect—and how long-term training reshapes muscle to take up glucose more efficiently.

They also compare the blood sugar benefits of endurance exercise, resistance training, HIIT, stretching, and even light daily movement. Along the way, they highlight two key scenarios: insulin resistance linked to excess weight and inflammation, versus insulin resistance driven by low muscle mass in people with normal weight. For the latter, they stress why resistance training—or “big body work”—is especially essential.

Enhanced Show Notes & Full Transcript

CHAPTERS 

0:06:00 - Definitions 

0:16:00 - The Dynamic Collective 

0:17:00 - You Can’t Exercise Off Diabetes 

0:20:00 - Muscle is the Key Tissue (and the Liver)

0:36:30 - Stretching & Light Activity 

0:47:00 - Exercise Modality for Blood Sugar Regulation

0:54:25 - Listener Question on Lupus brought to you by Peluva 

1:09:09 - Blood Sugar Spikes During Exercise

BOOKS & RESEARCH PAPERS

My Perfect Movement Plan by Katy Bowman
I know I should Exercise, But... by Diana Hill & Katy Bowman
Exercise and GLUT4 by Flores-Opazo et al (2020) 

Mechanisms of endurance and resistance exercise in type 2 diabetes by Zhao et al (2025) 
Sedentary behaviour as a mediator of type 2 diabetes by Hamilton et al (2015) 

Impact of reduced sitting time or increasing sit-to-stand transitions on blood pressure and glucose regulation in Postmenopausal women by Hartman et al (2025) 

The impact of standing desks on cardiometabolic and vascular health by Bodker et al (2021)

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