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Blood sugar can rise after HIIT, experts tell patients
The Indian Express··5 Sept
Dietitian Archana Batra says stress hormones released in hard workouts can push the liver to release stored glucose. If that output outpaces muscle use, blood sugar can rise during or just after exercise. Dr Rajiv Kovil links the pattern to HIIT, sprinting and heavy resistance training. Moderate walking, cycling or swimming more often lowers circulating glucose.
Prism
What It Means For You
- A short post-workout glucose rise can be a normal response to vigorous exercise.
- People with type 1 diabetes are advised to check ketones when blood sugar is above 250 mg/dL.
- Tracking readings before, right after, and one to two hours later can show a pattern.
What's Happening
- Batra says adrenaline, noradrenaline and cortisol can signal the liver to release glucose.
- Kovil says hepatic output can temporarily exceed what exercising muscles consume.
- Experts say the effect is more common with HIIT and heavy strength sessions than with brisk walking.
Why Intensity Matters
- Working muscles normally take up glucose and can become more insulin-sensitive.
- Strenuous exercise can register as physiological stress and raise counter-regulatory hormones.
- Carbohydrates eaten before exercise, starting glucose, dehydration and stress can also change the reading.
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