Biomechanology of Type 1 Diabetes

Post-exercise Hypoglycemia and Post-exercise Hyperglycaemia

First published in 2008 - Last edited in May 2022 by Luka Tunjic. © All rights reserved.

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In people with Type 1 diabetes, exercises sometimes lower blood sugar to the extent beneficial for the overall treatment of type 1 diabetes. Sometimes, exercise increases blood sugar levels; it can even rise to the point of hyperglycemia.

Among non-diabetic people, exercise lowers blood glucose. Still, in most cases, it will not cause abnormally low blood sugar levels (Hypoglycaemia), but in rare instances, exercises can cause hypoglycaemia among relatively healthy people.

In non-diabetic people, low blood sugar induced by exercise is relatively easy to manage, but it is far more challenging in people with Type 1 diabetes.

However, low blood sugar (hypoglycaemia) during exercise in people with Type 1 diabetes is a relatively mild problem compared with post-exercise hypoglycaemia, which may happen from 3 to 12 hours after exercising.

The most dangerous post-exercise hypoglycaemia happens during night sleep (night-time hypoglycaemia or nocturnal hypoglycaemia). Night-time hypoglycaemia (or nocturnal hypoglycaemia) can be fatal. Actually, night-time hypoglycaemia has been considered to be responsible for a large proportion of sudden deaths in young T1DM patients.

In order to understand why exercises cause low blood sugar (hypoglycaemia) in some people with diabetes and in some people without diabetes, it is essential to understand why exercises induce weight loss in some people; in some people, it doesn't have any effect on weight loss, and in some people, it even causes further weight gain. Understanding post-exercise weight loss is essential to understanding and preventing post-exercise hypoglycaemia, including night-time hypoglycaemia.

The problem is that post-exercise weight loss is attributed to an elevated breathing rate for some time after exercising (post-exercise oxygen consumption), which is wrong. Plenty of factors prove that post-exercise weight loss cannot be due to an elevated breathing rate for some time after exercising.

Before any discussion about the cause of post-exercise hypoglycaemia and post-exercise hyperglycaemia, it is essential to understand what really causes post-exercise weight loss.

I have explained the underlying mechanism of post-exercise weight loss in my book "Mechanical Stimulation Low-Grade Inflammation Weight Gain: Muscles Upward Lifting Activity Weight Loss".

Please note! Any possible attempt to induce musculoskeletal changes in order to treat and cure Type 1 diabetes without medical supervision may induce serious or fatal consequences. Here are just a few reasons for this;

1. Adverse musculoskeletal changes are one factor of Type 1 diabetes but it is not the direct cause of type 1 diabetes.

2. Faulty biomechanics is another factor of Type 1 diabetes.

3. Reduced size of the pancreas in T1DM – What causes shrinkage of the pancreas needs to be understood before any attempt to treat or cure Type 1 diabetes.

4. Low bone mineral density in T1DM – The reason for lower MBD in Type 1 diabetes needs to be understood before any attempt to treat or cure T1DM.

5. Exercises in some cases induce hyperglycaemia - high blood sugar and in some cases induce hypoglycaemia - abnormally low level of sugar (glucose) in the blood.

6 – The real danger of death while sleeping. “One in 20 type 1 diabetics die in their sleep due to a sudden drop in their blood sugar.”

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