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What Causes Elevated Blood Sugar Levels After Morning Exercise?

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Posted on Fri, 24 Oct 2014
Question: why would blood sugar levels be slightly elevated after morning exercise?
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Answered by Dr. Indu Kumar (1 hour later)
Brief Answer:
It is not universal.

Detailed Answer:
Hello XXXXXXX

Generally,low intensity exercise causes decrease in blood sugar level.
whereas high intensity exercise (which sometimes can even be walking for some individuals who are not accustomed) can have a tendency to increase blood sugar.

It can also be explained by"the XXXXXXX effect". This is a normal physiological state caused by the release of stress hormones early in the morning.

It also depend upon whether person has taken meal or not before exercise.
If person has not eaten any food,lactose(sugar) is secreted by the muscle to give energy to the muscles. If this sugar is not used up during exercise then sugar is still in the blood and will test higher for an hour or so before being used up by other bodily activities.
If person has taken food before exercise then sugar from the food intake will take care of the needs of the muscles and get used up before the muscle needs to secrete lactose so the blood sugar in the blood will test slightly lower values.

Hope I have answered your question.
Further queries are most welcome.

Take Care
Dr.Indu XXXXXXX
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
Dr.
Dr. Indu Kumar

Radiologist

Practicing since :2004

Answered : 6728 Questions

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What Causes Elevated Blood Sugar Levels After Morning Exercise?

Brief Answer: It is not universal. Detailed Answer: Hello XXXXXXX Generally,low intensity exercise causes decrease in blood sugar level. whereas high intensity exercise (which sometimes can even be walking for some individuals who are not accustomed) can have a tendency to increase blood sugar. It can also be explained by"the XXXXXXX effect". This is a normal physiological state caused by the release of stress hormones early in the morning. It also depend upon whether person has taken meal or not before exercise. If person has not eaten any food,lactose(sugar) is secreted by the muscle to give energy to the muscles. If this sugar is not used up during exercise then sugar is still in the blood and will test higher for an hour or so before being used up by other bodily activities. If person has taken food before exercise then sugar from the food intake will take care of the needs of the muscles and get used up before the muscle needs to secrete lactose so the blood sugar in the blood will test slightly lower values. Hope I have answered your question. Further queries are most welcome. Take Care Dr.Indu XXXXXXX