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Did my blood sugar levels increase due to exercise?
Question
I ran 3 miles last night and took my blood sugar level about 5-7 minutes after stopping. I was surprised to get a reading of 150 mg/dL. I am not diabetic but have minor signs of insulin resistance, so I do some glucose monitoring. Before the run my blood sugar was 91 mg/dL and within 45 minutes of stopping, I was down to 87 mg/dL. Is the increased blood sugar level normal for intense exercise (I run/jog several miles a week for over 1 year now)? Was the blood sugar elevation to compensate for the activity itself? When I abruptly stopped, my body took a few minutes to reach the new equilibrium.
Expert Answer
D
Prof Dinesh DhanwalApr 24, 2006
Prof of Medicine and Head of Endocrinology,
Maulana Azad Medical College,
New Delhi
Maulana Azad Medical College,
New Delhi
If someone is fasting then there is release of glucose first from liver, which can last for 6-9 hrs followed by glucose production from fat and proteins. The possible reason for your glucose increase after exercise is release of glucose from liver/fat. Other possible reason is counter regulatory hormones which increase glucose levels during exercise. As you said this is a body adaptation in response to exercise.
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