Hypos Decreased During Exercise When Basal is Discontinued

“Discontinuing basal insulin during exercise is an effective strategy for reducing hypoglycemia in children with type 1 diabetes,” say researchers from Tampa, Florida, “but the risk of hyperglycemia is increased.”

Forty-nine type 1 children between the ages of 8 and 17 on insulin pump therapy were studied during periods of exercise on two days. On the first day, basal insulin was stopped during exercise, and on the second day, it was continued.

“Hypoglycemia [defined as 70 mg/dl or lower] during exercise occurred less frequently when the basal insulin was discontinued than when it was continued,” write the researchers. “Hyperglycemia 45 minutes after the completion of exercise was more frequent without basal insulin.”

Diabetes Care, October, 2006

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