A 10-s Sprint Performed After Moderate-Intensity Exercise Neither Increases nor Decreases the Glucose Requirement to Prevent Late-Onset Hypoglycemia in Individuals With Type 1 Diabetes
- Raymond J. Davey, PHD1,2⇑,
- Vanessa A. Bussau, BSC (HONS)2,
- Nirubasini Paramalingam, BSC (HONS)1,3,
- Luis D. Ferreira, PHD1,2,
- Ee Mun Lim, PHD4,5,
- Elizabeth A. Davis, MD1,3,6,
- Timothy W. Jones, MD1,3,6 and
- Paul A. Fournier, PHD2
- 1Telethon Institute for Child Health Research, Centre for Child Health Research, The University of Western Australia, Perth, Western Australia, Australia
- 2School of Sport Science, Exercise and Health, The University of Western Australia, Perth, Western Australia, Australia
- 3Department of Endocrinology and Diabetes, Princess Margaret Hospital, Perth, Western Australia, Australia
- 4PathWest Laboratory Medicine, Queen Elizabeth II, Perth, Western Australia, Australia
- 5Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
- 6School of Paediatrics and Child Health, The University of Western Australia, Perth, Western Australia, Australia
- Corresponding author: Raymond J. Davey, .
OBJECTIVE To determine whether performing a 10-s sprint after moderate-intensity exercise increases the amount of carbohydrate required to maintain euglycemia and prevent late-onset postexercise hypoglycemia relative to moderate-intensity exercise alone.
RESEARCH DESIGN AND METHODS Seven individuals with type 1 diabetes underwent a hyperinsulinemic-euglycemic clamp and performed 30 min of moderate-intensity exercise on two separate occasions followed by either a 10-s maximal sprint effort or no sprint. During the following 8 h, glucose infusion rate to maintain euglycemia and rates of glucose appearance and disappearance were measured continuously.
RESULTS In response to exercise and throughout the 8-h recovery period, there were no differences in glucose infusion rate, blood glucose levels, plasma insulin concentrations, and rates of glucose appearance and disappearance between the two experimental conditions (P > 0.05).
CONCLUSIONS A 10-s sprint performed after 30-min of moderate-intensity exercise does not affect the amount of carbohydrate required to maintain euglycemia postexercise in individuals with type 1 diabetes.
- Received October 26, 2012.
- Accepted July 8, 2013.
- © 2013 by the American Diabetes Association.
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