Glycemic control during consecutive days with prolongedwalking exercise in individuals with type 1 diabetes mellitus
Journal article
van Dijk, Jan Willem, Eijsvogels, Thijs M., Nyakayiru, Jean, Schreuder, Tim H. A., Hopman, Maria T., Thijssen, Dick H. and Van Loon, Lucas. (2016). Glycemic control during consecutive days with prolongedwalking exercise in individuals with type 1 diabetes mellitus. Diabetes Research and Clinical Practice. 117, pp. 74 - 81. https://doi.org/10.1016/j.diabres.2016.04.053
Authors | van Dijk, Jan Willem, Eijsvogels, Thijs M., Nyakayiru, Jean, Schreuder, Tim H. A., Hopman, Maria T., Thijssen, Dick H. and Van Loon, Lucas |
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Abstract | Aims Despite its general benefits for health, exercise complicates the maintenance of stable blood glucose concentrations in individuals with type 1 diabetes. The aim of the current study was to examine changes in food intake, insulin administration, and 24-h glycemic control in response to consecutive days with prolonged walking exercise (∼8 h daily) in individuals with type 1 diabetes. Methods Ten individuals with type 1 diabetes participating in the worlds’ largest walking event were recruited for this observational study. Simultaneous measurements of 24-h glycemic control (continuous glucose monitoring), insulin administration and food intake were performed during a non-walking day (control) and during three subsequent days with prolonged walking exercise (daily distance 40 or 50 km). Results Despite an increase in daily energy (31 ± 18%; p < 0.01) and carbohydrate (82 ± 71 g; p < 0.01) intake during walking days, subjects lowered their insulin administration by 26 ± 16% relative to the control day (p < 0.01). Average 24-h blood glucose concentrations, the prevalence of hyperglycemia (blood glucose >10 mmol/L) and hypoglycemia (blood glucose <3.9 mmol/L) did not differ between the control day and walking days (p > 0.05 for all variables). The prolonged walking exercise was associated with a modest increase in glycemic variability compared with the control day (p < 0.05). Conclusion Prolonged walking exercise allows for profound reductions in daily insulin administration in persons with type 1 diabetes, despite large increments in energy and carbohydrate intake. When taking such adjustments into account, prolonged moderate-intensity exercise does not necessarily impair 24-h glycemic control. |
Keywords | Type 1 diabetes mellitus; Physical activity; Exercise; Walking; Glycemic control; Insulin |
Year | 2016 |
Journal | Diabetes Research and Clinical Practice |
Journal citation | 117, pp. 74 - 81 |
Publisher | Elsevier Ireland Ltd. |
ISSN | 0168-8227 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.diabres.2016.04.053 |
Scopus EID | 2-s2.0-84968903297 |
Page range | 74 - 81 |
Research Group | Mary MacKillop Institute for Health Research |
Publisher's version | File Access Level Controlled |
Place of publication | Ireland |
https://acuresearchbank.acu.edu.au/item/8v7q7/glycemic-control-during-consecutive-days-with-prolongedwalking-exercise-in-individuals-with-type-1-diabetes-mellitus
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