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Glycemic control during consecutive days with prolonged walking exercise in individuals with type 1 diabetes mellitus.

Glycemic control during consecutive days with prolonged walking exercise in individuals with type 1 diabetes mellitus.

Samenvatting

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 (∼8h 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 50km). RESULTS: Despite an increase in daily energy (31±18%; p<0.01) and carbohydrate (82±71g; 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 <3.9mmol/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.

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OrganisatieHAN University of Applied Sciences
AfdelingAcademie Sport en Bewegen
LectoraatSport en Voeding
Gepubliceerd inDiabetes Research and Clinical Practice Elsevier Science Publishers B.V., Vol. 117, Pagina's: 74-81
Jaar2016
TypeArtikel
DOI10.1016/j.diabres.2016.04.053
TaalOnbekend

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