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How Type I Diabetes Responds to Different Diets (Normoglucidic or Ketogenic) During Physical Activity at Altitude
Sponsor: Centre Hospitalier Metropole Savoie
Summary
To date, no study has shown the effects of diets (normoglucidic or ketogenic) on type I diabetes during physical activity (hiking, ski touring) at altitude. The ketogenic diet in the general population is increasingly studied scientifically, but no clinical trial has studied it in type I diabetic patients during physical activity at altitude. Similarly, no study has investigated the effects of this diet on ketone and blood glucose levels in athletes during physical activity at altitude. Therefore, its impact on blood glucose and ketone levels during exercise at altitude is unknown in healthy and type I diabetic subjects. Since the investigators are studying ketonemia at altitude, and since ketonemia depends on insulin and carbohydrate intake, it is necessary to also study a control group with the same diet, in order to analyse whether the results obtained at altitude are related to the diet alone or to the diet in the context of diabetes. In order to avoid certain biases and confounding factors, the type I diabetic group will be compared to a control group of healthy subjects, in which the subjects have the same diet as the diabetic group. This is a pioneering study, of significant interest because the ketogenic diet is recent and rapidly increasing in interest in diabetic patients, with no scientific data for mountain physical activity. Doctors, diabetologists and sports doctors, are still without data to advise their diabetic patients who wish to follow a ketogenic diet on the benefits/risks of this diet, or to explain to them how to react to physical activity in the mountains.
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
5
Start Date
2023-06-02
Completion Date
2023-09-01
Last Updated
2026-10-08
Healthy Volunteers
Yes
Interventions
physical activity outings in the mountains at a level already practised by the subjects, while maintaining their usual diet (normoglucidic or ketogenic)
organisation of 4 physical activity outings in the mountains at a level already practised by the subjects, while maintaining their usual diet (normoglucidic or ketogenic). During each of of the 4 physical activity outings, collection of capillary blood samples (blood sugar, ketone levels), non-invasive biometric data (weight, oxygen saturation by transcutaneous sensor), and questionnaires (BORG scale, food consumption before/during/after exercise).
Locations (1)
Marie-Christine Carret
Chambéry, Cente Hospitalier Métropole Savoie, France