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Respiratory function in uncomplicated type 1 diabetes: Blunted during exercise even though normal at rest!
Islem Jlali1, Elsa Heyman1,2, Régis Matran3
1Univ. Lille, Univ. Artois, Univ. Littoral Côte d'Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France.
Diabetic Medicine : a Journal of the British Diabetic Association
|December 31, 2022
Summary
Individuals with type 1 diabetes have normal lung diffusion at rest but reduced lung function and exercise capacity during maximal exercise. This impacts aerobic fitness in type 1 diabetes patients.
Area of Science:
- Cardiology
- Pulmonology
- Endocrinology
Background:
- Type 1 diabetes is linked to impaired lung function, potentially affecting aerobic fitness.
- Understanding respiratory responses in type 1 diabetes is crucial for managing overall health and exercise capacity.
Purpose of the Study:
- To investigate the ventilatory response during maximal exercise in individuals with uncomplicated type 1 diabetes.
- To assess pulmonary diffusion capacity at rest in this population.
Main Methods:
- Compared 17 adults with type 1 diabetes (HbA1c 8.0%) to 17 matched non-diabetic controls.
- Assessed lung function via spirometry and diffusing capacity (DLCO) at rest.
- Measured respiratory parameters during a maximal exercise test.
Main Results:
- DLCO and its determinants were comparable between groups at rest.
- Spirometry parameters (FVC, FEV1) were lower in the type 1 diabetes group, though within normal limits.
- Tidal volume during exercise and maximal oxygen uptake (VO2max) were reduced in individuals with type 1 diabetes.
Conclusions:
- Individuals with uncomplicated type 1 diabetes exhibit normal resting alveolar-capillary diffusion.
- Reduced forced vital capacity, tidal volumes, and VO2max are observed during maximal exercise in type 1 diabetes.
- These findings highlight potential limitations in exercise performance for individuals with type 1 diabetes.
Keywords:
diffusion capacitymaximal exercisemicro-macrovascular complicationpulmonary functionspirometrytype 1 diabetesventilatory responseMore Related Videos
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