scholarly journals Responses to Low- and High-Intensity Exercise in Adolescents with Type 1 Diabetes in Relation to Their Level of VO2 Max

Author(s):  
Artur Myśliwiec ◽  
Maria Skalska ◽  
Arkadiusz Michalak ◽  
Jędrzej Chrzanowski ◽  
Małgorzata Szmigiero-Kawko ◽  
...  

The purpose of this study was to investigate the influence of maximal oxygen uptake (VO2 max) on the glycemic changes during low and high intensity exercises in young type 1 diabetic patients. Twenty boys (age: 14.3 ± 1.6 years; height: 171.0 ± 11.3 cm; weight; 59.5 ± 12.8 kg) were divided into low-fit group (LFG, n = 10) and high-fit group (HFG, n = 10). According to the experimental design, participants performed three physical efforts (VO2 max test, mixed aerobic–anaerobic effort and aerobic effort) on the cycloergometer, during which real-time glycemia was measured. Mixed aerobic–anaerobic exercise demanded significantly smaller carbohydrate supplementation (0.2 ± 0.2 g/kg during exercise) than the aerobic test session (0.4 ± 0.3 g/kg during exercise). Moreover, patients with higher VO2 max had lower tendency for glycemic changes during the aerobic effort. The results of the current study suggest that young type 1 diabetic patients should perform different intensity activities using continuous glycemic monitoring system to avoid acute and chronic complications of the disease.

2011 ◽  
Vol 19 (3) ◽  
pp. 374-381 ◽  
Author(s):  
Charbel Abi Khalil ◽  
Ronan Roussel ◽  
Kamel Mohammedi ◽  
Nicolas Danchin ◽  
Michel Marre

Diabetes is one of the most chronic diseases in Western populations. Mortality rates in diabetic patients are higher than in the general population and their prognosis following any cardiovascular event is generally worse. Type 1 diabetic patients’ acute complications-related mortality decreases with time and the interval free from the diagnosis of diabetes until the development of chronic complications is larger although global mortality is still higher than that of sex- and age-matched healthy individuals. As a consequence of better primary and secondary preventions, recent data in the general population show that there is a trend towards decreased cardiovascular events and increased life expectancy. The same thing applies for type 2 diabetic patients. However, increased survival in the general population associated to epidemic bursts of obesity and sedentarily all over the globe, leads to a higher incidence of type 2 diabetes worldwide. This counteracts the diminution of diabetes-related mortality that would move forward on an ascending slope in the next decades.


2014 ◽  
Author(s):  
Merve Yilmaz ◽  
Arzu Gedik ◽  
Simge Yilmaz ◽  
Belgin Bektas ◽  
Dilek Cimrin ◽  
...  

2017 ◽  
Author(s):  
Federica Ermetici ◽  
Silvia Briganti ◽  
Stefano Benedini ◽  
Roberto Codella ◽  
Paola Maffi ◽  
...  

2019 ◽  
Vol 22 (09) ◽  
pp. 154-160
Author(s):  
Hasanain Khaleel Shareef ◽  
Ahmed Adil Ali ◽  
Rafah F. Al-Jebori

2001 ◽  
Vol 281 (5) ◽  
pp. E1029-E1036 ◽  
Author(s):  
Raymond R. Russell ◽  
Deborah Chyun ◽  
Steven Song ◽  
Robert S. Sherwin ◽  
William V. Tamborlane ◽  
...  

Insulin-induced hypoglycemia occurs commonly in intensively treated patients with type 1 diabetes, but the cardiovascular consequences of hypoglycemia in these patients are not known. We studied left ventricular systolic [left ventricular ejection fraction (LVEF)] and diastolic [peak filling rate (PFR)] function by equilibrium radionuclide angiography during insulin infusion (12 pmol · kg−1 · min−1) under either hypoglycemic (∼2.8 mmol/l) or euglycemic (∼5 mmol/l) conditions in intensively treated patients with type 1 diabetes and healthy nondiabetic subjects ( n = 9 for each). During hypoglycemic hyperinsulinemia, there were significant increases in LVEF (ΔLVEF = 11 ± 2%) and PFR [ΔPFR = 0.88 ± 0.18 end diastolic volume (EDV)/s] in diabetic subjects as well as in the nondiabetic group (ΔLVEF = 13 ± 2%; ΔPFR = 0.79 ± 0.17 EDV/s). The increases in LVEF and PFR were comparable overall but occurred earlier in the nondiabetic group. A blunted increase in plasma catecholamine, cortisol, and glucagon concentrations occurred in response to hypoglycemia in the diabetic subjects. During euglycemic hyperinsulinemia, LVEF also increased in both the diabetic (ΔLVEF = 7 ± 1%) and nondiabetic (ΔLVEF = 4 ± 2%) groups, but PFR increased only in the diabetic group. In the comparison of the responses to hypoglycemic and euglycemic hyperinsulinemia, only the nondiabetic group had greater augmentation of LVEF, PFR, and cardiac output in the hypoglycemic study ( P < 0.05 for each). Thus intensively treated type 1 diabetic patients demonstrate delayed augmentation of ventricular function during moderate insulin-induced hypoglycemia. Although diabetic subjects have a more pronounced cardiac response to hyperinsulinemia per se than nondiabetic subjects, their response to hypoglycemia is blunted.


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