scholarly journals Impact of type 2 diabetes on cardiorespiratory function and exercise performance

2016 ◽  
Author(s):  
Joanie Caron ◽  
Gregory R. duManoir ◽  
Lawrence Labrecque ◽  
Audrey Chouinard ◽  
Annie Ferland ◽  
...  

AbstractThe aim of this study was to examine the impact of well-controlled uncomplicated type 2 diabetes (T2D) on exercise performance. Six obese sedentary men with T2D and 7 control participants without diabetes matched for age, sex and body mass index were recruited. Anthropometric characteristics, blood samples, resting cardiac and pulmonary functions and maximal oxygen uptake (VO2max) and ventilatory threshold were measured on a first visit. On the four subsequent visits, participants performed step transitions (6 min) of moderate-intensity exercise on an upright cycle ergometer from unloaded pedaling to 80 % of ventilatory threshold. VO2(τVO2) and HR (τHR) kinetics were characterized with a mono-exponential model. VO2max (27.8±4.0 vs. 27.5±5.3 ml kg-1min-1; p=0.95), τVO2(43±6 vs. 43±10 s; p=0.73) and τHR (42±17 vs. 43±13 s; p=0.94) were similar between diabetics and controls respectively. The remaining variables were also similar between groups. These results suggest that well-controlled T2D is not associated with a reduction in VO2max or slower τVO2and τHR.

2017 ◽  
Vol 5 (4) ◽  
pp. e13145 ◽  
Author(s):  
Joanie Caron ◽  
Gregory R. duManoir ◽  
Lawrence Labrecque ◽  
Audrey Chouinard ◽  
Annie Ferland ◽  
...  

2019 ◽  
Vol 44 (4) ◽  
pp. 348-356 ◽  
Author(s):  
Ariane Aparecida Viana ◽  
Bianca Fernandes ◽  
Cristian Alvarez ◽  
Guilherme Veiga Guimarães ◽  
Emmanuel Gomes Ciolac

We tested the hypothesis that rating of perceived exertion (RPE) is a tool as efficient as the heart rate (HR) response to the cardiopulmonary exercise test (CPX) for prescribing and self-regulating high-intensity interval exercise (HIIE), and that metabolic and hemodynamic response to HIIE is superior than to continuous moderate-intensity exercise (MICE) in individuals with type 2 diabetes mellitus (T2DM). Eleven participants (age = 52.3 ± 3 years) underwent HIIE prescribed and self-regulated by RPE (HIIERPE; 25 min), HIIE prescribed and regulated by an individual’s HR response to CPX (HIIEHR; 25 min), MICE prescribed and self-regulated by RPE (30 min) and control (30 min of seated resting) intervention in random order. HR, blood pressure (BP), capillary glucose, endothelial reactivity, and carotid-femoral pulse wave velocity were assessed before, immediately after, and 45 min after each intervention. Exercise HR, speed, and distance were measured during exercise sessions. Twenty-four-hour ambulatory BP was measured after each intervention. Exercise HR, speed, and distance were similar between HIIERPE and HIIEHR. BP response was not different among HIIERPE, HIIEHR, and MICE. Capillary glycaemia reduction was greater (P < 0.05) after HIIERPE (48.6 ± 9.6 mg/dL) and HIIEHR (47.2 ± 9.5 mg/dL) than MICE (29.5 ± 11.5 mg/dL). Reduction (P < 0.05) in 24-h (6.7 ± 2.2 mm Hg) and tendency toward reduction (P = 0.06) in daytime systolic (7.0 ± 2.5 mm Hg) ambulatory BP were found only after HIIERPE. These results suggest that HIIE is superior to MICE for reducing glycaemia and ambulatory BP, and that the 6–20 RPE scale is a useful tool for prescribing and self-regulating HIIE in individuals with T2DM.


2014 ◽  
Vol 5 (6) ◽  
pp. 722-727 ◽  
Author(s):  
Rajesh Kumar Goit ◽  
Bishnu Hari Paudel ◽  
Rita Khadka ◽  
Roshan Kumar Roy ◽  
Mukesh Kumar Shrewastwa

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Tasuku Terada ◽  
Alanna Friesen ◽  
Baljot S. Chahal ◽  
Gordon J. Bell ◽  
Linda J. McCargar ◽  
...  

Aim. To explore the factors associated with exercise-induced acute capillary glucose (CapBG) changes in individuals with type 2 diabetes (T2D).Methods. Fifteen individuals with T2D were randomly assigned to energy-matched high intensity interval exercise (HI-IE) and moderate intensity continuous exercise (MI-CE) interventions and performed a designated exercise protocol 5 days per week for 12 weeks. The duration of exercise progressed from 30 to 60 minutes. CapBG was measured immediately before and after each exercise session. Timing of food and antihyperglycemic medication intake prior to exercise was recorded.Results. Overall, the mean CapBG was lowered by 1.9 mmol/L (P<0.001) with the change ranging from −8.9 to +2.7 mmol/L. Preexercise CapBG (44%;P<0.001), medication (5%;P<0.001), food intake (4%;P=0.043), exercise duration (5%;P<0.001), and exercise intensity (1%;P=0.007) were all associated with CapBG changes, explaining 59% of the variability.Conclusion. The greater reduction in CapBG seen in individuals with higher preexercise CapBG may suggest the importance of exercise in the population with elevated glycemia. Lower blood glucose can be achieved with moderate intensity exercise, but prolonging exercise duration and/or including brief bouts of intense exercise accentuate the reduction, which can further be magnified by performing exercise after meals and antihyperglycemic medication. This trial is registered with ClinicalTrial.govNCT01144078.


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