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Exercise therapy in type 2 diabetes: is daily exercise required to optimize glycemic control?

ABSTRACT: Given the transient nature of exercise-induced improvements in insulin sensitivity, it has been speculated that daily exercise is preferred to maximize the benefits of exercise for glycemic control. The current study investigates the impact of daily exercise versus exercise performed every other day on glycemic control in type 2 diabetic patients.Thirty type 2 diabetic patients (age 60 ± 1 years, BMI 30.4 ± 0.7 kg/m(2), and HbA(1c) 7.2 ± 0.2%) participated in a randomized crossover experiment. Subjects were studied on three occasions for 3 days under strict dietary standardization but otherwise free-living conditions. Blood glucose homeostasis was assessed by continuous glucose monitoring over 48 h during which subjects performed no exercise (control) or 60 min of cycling exercise (50% maximal workload capacity) distributed either as a single session performed every other day or as 30 min of exercise performed daily.The prevalence of hyperglycemia (blood glucose >10 mmol/L) was reduced from 7:40 ± 1:00 h:min per day (32 ± 4% of the time) to 5:46 ± 0:58 and 5:51 ± 0:47 h:min per day, representing 24 ± 4 and 24 ± 3% of the time, when exercise was performed either daily or every other day, respectively (P < 0.001 for both treatments). No differences were observed between the impact of daily exercise and exercise performed every other day.A short 30-min session of moderate-intensity endurance-type exercise substantially reduces the prevalence of hyperglycemia throughout the subsequent day in type 2 diabetic patients. When total work is being matched, daily exercise does not further improve daily glycemia compared with exercise performed every other day.

SUBMITTER: van Dijk JW

PROVIDER: S-EPMC3329820 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature

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Exercise therapy in type 2 diabetes: is daily exercise required to optimize glycemic control?

van Dijk Jan-Willem JW Tummers Kyra K Stehouwer Coen D A CD Hartgens Fred F van Loon Luc J C LJ

Diabetes care 20120307 5

<h4>Objective</h4>Given the transient nature of exercise-induced improvements in insulin sensitivity, it has been speculated that daily exercise is preferred to maximize the benefits of exercise for glycemic control. The current study investigates the impact of daily exercise versus exercise performed every other day on glycemic control in type 2 diabetic patients.<h4>Research design and methods</h4>Thirty type 2 diabetic patients (age 60 ± 1 years, BMI 30.4 ± 0.7 kg/m(2), and HbA(1c) 7.2 ± 0.2% ...[more]

PMID: 22399700

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Project description:INTRODUCTION:DUAL II Japan (NCT02911948) was a 26-week, phase 3a randomized, treat-to-target trial which compared the efficacy and safety of IDegLira with degludec in 210 Japanese patients with type 2 diabetes (T2D) uncontrolled on premixed or basal insulin therapy. The DUAL II Japan trial presented the opportunity for a post hoc analysis to examine the safety and efficacy of switching patients from a premixed regimen (containing both basal and bolus insulin components) to IDegLira. METHODS:Patients from DUAL II Japan were stratified according to prior insulin regimen (premixed or basal insulin). The following endpoints were assessed in this post hoc analysis by pre-trial insulin regimen: change in HbA1c, body weight, daily total insulin dose, nine-point self-measured blood glucose, and severe or blood glucose-confirmed hypoglycemia (defined as severe or plasma glucose less than 56 mg/dL). RESULTS:This post hoc analysis included 39 patients who switched from premixed insulin to IDegLira. The treatment effect in this population was independent of insulin type at baseline (premixed or basal; interaction test, P = 0.2535). In patients switching from premixed insulin to IDegLira, mean [standard deviation (SD)] HbA1c was 8.26% (0.73) at baseline and 6.68% (0.93) at week 26. Mean (SD) body weight was reduced by 1.5 (2.9) kg. At week 26, daily insulin dose was 34.2 dose steps. After 26 weeks, the mean prandial increment was smaller at all meals with IDegLira irrespective of pre-trial insulin regimen. Rate of hypoglycemic events was 2.59 events/patient-year of exposure over the 26 weeks. CONCLUSION:This post hoc study is the first to evaluate the switch from premixed insulin to IDegLira in patients with uncontrolled T2D. IDegLira initiation resulted in improved HbA1c and weight loss. This study offers insight into the effectiveness and safety of switching patients from premixed insulin therapy to IDegLira, and provides support for further investigation. TRIAL REGISTRATION:NCT02911948.

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Exercise therapy in type 2 diabetes: is daily exercise required to optimize glycemic control?

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Exercise therapy in type 2 diabetes: is daily exercise required to optimize glycemic control?

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