Short-Acting Insulin Reduction Strategies for Continuous Cycle Ergometer Exercises in Patients with Type 1 Diabetes Mellitus
| Author | Othmar Moser | en |
| Author | Gerhard Tschakert | en |
| Author | Alexander Mueller | en |
| Author | Werner Groeschl | en |
| Author | Peter Hofmann | en |
| Author | Thomas Pieber | en |
| Author | Jimmy Lawrence | en |
| Author | Gerd Koehler | en |
| Issued Date | 2017-03-31 | en |
| Abstract | Background: The fear of hypoglycemia is the strongest barrier when patients with type 1 diabetes mellitus consider physical activity. There is still a lack of information regarding pre- and post-exercise therapy adaptation strategies with respect to different exercise intensities corresponding to the three phases of lactate metabolism. Objectives: The aim of this experimental, cross-sectional study was to investigate exercise intensity-dependent, short-acting insulin reductions to avoid hypoglycemia, applying standardized exercises using insulin degludec (®Tresiba/Novo Nordisk, Denmark). Methods: Seven male participants with type 1 diabetes mellitus were switched to insulin degludec. Intensities for the 30 minutes continuous cycle ergometer exercise tests were set at 5% below (A) and above (B) the lactate turn point 1, and below (C) and above (D) the lactate turn point 2. Reductions in short-acting insulin were applied as following: by 25% for intensity A, by 50% for intensity B and by 75% for intensities C and D four hours before the start of exercise and immediately after exercise. Blood glucose, interstitial glucose, lactate, catecholamines, cortisol, IGF-1 and glucagon were measured. Results: No hypoglycemic events occurred, but linear blood glucose decreases were observed: 2.01 ± 1.04 mmol.L-1, P = 0.35 (A), 3.00 ± 1.54 mmol.L-1, P = 0.48 (B), 3.42 ± 2.34 mmol.L-1, P = 0.40 (C), and 3.70 ± 3.36 mmol.L-1, P = 0.12 (D). Adrenaline, noradrenaline and IGF-1 (B, C, D, not A), dopamine (C, D, not A and B) and cortisol (A, C, D, not B) increased significantly from baseline, but not glucagon (P > 0.05). Interstitial glucose showed no post-exercise hypoglycemia. Conclusions: The applied therapy adaptation before and after exercises was adequate to avoid hypoglycemia while using an ultra-long-acting insulin. | en |
| DOI | https://doi.org/10.5812/asjsm.42160 | en |
| URI | https://brieflands.com/journals/asjsm/articles/13355 | en |
| Keyword | Glycemia | en |
| Keyword | Metabolism | en |
| Keyword | Hormones | en |
| Publisher | Brieflands | en |
| Title | Short-Acting Insulin Reduction Strategies for Continuous Cycle Ergometer Exercises in Patients with Type 1 Diabetes Mellitus | en |
| Type | Research Article | en |
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