Morning Workout vs After Breakfast - Which Is Better For Diabetes?
Dr. Elise Brown discusses a morning workout vs after breakfast in diabetes, based on some of the latest diabetes and exercise research that reveals things to consider when making this decision. There have only been three research studies so far that tested exercising in a fasted state or fed state in diabetes over the course of months. Changes in risk factors to consider include HbA1c, intramuscular fat, and visceral fat. Any changes to diet or exercise should first be discussed with your doctor.
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Timecodes:
0:28 - Exercising before or after dinner for one session
1:15 - Energy sources and fat oxidation while exercising fasted or fed state
2:22 - Four months of walking at recommended guidelines: findings
4:23 - Studies that did not meet aerobic exercise guidelines
Sources used:
1. REES, JORDAN L.1,2; WALESIAK, DEVYN3; THOMPSON, RICHARD3; MAGER, DIANA2,4; SENIOR, PETER2,5; BOULÉ, NORMAND G.1,2. HbA1c and Liver Fat After 16 Weeks of Fasted versus Fed Exercise Training in Adults With Type 2 Diabetes. Medicine & Science in Sports & Exercise 57(1):p 106-114, January 2025. | DOI: 10.1249/MSS.0000000000003552
2. Heden TD, Winn NC, Mari A, et al. Postdinner resistance exercise improves postprandial risk factors more effectively than predinner resistance exercise in patients with
type 2 diabetes. J Appl Physiol (1985) 2015;118:624-34 https://doi.org/10.1152/
japplphysiol.00917.2014.
3. Vieira, A. F., Costa, R. R., Macedo, R. C. O., Coconcelli, L., & Kruel, L. F. M. (2016). Effects of aerobic exercise performed in fasted v. fed state on fat and carbohydrate metabolism in adults: a systematic review and meta-analysis. British Journal of Nutrition, 116(7), 1153-1164.
4. Konopka AR, Harber MP. Skeletal muscle hypertrophy after aerobic exercise training. Exerc Sport Sci Rev. 2014 Apr;42(2):53-61. doi: 10.1249/JES.0000000000000007. PMID: 24508740; PMCID: PMC4523889.
5. Brinkmann C, Weh-Gray O, Brixius K, Bloch W, Predel HG, Kreutz T. Effects of exercising before breakfast on the health of T2DM patients—a randomized controlled trial. Scand J Med Sci Sports. 2019;29(12):1930–6
6. Verboven K, Wens I, Vandenabeele F, Stevens AN, Celie B, Lapauw B, Dendale P, VAN Loon LJC, Calders P, Hansen D. Impact of Exercise-Nutritional State Interactions in Patients with Type 2 Diabetes. Med Sci Sports Exerc. 2020 Mar;52(3):720-728. doi: 10.1249/MSS.0000000000002165. PMID: 31652237.
7. Brown, E. C., Franklin, B. A., Regensteiner, J. G., & Stewart, K. J. (2020). Effects of single bout resistance exercise on glucose levels, insulin action, and cardiovascular risk in type 2 diabetes: A narrative review. Journal of Diabetes and its Complications, 34(8), 107610.
Images:
CC. Liver. T Sheasby, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
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