Extremely short duration interval exercise improves 24-h glycaemia in men with type 2 diabetes

European Journal of Applied Physiology
Richard S MetcalfeGareth W Davison

Abstract

Reduced-exertion high-intensity interval training (REHIT) is a genuinely time-efficient exercise intervention that improves aerobic capacity and blood pressure in men with type 2 diabetes. However, the acute effects of REHIT on 24-h glycaemia have not been examined. 11 men with type 2 diabetes (mean ± SD: age, 52 ± 6 years; BMI, 29.7 ± 3.1 kg/m2; HbA1c, 7.0 ± 0.8%) participated in a randomised, four-trial crossover study, with continual interstitial glucose measurements captured during a 24-h dietary-standardised period following either (1) no exercise (CON); (2) 30 min of continuous exercise (MICT); (3) 10 × 1 min at ~ 90 HRmax (HIIT; time commitment, ~ 25 min); and (4) 2 × 20 s 'all-out' sprints (REHIT; time commitment, 10 min). Compared to CON, mean 24-h glucose was lower following REHIT (mean ± 95%CI: - 0.58 ± 0.41 mmol/L, p = 0.008, d = 0.55) and tended to be lower with MICT (- 0.37 ± 0.41 mmol/L, p = 0.08, d = 0.35), but was not significantly altered following HIIT (- 0.37 ± 0.59 mmol/L, p = 0.31, d = 0.35). This seemed to be largely driven by a lower glycaemic response (area under the curve) to dinner following both REHIT and MICT (- 11%, p < 0.05 and d > 0.9 for both) but not HIIT (- 4%, p = 0.22, d = 0.38). Time in hyp...Continue Reading

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Citations

Sep 5, 2020·Diabetes, Metabolic Syndrome and Obesity : Targets and Therapy·Addisu Dabi Wake
Nov 18, 2020·Proceedings of the National Academy of Sciences of the United States of America·Carlos CastañoMarcelina Párrizas
Apr 9, 2021·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Drusus A Johnson-BonsonJames A Betts

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Clinical Trials Mentioned

NCT03082859

Software Mentioned

Excel
GraphPad Prism
Actihearts
Excel GV
REHIT
Actiheart

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