The impact of brief high-intensity exercise on blood glucose levels

O Peter AdamsFaculty of Medical Sciences, the University of the West Indies, Cave Hill Campus, St Michael, BarbadosBackground: Moderate-intensity exercise improves blood glucose (BG), but most people fail to achieve the required exercise volume. High-intensity exercise (HIE) protocols vary. Maximal...

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Autor principal:	Adams OP
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2013
Materias:	Specialties of internal medicine RC581-951
Acceso en línea:	https://doaj.org/article/190eb68372da4ebea5750496007fdc3e
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spelling	oai:doaj.org-article:190eb68372da4ebea5750496007fdc3e2021-12-02T01:37:00ZThe impact of brief high-intensity exercise on blood glucose levels1178-7007https://doaj.org/article/190eb68372da4ebea5750496007fdc3e2013-02-01T00:00:00Zhttp://www.dovepress.com/the-impact-of-brief-high-intensity-exercise-on-blood-glucose-levels-a12315https://doaj.org/toc/1178-7007O Peter AdamsFaculty of Medical Sciences, the University of the West Indies, Cave Hill Campus, St Michael, BarbadosBackground: Moderate-intensity exercise improves blood glucose (BG), but most people fail to achieve the required exercise volume. High-intensity exercise (HIE) protocols vary. Maximal cycle ergometer sprint interval training typically requires only 2.5 minutes of HIE and a total training time commitment (including rest and warm up) of 25 minutes per session. The effect of brief high-intensity exercise on blood glucose levels of people with and without diabetes is reviewed.Methods: HIE (&ge;80% maximal oxygen uptake, VO2max) studies with &le;15 minutes HIE per session were reviewed.Results: Six studies of nondiabetics (51 males, 14 females) requiring 7.5 to 20 minutes/week of HIE are reviewed. Two weeks of sprint interval training increased insulin sensitivity up to 3 days postintervention. Twelve weeks near maximal interval running (total exercise time 40 minutes/week) improved BG to a similar extent as running at 65% VO2max for 150 minutes/week. Eight studies of diabetics (41 type 1 and 22 type 2 subjects) were reviewed. Six were of a single exercise session with 44 seconds to 13 minutes of HIE, and the others were 2 and 7 weeks duration with 20 and 2 minutes/week HIE, respectively. With type 1 and 2 diabetes, BG was generally higher during and up to 2 hours after HIE compared to controls. With type 1 diabetics, BG decreased from midnight to 6 AM following HIE the previous morning. With type 2 diabetes, a single session improved postprandial BG for 24 hours, while a 2-week program reduced the average BG by 13% at 48 to 72 hours after exercise and also increased GLUT4 by 369%.Conclusion: Very brief HIE improves BG 1 to 3 days postexercise in both diabetics and nondiabetics. HIE is unlikely to cause hypoglycemia during and immediately after exercise. Larger and longer randomized studies are needed to determine the safety, acceptability, long-term efficacy, and optimal exercise intensity and duration.Keywords: high-intensity interval training, sprint interval training, diabetes, glucoseAdams OPDove Medical PressarticleSpecialties of internal medicineRC581-951ENDiabetes, Metabolic Syndrome and Obesity: Targets and Therapy, Vol 2013, Iss default, Pp 113-122 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Specialties of internal medicine RC581-951
spellingShingle	Specialties of internal medicine RC581-951 Adams OP The impact of brief high-intensity exercise on blood glucose levels
description	O Peter AdamsFaculty of Medical Sciences, the University of the West Indies, Cave Hill Campus, St Michael, BarbadosBackground: Moderate-intensity exercise improves blood glucose (BG), but most people fail to achieve the required exercise volume. High-intensity exercise (HIE) protocols vary. Maximal cycle ergometer sprint interval training typically requires only 2.5 minutes of HIE and a total training time commitment (including rest and warm up) of 25 minutes per session. The effect of brief high-intensity exercise on blood glucose levels of people with and without diabetes is reviewed.Methods: HIE (&ge;80% maximal oxygen uptake, VO2max) studies with &le;15 minutes HIE per session were reviewed.Results: Six studies of nondiabetics (51 males, 14 females) requiring 7.5 to 20 minutes/week of HIE are reviewed. Two weeks of sprint interval training increased insulin sensitivity up to 3 days postintervention. Twelve weeks near maximal interval running (total exercise time 40 minutes/week) improved BG to a similar extent as running at 65% VO2max for 150 minutes/week. Eight studies of diabetics (41 type 1 and 22 type 2 subjects) were reviewed. Six were of a single exercise session with 44 seconds to 13 minutes of HIE, and the others were 2 and 7 weeks duration with 20 and 2 minutes/week HIE, respectively. With type 1 and 2 diabetes, BG was generally higher during and up to 2 hours after HIE compared to controls. With type 1 diabetics, BG decreased from midnight to 6 AM following HIE the previous morning. With type 2 diabetes, a single session improved postprandial BG for 24 hours, while a 2-week program reduced the average BG by 13% at 48 to 72 hours after exercise and also increased GLUT4 by 369%.Conclusion: Very brief HIE improves BG 1 to 3 days postexercise in both diabetics and nondiabetics. HIE is unlikely to cause hypoglycemia during and immediately after exercise. Larger and longer randomized studies are needed to determine the safety, acceptability, long-term efficacy, and optimal exercise intensity and duration.Keywords: high-intensity interval training, sprint interval training, diabetes, glucose
format	article
author	Adams OP
author_facet	Adams OP
author_sort	Adams OP
title	The impact of brief high-intensity exercise on blood glucose levels
title_short	The impact of brief high-intensity exercise on blood glucose levels
title_full	The impact of brief high-intensity exercise on blood glucose levels
title_fullStr	The impact of brief high-intensity exercise on blood glucose levels
title_full_unstemmed	The impact of brief high-intensity exercise on blood glucose levels
title_sort	impact of brief high-intensity exercise on blood glucose levels
publisher	Dove Medical Press
publishDate	2013
url	https://doaj.org/article/190eb68372da4ebea5750496007fdc3e
work_keys_str_mv	AT adamsop theimpactofbriefhighintensityexerciseonbloodglucoselevels AT adamsop impactofbriefhighintensityexerciseonbloodglucoselevels
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The impact of brief high-intensity exercise on blood glucose levels

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