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The Journal of Sports Medicine and Physical Fitness 2021 Dec 21

DOI: 10.23736/S0022-4707.21.12717-3

Copyright © 2021 EDIZIONI MINERVA MEDICA

language: English

Acute high intensity interval exercise is similarly effective as moderate intensity continuous exercise on plasma glucose control in type 2 diabetic men aged 30 to 50 years: a randomized controlled trial

Xinwen CUI 1, 2, Jianfang XU 1, Xingya YANG 1, Lifeng LI 2, Xiao JIA 2, Jingjing YU 2, Naishi LI 3 , Yimin ZHANG 2

1 China Institute of Sport Science, Dongcheng District, Beijing, China; 2 Key Laboratory of Exercise and Physical Fitness, Ministry of Education, Beijing Sport University, Haidian District, Beijing, China; 3 Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China


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BACKGROUND: This study aimed to compare the acute effects of high-intensity interval exercise (HIIE) versus moderate-intensity continuous exercise (MICE) on postprandial plasma glucose and insulin concentrations in men aged 30-50 years with type 2 diabetes (T2D), hoping to provide empirical evidence for the effects of different exercise types on glucose management in T2D patients.
METHODS: 14 men with type 2 diabetes (T2D) underwent a randomized three crossover intervention: HIIE with cycling; energy expenditure matched MICE with cycling; and a sedentary control (CON)) in postprandial state. Plasma glucose and insulin levels were measured at pre-exercise, post-exercise, 1 h post-exercise, pre-lunch and 1 h post-lunch, respectively. Responses of areas under the curve (AUC) during 4 h from pre-exercise to 1 h post-lunch were also calculated.
RESULTS: Both HIIE and MICE decreased plasma glucose and insulin levels during 4 h experimental period compared to CON, with significant intervention × time interaction effects for glucose (P = 0.001) and insulin (P = 0.006) values evolution. Area under curve (AUCs) for glucose and insulin were reduced in HIIE and MICE compared to CON (P < 0.05), whereas no differences were found between HIIE and MICE.
CONCLUSIONS: Acute HIIE and the matched MICE improve plasma glucose control in the same magnitude in type 2 diabetic men aged 30-50 years.


KEY WORDS: High intensity interval exercise; Plasma glucose; Plasma insulin; Type 2 diabetes

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