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KMID : 0359420230410010036
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Korean Journal of Sports Medicine
2023 Volume.41 No. 1 p.36 ~ p.44
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Effects of a Single Bout of High-Intensity Interval Training and Moderate-Intensity Continuous Training on Blood Glucose Homeostasis and Exosome in Young Adults
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Kong Ji-Young
Kang Hyun-Sik
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Abstract
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Purpose : The study investigated the effects of a single bout of high-intensity interval training (HIIT) andmoderate-intensity continuous training (MICT) on blood glucose homeostasis and exosome levels in young healthyadults.
Methods: A total of 20 healthy young people aged 20 to 30 years were voluntarily recruited from our local community.
The subjects were randomly assigned to either HIIT or MICT.
Results: The analyses of variance with repeated measures showed that HIIT resulted in a significant treatment(before vs. after HIIT)×time (0, 30, 60, 90, and 120 minutes during oral glucose tolerance tests) interaction(F(1,9)=5.623, p=0.028) on blood glucose concentrations. HIIT resulted in significant decreases in blood glucose levelsat 90 minutes (p＜0.05) and 120 minutes (p＜0.05). MICT did not result in any significant treatment×time interactionon blood glucose concentrations. Neither HIIT nor MICT resulted in any significant treatment×time interaction onblood insulin concentrations. Finally, there was a significant treatment×time interaction (F(1,19)=11.815, p＜0.001) incirculating exosome levels. HIIT resulted in a significant increase in exosome levels, whereas MICT did not.
Conclusion: In conclusion, the current findings suggest that HIIT would be a better strategy for improving glucosehomeostasis than MICT. Yet, the underlying mechanism(s) remain to be unveiled in a future study.
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KEYWORD
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High-intensity interval training, Glucose homeostasis, Insulin resistance, Exosomes
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