A Comparison of the Gluco-Regulatory Responses to High-Intensity Interval Exercise and Resistance Exercise

Brett A. Gordon, Caroline J. Taylor, Jarrod E. Church and Stephen D. Cousins
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Brett A. Gordon: Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, Bendigo, VIC 3550, Australia
Caroline J. Taylor: Department of Physiology, Anatomy & Microbiology, La Trobe University, Bundoora, VIC 3086, Australia
Jarrod E. Church: Department of Physiology, Anatomy & Microbiology, La Trobe University, Bundoora, VIC 3086, Australia
Stephen D. Cousins: Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, Bendigo, VIC 3550, Australia

IJERPH, 2021, vol. 18, issue 1, 1-11

Abstract: High-intensity interval exercise and resistance exercise both effectively lower blood glucose; however, it is not clear whether different regulatory mechanisms exist. This randomised cross-over study compared the acute gluco-regulatory and the physiological responses of high-intensity interval exercise and resistance exercise. Sixteen (eight males and eight females) recreationally active individuals, aged (mean ± SD) 22 ± 7 years, participated with a seven-day period between interventions. The high-intensity interval exercise trial consisted of twelve, 30 s cycling intervals at 80% of peak power capacity and 90 s active recovery. The resistance exercise trial consisted of four sets of 10 repetitions for three lower-limb exercises at 80% 1-RM, matched for duration of high-intensity interval exercise. Exercise was performed after an overnight fast, with blood samples collected every 30 min, for two hours after exercise. There was a significant interaction between time and intervention for glucose ( p = 0.02), which was, on average (mean ± SD), 0.7 ± 0.7 mmol?L −1 higher following high-intensity interval exercise, as compared to resistance exercise. Cortisol concentration over time was affected by intervention ( p = 0.03), with cortisol 70 ± 103 ng?mL −1 higher ( p = 0.015), on average, following high-intensity interval exercise. Resistance exercise did not induce the acute rise in glucose that was induced by high-intensity interval exercise and appears to be an appropriate alternative to positively regulate blood glucose.

Keywords: resistance training; high-intensity interval training; metabolism; insulin; stress; exercise (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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