A comparison of acute glycaemic responses to accumulated or single bout walking exercise in apparently healthy, insufficiently active adults.

Autor: Shambrook P; Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, Australia., Kingsley MI; Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, Australia., Taylor NF; School of Allied Health, Human Services and Sport, La Trobe University, Australia., Wundersitz DW; Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, Australia., Wundersitz CE; Angliss Hospital Community Rehabilitation Program, Eastern Health, Australia., Paton CD; School of Health and Sport Science, Eastern Institute of Technology, New Zealand., Gordon BA; Holsworth Research Initiative, La Trobe Rural Health School, La Trobe University, Australia. Electronic address: b.gordon@latrobe.edu.au.
Jazyk: angličtina
Zdroj: Journal of science and medicine in sport [J Sci Med Sport] 2020 Oct; Vol. 23 (10), pp. 902-907. Date of Electronic Publication: 2020 Mar 06.
DOI: 10.1016/j.jsams.2020.02.015
Abstrakt: Objectives: To investigate the acute glyacaemic response to accumulated or single bout walking exercise in apparently healthy adults.
Design: Three arm, randomised crossover control study.
Methods: Ten adults (age: 50±12.6 y; BMI 29.0±5.4kgm -2 ) completed three separate trials comprising three 10-min walking bouts after breakfast, lunch, and dinner (APPW), a single 30-min walking bout after dinner only (CPPW), or a no-exercise control (NOEX). Participants walked on a treadmill at a moderate intensity of 55%-70% heart rate reserve. Two-hour postprandial glucose response was assessed using a continuous glucose monitor.
Results: There was a difference in the pattern of the glucose response between the trials during the two hours following dinner (p<0.001). Postprandial dinner glucose concentrations were not different between APPW and CPPW but were up to 1.01mmolL -1 lower than NOEX (partial eta 2 =0.21, p=0.041).
Conclusions: Ten minutes of moderate intensity walking completed 30min after each meal lowers postprandial dinner glucose concentrations in comparison to no-exercise, and reduces glucose by a similar magnitude as a single 30-min bout after the evening meal. Short bouts of exercise after each meal may be recommended to minimise glucose elevations after dinner that might increase risk of cardiometabolic disease.
(Copyright © 2020 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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