Effect of oral glucose supplementation on surface EMG during fatiguing dynamic exercise

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Title: Effect of oral glucose supplementation on surface EMG during fatiguing dynamic exercise
Authors: Davidson, ClareDe Vito, GiuseppeLowery, Madeleine M.
Permanent link: http://hdl.handle.net/10197/10876
Date: 20-Aug-2016
Online since: 2019-07-10T11:22:05Z
Abstract: The aim of this study was to examine the effect of oral glucose supplementation on the surface electromyographic (sEMG) signal recorded during a dynamic, fatiguing exercise protocol. Five healthy subjects participated in the study. Blood glucose concentration and sEMG signals from five upper leg muscles were recorded during a cycling exercise performed at 70% VO2peak until task failure, on two separate occasions. Glucose was consumed at 15 minute intervals throughout one trial. The median frequency of the sEMG was observed to increase progressively throughout the exercise, with a greater increase in the with glucose condition. This is in direct contrast to the typical decrease in median frequency known to occur during a fatiguing isometric contraction. The result may indicate an increase in Na+ - K+- AT Pase activity during fatiguing dynamic exercise resulting in an increase in muscle fiber membrane excitability due to membrane hyperpolarization.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2016 IEEE
Keywords: Surface electromyographyFatigueTime-frequency analysisSugarMusclesElectromyographyProtocolsBloodLegged locomotion
DOI: 10.1109/EMBC.2016.7591482
Other versions: https://embc.embs.org/2016/
https://embc.embs.org/2016/embc-2016-proceedings/
Language: en
Status of Item: Peer reviewed
Is part of: 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Conference Details: EMBC '16: 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Disney's Contemporary Resort, Orlando, FL, 16-20 August 2016
Appears in Collections:Electrical and Electronic Engineering Research Collection
Insight Research Collection
Institute for Sport & Health Research Collection

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