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Influence of exercise instruction method on the activation of vastus medialis obliques and vastus lateralis during a mini-squat
Date
2008
Abstract
The aim of this study was to investigate the effect of different exercise instruction methods on the activation of vastus medialis oblique (VMO) and vastus lateralis (VL) while performing a mini-squat. Thirty healthy volunteers were recruited from the student population of the University of Limerick and were randomised to one of three instruction groups; either (a) verbal instruction, (b) visual demonstration or (c) a combination of both instruction methods. Surface electromyographic activity was collected during the mini-squat for each instruction group and this was expressed as a percentage of maximal voluntary isometric contraction (MVIC). One-way ANOVAs were used to detect differences between groups. There were no significant differences noted in the muscle activation of VMO and VL, or the ratio of VMO: VL activity, when performing the mini-squat under the thee different types of instruction. This finding suggests that the type of instruction method had little influence over the performance of this relatively simple motor task amongst a healthy young population. This contrasts with previous studies of more complex motor tasks. Potential reasons for the discrepancies, and implications for future studies, are discussed.
Supervisor
Description
peer-reviewed
Publisher
Irish Society of Chartered Physiotherapists
Citation
Physiotherapy Ireland;29(1), pp. 55-60
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Funding code
Funding Information
Sustainable Development Goals
External Link
Type
Article
Rights
https://creativecommons.org/licenses/by-nc-sa/1.0/