Different types of mechanical vibration application on EMG response and strength performance

Aler Almeida; Marcos Daniel Motta Drummond; Leszek Szmuchrowski; Gustavo F Pedrosa; Bruno Couto

doi:10.1590/s1980-657420220009221

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Different types of mechanical vibration application on EMG response and strength performance

Journal article

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Different types of mechanical vibration application on EMG response and strength performance

Aler Almeida, Marcos Daniel Motta Drummond, Leszek Szmuchrowski, Gustavo F Pedrosa and Bruno Couto

Motriz. Revista de Educacao Fisica, Vol.28, pp.1-9

2022

DOI: https://doi.org/10.1590/s1980-657420220009221

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Abstract

muscle spindle

electromyography

strength training

one maximum repetition test

Aim: The present study aimed to compare the strength performance and the neuromuscular activity during one maximum repetition test (1RM), and the maximum voluntary isometric contractions (MVIC) performed with whole-body vibration (WBV), local vibration (LV), and no vibration (NV). Methods: The sample consisted of 15 males, experienced in strength training for at least 6 months, which performed all strength tests in the barbell curl exercise across randomized trials on the following conditions: NV, WBV, and LV. During all tests, the normalized root means square values of the electromyographic signals (EMGRMS) of the biceps brachii and brachioradialis were recorded and compared between the conditions. The one-way ANOVAs with repeated measures were used to compare the results of 1RM and MVIC tests and the normalized EMGRMS between the conditions. When necessary, a post hoc Scott-Knott test was used to identify the differences reported in the ANOVAs. The significance level adopted was α < 0.05. Results: The EMGRMS response of the biceps brachii and brachioradialis muscles during the 1RM and MVIC tests presented significantly higher values at LV compared to WBV, and NV (p < 0.001). The 1RM tests, and the MVIC results were similar between conditions (p = 0.9803; p = 0.061, respectively). Conclusion: These results indicate that the application of MV was not sufficient to increase strength performance.

Details

Title: Different types of mechanical vibration application on EMG response and strength performance
Authors: Aler Almeida (Corresponding Author) - Universidade Federal de Minas Gerais
Marcos Daniel Motta Drummond - Universidade Federal de Minas Gerais
Leszek Szmuchrowski - Universidade Federal de Minas Gerais
Gustavo F Pedrosa - Centro de Instrução e Adaptação da Aeronáutica (Brazil)
Bruno Couto - Universidade Federal de Minas Gerais
Publication details: Motriz. Revista de Educacao Fisica, Vol.28, pp.1-9
Publisher: Universidade Estadual Paulista "Julio de Mesquita Filho", Departamento de Educacao Fisica
Date published: 2022
DOI: 10.1590/s1980-657420220009221
ISSN: 1980-6574
Organisation Unit: School of Health - Sports & Exercise Science
Language: English
Record Identifier: 991266494802621
Output Type: Journal article

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