Comparison of Different Methods for Identification of Electromyography Threshold in Resistance Exercise

Authors

  • Pablo Ramon Domingos Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil / Laboratory of Motor Evaluation/Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.
  • Raul Canestri Galvino Reis Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil.
  • Hiago Leandro Rodrigues de Souza Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil / Studies Research Group in Human Performance and Sports/Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
  • Yuri de Almeida Costa Campos Laboratory of Motor Evaluation/Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil / Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil.
  • Sandro Fernandes da Silva Studies Research Group in Neuromuscular Responses (GEPREN, University of Lavras, Lavras, Brazil

DOI:

https://doi.org/10.3823/2217

Keywords:

Electromyography Threshold, Resistance Exercise; Threshold Transition; Exercise Prescription

Abstract

Objective: This study aimed to identify the Electromyographic Threshold (EMGTh) during the dynamic Resistance Exercise, using visual and mathematical identification techniques.

Methods and Results: We evaluated 14 male subjects (22.6 ± 2.1 years) who accomplished an incremental load protocol (10-10% of 1RM) in a half squat guided exercise. The intra-class correlation coefficient (ICC) was used to compare the EMGTh identification methods, in which high reproducibility value was obtained (0.835), confirmed by a moderately strong correlation of 0.721, in general, and yet a pairwise comparison by the Wilcoxon test, which was not identified any difference between the two methods (p> 0.05).

Conclusion: Therefore, the findings of this study show that both methods, visual and mathematical, used to identify the EMGTh, find the same results.

Author Biographies

Pablo Ramon Domingos, Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil / Laboratory of Motor Evaluation/Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.

Laboratory of Motor Evaluation/Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.

Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil.

Raul Canestri Galvino Reis, Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil.

Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil.

Hiago Leandro Rodrigues de Souza, Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil / Studies Research Group in Human Performance and Sports/Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil

Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil.

Studies Research Group in Human Performance and Sports/Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil.

Yuri de Almeida Costa Campos, Laboratory of Motor Evaluation/Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil / Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil.

Laboratory of Motor Evaluation/Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.

Studies Research Group in Neuromuscular Responses–Universidade Federal de Lavras, Lavras, MG, Brazil.

Sandro Fernandes da Silva, Studies Research Group in Neuromuscular Responses (GEPREN, University of Lavras, Lavras, Brazil

Studies Research Group in Neuromuscular Responses GEPREN, Physical Education Departament - University of Lavras, Lavras, Brazil

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Published

2016-12-04

Issue

Section

Sports Medicine