Acute neuromuscular responses to a resistance exercise session performed using the DeLorme and Oxford techniques

• Authors: Rafael Pereira , Max Miller Alves Mendel , Ludmila Schettino , Marco Machado , Pierre Augusto-Silva
• Languages of publication: EN

Abstracts

EN

Purpose. The purpose of this study was to examine and compare acute neuromuscular behavior during a resistance exercise session (RES) conducted with the DeLorme and Oxford techniques. Methods. Seven healthy and trained participants volunteered to carry out two RES, one week apart, of unilateral elbow flexion. Each session was conducted with the DeLorme or Oxford techniques in a counterbalanced order. Electromyographic (EMG) data were recorded from the biceps brachii (BB) and triceps brachii (TRIC) during a maximal isometric voluntary contraction. Normalized EMG amplitude from BB and TRIC and the co-contraction ratio (CCR) during the concentric and eccentric phases were calculated. Results. The EMG amplitude from BB and TRIC as well as the CCR of both the concentric and eccentric phases were similar in both techniques. Additionally, normalized EMG amplitude from BB was higher during the concentric phase when compared with the eccentric phase for both techniques, supporting the hypotheses of distinct neural control for concentric and eccentric phases of movement. The DeLorme and Oxford techniques induced similar acute neuromuscular responses during the RES. Conclusions. Our results may support previous findings on similar strength gains after resistance training performed with both analyzed techniques.

Keywords

EN

strength training; electromyography; co-contraction

• Publisher: De Gruyter Open
• Journal: Human Movement
• Year: 2013
• Volume: 14
• Issue: 4
• Pages: 347-352

Dates

published

1 - 12 - 2013

online

14 - 02 - 2014

Contributors

author

Rafael Pereira

• State University of Southwest Bahia, Jequié, Bahia, Brazil

author

Max Miller Alves Mendel

• Laboratory of Physiology and Biokinetics, Iguaçu University (Campus V), Itaperuna, Brazil

author

Ludmila Schettino

• State University of Southwest Bahia, Jequié, Bahia, Brazil

author

Marco Machado

• Laboratory of Physiology and Biokinetics, Iguaçu University (Campus V), Itaperuna, Brazil
• University Fundation of Itaperuna (Funita), Itaperuna, Brazil

author

Pierre Augusto-Silva

• Department of Physioterapy, Redentor Faculty, Itaperuna, Brazil

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Identifiers

DOI

10.2478/humo-2013-0042