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A comparison of muscle activity of the dominant and non-dominant side of the body during low versus high loaded bench press exercise performed to muscular failure.
J Electromyogr Kinesiol. 2021 Feb; 56:102513.JE

Abstract

The main aim of the study was to compare the peak surface electromyography (sEMG) amplitude of muscles during low and high loaded bench press exercises performed to muscular failure on the dominant and non-dominant body side. Ten resistance-trained healthy males with at least six-year experience in resistance training (27.7 ± 5.6 years, 81.1 ± 5.8 kg and 175.3 ± 5.2 cm, bench press one-repetition maximum [1RM] = 98.9 ± 7.1 kg) performed the bench press at 50% and at 90%1RM. The differences in peak sEMG amplitude between body-sides and the external loads were recorded for the pectoralis major (PM), anterior deltoid (AD), and the long head of the triceps brachii (TB) during each attempt. A two-way repeated-measures ANOVAs revealed statistically significant main effect of side for AD (p < 0.001) and TB (p < 0.001) but not for PM (p = 0.168) and a significant main effect of load for TB (p < 0.001) but not for AD and PM (p = 0.229; p = 0.072; respectively). The post-hoc analysis for the main effect of side showed significantly higher peak sEMG amplitude for the dominant side compared to the non-dominant side for AD and TB at 50%1RM and 90%1RM (p < 0.001; all) with no statistically significant differences for PM (p = 0.187; p = 0.155; both loads). The post-hoc analysis for the main effect of load for TB revealed a significantly higher peak sEMG amplitude at 90%1RM compared to the 50%1RM (p = 0.009). The obtained results indicate that regardless of the external load, the peak sEMG activity of the AD, PM, and TB during the bench press exercise performed to muscular failure was higher on the dominant body-side.

Authors+Show Affiliations

Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland. Electronic address: m.krzysztofik@awf.katowice.pl.Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland.Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland.Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland.University of Physical Education and Sport, Faculty of Physical Education, Gdansk, Poland.Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland.Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland.

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

33422743

Citation

Krzysztofik, Michal, et al. "A Comparison of Muscle Activity of the Dominant and Non-dominant Side of the Body During Low Versus High Loaded Bench Press Exercise Performed to Muscular Failure." Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology, vol. 56, 2021, p. 102513.
Krzysztofik M, Jarosz J, Matykiewicz P, et al. A comparison of muscle activity of the dominant and non-dominant side of the body during low versus high loaded bench press exercise performed to muscular failure. J Electromyogr Kinesiol. 2021;56:102513.
Krzysztofik, M., Jarosz, J., Matykiewicz, P., Wilk, M., Bialas, M., Zajac, A., & Golas, A. (2021). A comparison of muscle activity of the dominant and non-dominant side of the body during low versus high loaded bench press exercise performed to muscular failure. Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology, 56, 102513. https://doi.org/10.1016/j.jelekin.2020.102513
Krzysztofik M, et al. A Comparison of Muscle Activity of the Dominant and Non-dominant Side of the Body During Low Versus High Loaded Bench Press Exercise Performed to Muscular Failure. J Electromyogr Kinesiol. 2021;56:102513. PubMed PMID: 33422743.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A comparison of muscle activity of the dominant and non-dominant side of the body during low versus high loaded bench press exercise performed to muscular failure. AU - Krzysztofik,Michal, AU - Jarosz,Jakub, AU - Matykiewicz,Patryk, AU - Wilk,Michal, AU - Bialas,Marcin, AU - Zajac,Adam, AU - Golas,Artur, Y1 - 2021/01/04/ PY - 2020/08/06/received PY - 2020/12/04/revised PY - 2020/12/30/accepted PY - 2021/1/11/pubmed PY - 2021/4/21/medline PY - 2021/1/10/entrez KW - EMG KW - Electromyography KW - External load KW - Resistance exercise KW - Resistance training KW - Symmetry SP - 102513 EP - 102513 JF - Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology JO - J Electromyogr Kinesiol VL - 56 N2 - The main aim of the study was to compare the peak surface electromyography (sEMG) amplitude of muscles during low and high loaded bench press exercises performed to muscular failure on the dominant and non-dominant body side. Ten resistance-trained healthy males with at least six-year experience in resistance training (27.7 ± 5.6 years, 81.1 ± 5.8 kg and 175.3 ± 5.2 cm, bench press one-repetition maximum [1RM] = 98.9 ± 7.1 kg) performed the bench press at 50% and at 90%1RM. The differences in peak sEMG amplitude between body-sides and the external loads were recorded for the pectoralis major (PM), anterior deltoid (AD), and the long head of the triceps brachii (TB) during each attempt. A two-way repeated-measures ANOVAs revealed statistically significant main effect of side for AD (p < 0.001) and TB (p < 0.001) but not for PM (p = 0.168) and a significant main effect of load for TB (p < 0.001) but not for AD and PM (p = 0.229; p = 0.072; respectively). The post-hoc analysis for the main effect of side showed significantly higher peak sEMG amplitude for the dominant side compared to the non-dominant side for AD and TB at 50%1RM and 90%1RM (p < 0.001; all) with no statistically significant differences for PM (p = 0.187; p = 0.155; both loads). The post-hoc analysis for the main effect of load for TB revealed a significantly higher peak sEMG amplitude at 90%1RM compared to the 50%1RM (p = 0.009). The obtained results indicate that regardless of the external load, the peak sEMG activity of the AD, PM, and TB during the bench press exercise performed to muscular failure was higher on the dominant body-side. SN - 1873-5711 UR - https://www.unboundmedicine.com/medline/citation/33422743/A_comparison_of_muscle_activity_of_the_dominant_and_non_dominant_side_of_the_body_during_low_versus_high_loaded_bench_press_exercise_performed_to_muscular_failure_ DB - PRIME DP - Unbound Medicine ER -