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Effect of Five Bench Inclinations on the Electromyographic Activity of the Pectoralis Major, Anterior Deltoid, and Triceps Brachii during the Bench Press Exercise.
Int J Environ Res Public Health. 2020 10 08; 17(19)IJ

Abstract

The bench press exercise is one of the most used for training and for evaluating upper-body strength. The aim of the current study was to evaluate the electromyographic (EMG) activity levels of the pectoralis major (PM) in its three portions (upper portion, PMUP, middle portion, PMMP, and lower portion, PMLP), the anterior deltoid (AD), and the triceps brachii (TB) medial head during the bench press exercise at five bench angles (0°, 15°, 30°, 45°, and 60°). Thirty trained adults participated in the study. The EMG activity of the muscles was recorded at the aforementioned inclinations at 60% of one-repetition maximum (1RM). The results showed that the maximal EMG activity for PMUP occurred at a bench inclination of 30°. PMMP and PMLP showed higher EMG activity at a 0° bench inclination. AD had the highest EMG activity at 60°. TB showed similar EMG activities at all bench inclinations. In conclusion, the horizontal bench press produces similar electromyographic activities for the pectoralis major and the anterior deltoid. An inclination of 30° produces greater activation of the upper portion of the pectoralis major. Inclinations greater than 45° produce significantly higher activation of the anterior deltoid and decrease the muscular performance of the pectoralis major.

Authors+Show Affiliations

Health Research Centre, University of Almería, 04120 Almería, Spain.Health Research Centre, University of Almería, 04120 Almería, Spain.Health Research Centre, University of Almería, 04120 Almería, Spain.Health Research Centre, University of Almería, 04120 Almería, Spain. Laboratory of Kinesiology, Biomechanics and Ergonomics (KIBIOMER Lab.), Research Central Services, University of Almería, 04120 Almería, Spain.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

33049982

Citation

Rodríguez-Ridao, David, et al. "Effect of Five Bench Inclinations On the Electromyographic Activity of the Pectoralis Major, Anterior Deltoid, and Triceps Brachii During the Bench Press Exercise." International Journal of Environmental Research and Public Health, vol. 17, no. 19, 2020.
Rodríguez-Ridao D, Antequera-Vique JA, Martín-Fuentes I, et al. Effect of Five Bench Inclinations on the Electromyographic Activity of the Pectoralis Major, Anterior Deltoid, and Triceps Brachii during the Bench Press Exercise. Int J Environ Res Public Health. 2020;17(19).
Rodríguez-Ridao, D., Antequera-Vique, J. A., Martín-Fuentes, I., & Muyor, J. M. (2020). Effect of Five Bench Inclinations on the Electromyographic Activity of the Pectoralis Major, Anterior Deltoid, and Triceps Brachii during the Bench Press Exercise. International Journal of Environmental Research and Public Health, 17(19). https://doi.org/10.3390/ijerph17197339
Rodríguez-Ridao D, et al. Effect of Five Bench Inclinations On the Electromyographic Activity of the Pectoralis Major, Anterior Deltoid, and Triceps Brachii During the Bench Press Exercise. Int J Environ Res Public Health. 2020 10 8;17(19) PubMed PMID: 33049982.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of Five Bench Inclinations on the Electromyographic Activity of the Pectoralis Major, Anterior Deltoid, and Triceps Brachii during the Bench Press Exercise. AU - Rodríguez-Ridao,David, AU - Antequera-Vique,José A, AU - Martín-Fuentes,Isabel, AU - Muyor,José M, Y1 - 2020/10/08/ PY - 2020/09/16/received PY - 2020/10/02/revised PY - 2020/10/05/accepted PY - 2020/10/14/entrez PY - 2020/10/15/pubmed PY - 2021/1/5/medline KW - EMG KW - chest press KW - fitness KW - muscle activity KW - resistance exercise KW - strength JF - International journal of environmental research and public health JO - Int J Environ Res Public Health VL - 17 IS - 19 N2 - The bench press exercise is one of the most used for training and for evaluating upper-body strength. The aim of the current study was to evaluate the electromyographic (EMG) activity levels of the pectoralis major (PM) in its three portions (upper portion, PMUP, middle portion, PMMP, and lower portion, PMLP), the anterior deltoid (AD), and the triceps brachii (TB) medial head during the bench press exercise at five bench angles (0°, 15°, 30°, 45°, and 60°). Thirty trained adults participated in the study. The EMG activity of the muscles was recorded at the aforementioned inclinations at 60% of one-repetition maximum (1RM). The results showed that the maximal EMG activity for PMUP occurred at a bench inclination of 30°. PMMP and PMLP showed higher EMG activity at a 0° bench inclination. AD had the highest EMG activity at 60°. TB showed similar EMG activities at all bench inclinations. In conclusion, the horizontal bench press produces similar electromyographic activities for the pectoralis major and the anterior deltoid. An inclination of 30° produces greater activation of the upper portion of the pectoralis major. Inclinations greater than 45° produce significantly higher activation of the anterior deltoid and decrease the muscular performance of the pectoralis major. SN - 1660-4601 UR - https://www.unboundmedicine.com/medline/citation/33049982/Effect_of_Five_Bench_Inclinations_on_the_Electromyographic_Activity_of_the_Pectoralis_Major_Anterior_Deltoid_and_Triceps_Brachii_during_the_Bench_Press_Exercise_ DB - PRIME DP - Unbound Medicine ER -