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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

Author

Listed:
  • David Rodríguez-Ridao

    (Health Research Centre, University of Almería, 04120 Almería, Spain)

  • José A. Antequera-Vique

    (Health Research Centre, University of Almería, 04120 Almería, Spain)

  • Isabel Martín-Fuentes

    (Health Research Centre, University of Almería, 04120 Almería, Spain)

  • José M. Muyor

    (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)

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.

Suggested Citation

  • David Rodríguez-Ridao & José A. Antequera-Vique & Isabel Martín-Fuentes & José M. Muyor, 2020. "Effect of Five Bench Inclinations on the Electromyographic Activity of the Pectoralis Major, Anterior Deltoid, and Triceps Brachii during the Bench Press Exercise," IJERPH, MDPI, vol. 17(19), pages 1-11, October.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:19:p:7339-:d:424858
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    Cited by:

    1. Ialuska Guerra & Felipe J. Aidar & Gianpiero Greco & Paulo Francisco de Almeida-Neto & Michele De Candia & Breno Guilherme de Araújo Tinoco Cabral & Luca Poli & Mauro Mazini Filho & Roberto Carvutto &, 2022. "Are sEMG, Velocity and Power Influenced by Athletes’ Fixation in Paralympic Powerlifting?," IJERPH, MDPI, vol. 19(7), pages 1-11, March.
    2. Luan José Lopes Teles & Felipe J. Aidar & Dihogo Gama de Matos & Anderson Carlos Marçal & Paulo Francisco de Almeida-Neto & Eduardo Borba Neves & Osvaldo Costa Moreira & Frederico Ribeiro Neto & Nuno , 2021. "Static and Dynamic Strength Indicators in Paralympic Power-Lifters with and without Spinal Cord Injury," IJERPH, MDPI, vol. 18(11), pages 1-12, May.

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