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Influence of bench angle on upper extremity muscular activation during bench press exercise.
Eur J Sport Sci. 2016; 16(3):309-16.EJ

Abstract

This study compared the muscular activation of the pectoralis major, anterior deltoid and triceps brachii during a free-weight barbell bench press performed at 0°, 30°, 45° and -15° bench angles. Fourteen healthy resistance trained males (age 21.4 ± 0.4 years) participated in this study. One set of six repetitions for each bench press conditions at 65% one repetition maximum were performed. Surface electromyography (sEMG) was utilised to examine the muscular activation of the selected muscles during the eccentric and concentric phases. In addition, each phase was subdivided into 25% contraction durations, resulting in four separate time points for comparison between bench conditions. The sEMG of upper pectoralis displayed no difference during any of the bench conditions when examining the complete concentric contraction, however differences during 26-50% contraction duration were found for both the 30° [122.5 ± 10.1% maximal voluntary isometric contraction (MVIC)] and 45° (124 ± 9.1% MVIC) bench condition, resulting in greater sEMG compared to horizontal (98.2 ± 5.4% MVIC) and -15 (96.1 ± 5.5% MVIC). The sEMG of lower pectoralis was greater during -15° (100.4 ± 5.7% MVIC), 30° (86.6 ± 4.8% MVIC) and horizontal (100.1 ± 5.2% MVIC) bench conditions compared to the 45° (71.9 ± 4.5% MVIC) for the whole concentric contraction. The results of this study support the use of a horizontal bench to achieve muscular activation of both the upper and lower heads of the pectoralis. However, a bench incline angle of 30° or 45° resulted in greater muscular activation during certain time points, suggesting that it is important to consider how muscular activation is affected at various time points when selecting bench press exercises.

Authors+Show Affiliations

a Department of Kinesiology, Cardiopulmonary and Metabolic Research Laboratory , University of Toledo , Toledo , OH , USA.a Department of Kinesiology, Cardiopulmonary and Metabolic Research Laboratory , University of Toledo , Toledo , OH , USA.a Department of Kinesiology, Cardiopulmonary and Metabolic Research Laboratory , University of Toledo , Toledo , OH , USA.

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

25799093

Citation

Lauver, Jakob D., et al. "Influence of Bench Angle On Upper Extremity Muscular Activation During Bench Press Exercise." European Journal of Sport Science, vol. 16, no. 3, 2016, pp. 309-16.
Lauver JD, Cayot TE, Scheuermann BW. Influence of bench angle on upper extremity muscular activation during bench press exercise. Eur J Sport Sci. 2016;16(3):309-16.
Lauver, J. D., Cayot, T. E., & Scheuermann, B. W. (2016). Influence of bench angle on upper extremity muscular activation during bench press exercise. European Journal of Sport Science, 16(3), 309-16. https://doi.org/10.1080/17461391.2015.1022605
Lauver JD, Cayot TE, Scheuermann BW. Influence of Bench Angle On Upper Extremity Muscular Activation During Bench Press Exercise. Eur J Sport Sci. 2016;16(3):309-16. PubMed PMID: 25799093.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of bench angle on upper extremity muscular activation during bench press exercise. AU - Lauver,Jakob D, AU - Cayot,Trent E, AU - Scheuermann,Barry W, Y1 - 2015/03/23/ PY - 2015/3/24/entrez PY - 2015/3/24/pubmed PY - 2016/12/15/medline KW - Resistance training KW - electromyography KW - muscular activation SP - 309 EP - 16 JF - European journal of sport science JO - Eur J Sport Sci VL - 16 IS - 3 N2 - This study compared the muscular activation of the pectoralis major, anterior deltoid and triceps brachii during a free-weight barbell bench press performed at 0°, 30°, 45° and -15° bench angles. Fourteen healthy resistance trained males (age 21.4 ± 0.4 years) participated in this study. One set of six repetitions for each bench press conditions at 65% one repetition maximum were performed. Surface electromyography (sEMG) was utilised to examine the muscular activation of the selected muscles during the eccentric and concentric phases. In addition, each phase was subdivided into 25% contraction durations, resulting in four separate time points for comparison between bench conditions. The sEMG of upper pectoralis displayed no difference during any of the bench conditions when examining the complete concentric contraction, however differences during 26-50% contraction duration were found for both the 30° [122.5 ± 10.1% maximal voluntary isometric contraction (MVIC)] and 45° (124 ± 9.1% MVIC) bench condition, resulting in greater sEMG compared to horizontal (98.2 ± 5.4% MVIC) and -15 (96.1 ± 5.5% MVIC). The sEMG of lower pectoralis was greater during -15° (100.4 ± 5.7% MVIC), 30° (86.6 ± 4.8% MVIC) and horizontal (100.1 ± 5.2% MVIC) bench conditions compared to the 45° (71.9 ± 4.5% MVIC) for the whole concentric contraction. The results of this study support the use of a horizontal bench to achieve muscular activation of both the upper and lower heads of the pectoralis. However, a bench incline angle of 30° or 45° resulted in greater muscular activation during certain time points, suggesting that it is important to consider how muscular activation is affected at various time points when selecting bench press exercises. SN - 1536-7290 UR - https://www.unboundmedicine.com/medline/citation/25799093/Influence_of_bench_angle_on_upper_extremity_muscular_activation_during_bench_press_exercise_ DB - PRIME DP - Unbound Medicine ER -