TY  - JOUR
AU  - Lauver, Jakob D.
A2  - Lauver, Jakob D.
A2  - Cayot, Trent E.
A2  - Scheuermann, Barry W.
DB  - BISp
DP  - BISp
KW  - Armmuskulatur
KW  - Brustmuskulatur
KW  - Elektromyographie
KW  - Krafttraining
KW  - M. deltoideus
KW  - M. pectoralis major
KW  - M. triceps brachii
KW  - Muskelaktivität
KW  - Schultermuskulatur
KW  - Trainingseffektivität
KW  - Trainingswirkung
KW  - Trainingswissenschaft
KW  - Untersuchung, empirische
KW  - Übungsgestaltung
KW  - Übungswirkung
LA  - eng
TI  - Influence of bench angle on upper extremity muscular activation during bench press exercise
TT  - Einfluss des Bankwinkels auf die Muskelaktivierung der oberen Extremität beim Bankdrücken
PY  - 2016
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.
L2  - https://dx.doi.org/10.1080/17461391.2015.1022605
DO  - 10.1080/17461391.2015.1022605
SP  - S. 309-316
SN  - 1746-1391
JO  - European journal of sport science
IS  - 3
VL  - 16
M3  - Elektronische Ressource (online)
M3  - Gedruckte Ressource
ID  - PU201605003053
ER  -