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http://dx.doi.org/10.5103/KJSB.2013.23.2.141

Effect of Scapulothoracic Joint Movement and Resistance Training Intensity on Shoulder Complex Muscle Activation during Bench Press Exercise  

Kim, Yoon-Hwan (Department of Sports Industry, Graduate School of Sports Industry Kookmin University)
Lee, Ki-Kwang (Department of Physical Education, Kookmin University)
Lee, Man-Ki (Department of Sports and Leisure Studies, Inje University)
Publication Information
Korean Journal of Applied Biomechanics / v.23, no.2, 2013 , pp. 141-148 More about this Journal
Abstract
The purpose of this study was to investigate the scapulothoracic joint movement between different weight bearing contributing to effective bench press exercise. Ten male subjects participated in this study. All subjects were tested on the flat bench press machine which modified weight (50% and 70% of 1RM) and subjects were performed two different conditions(none protraction condition and protraction condition). Weight bar height and vertical velocity, EMG activation was measured using 3D motion capture system and wireless EMG analysis system. As the results, none protraction condition showed that it is more concentrate better pectoralis major muscle activation than protraction condition and middle pectoralis major, anterior deltoid and triceps brachii was significant higher integrated EMG in 70% of 1RM condition. In conclusion, limited scapulothoracic joint movement was more effective activated pectoralis major muscle all the weight through, while we could not find that it was not affected integrated EMG on eight muslces related to shoulder complex between scapulothracic joint movement conditions.
Keywords
Bench press; Shoulder complex; Weight training; Shoulder injury; EMG;
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Times Cited By KSCI : 1  (Citation Analysis)
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