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Sports 2018, 6(2), 27;

A New Approach to EMG Analysis of Closed-Circuit Movements Such as the Flat Bench Press

Department of Theory and Practice of Sport, The Jerzy Kukuczka Academy of Physical Education, 40065 Katowice, Poland
Department of Sport Games, Faculty of Physical Education and Sport, Charles University, 16252 Prague, Czech Republic
Department of Kinesiology, California State University, Fullerton, CA 92831, USA
Author to whom correspondence should be addressed.
Received: 16 February 2018 / Revised: 19 March 2018 / Accepted: 27 March 2018 / Published: 28 March 2018
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Background: The bench press (BP) is a complex exercise demanding high neuromuscular activity. Therefore, the main objective of this study was to identify the patterns of muscular activity of the prime movers on both sides of an elite powerlifter. Methods: A World Champion (RAW PR 320 kg) participated in the study (age: 34 years; body mass: 103 kg; body height 1.72 m; one-repetition maximum (1 RM) flat bench press: 220 kg). The subject performed one repetition of the flat bench press with: 70% 1 RM (150 kg) and 90% 1 RM (200 kg) in tempos: 2 s eccentric and 1 s concentric phase; 6 s eccentric and 1 s concentric phase). The activity was recorded for: pectoralis major, anterior deltoid, and triceps brachii (lateral and long head). Results: The total sum of peak muscle activity for the four analyzed muscles during both phases of the BP with the different loads and tempos was significantly different, and greater on the right side of the body. Conclusions: The use of lighter loads activate muscle groups in a different activation level, allowing for a greater muscle control. Lifting submaximal and maximal loads causes an activation of most motor units involved in the movement. Experienced athletes have a stabilized neuromuscular pattern for lifting which has different bilateral activity contribution. View Full-Text
Keywords: electromyography; elite sport; case study; powerlifting; resistance training electromyography; elite sport; case study; powerlifting; resistance training
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Golas, A.; Maszczyk, A.; Stastny, P.; Wilk, M.; Ficek, K.; Lockie, R.G.; Zajac, A. A New Approach to EMG Analysis of Closed-Circuit Movements Such as the Flat Bench Press. Sports 2018, 6, 27.

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