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Comment published on 23 December 2020, see Int. J. Environ. Res. Public Health 2021, 18(1), 41.
Article

Changes in Muscle Pattern Activity during the Asymmetric Flat Bench Press (Offset Training)

Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, ul. Mikolowska 72a, 40-065 Katowice, Poland
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Int. J. Environ. Res. Public Health 2020, 17(11), 3912; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17113912
Received: 21 April 2020 / Revised: 28 May 2020 / Accepted: 29 May 2020 / Published: 1 June 2020
Background: This study aimed to compare the muscle activity between the symmetric and selected asymmetric loads (2.5%; 5% and 7.5% differences in load position between sides of the bar) during the flat bench press (BP) exercise at 70%1RM. The study included 10 resistance-trained males (25.3 ± 2.3 years; 82.9 ± 6.9 kg; 177.8 ± 4.5 cm; 1RM BP: 104.5 ± 8.6 kg; experience: 5.6 ± 1.5 years). Methods: To assess the differences in muscle activity between both sides of the body and load placement, the participants performed several attempts of the BP with symmetric and asymmetric load at 70%1RM in a random order (symmetric; 2.5%; 5% and 7.5% differences in load position between sides of the bar). Peak muscle activity of dominant and non-dominant body-side was recorded for the pectoralis major (PM), anterior deltoid (AD), and the long head of the triceps brachii (TB). Results: A two-way repeated-measures analysis of variance (ANOVA) indicated a statistically significant main interaction between side and load (p < 0.01) for AD, PM and TB muscles. Conclusion: The results of this study showed that asymmetrically loaded BP leads to significantly higher muscle activity on the loaded side of the body. The offset training method during bilateral resistance exercise may be an effective and simple approach for reductions in muscle imbalances and improvement in bilateral exercise performance. View Full-Text
Keywords: bilateral movement; injury and prevention; performance; resistance exercise bilateral movement; injury and prevention; performance; resistance exercise
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MDPI and ACS Style

Jarosz, J.; Gołaś, A.; Krzysztofik, M.; Matykiewicz, P.; Strońska, K.; Zając, A.; Maszczyk, A. Changes in Muscle Pattern Activity during the Asymmetric Flat Bench Press (Offset Training). Int. J. Environ. Res. Public Health 2020, 17, 3912. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17113912

AMA Style

Jarosz J, Gołaś A, Krzysztofik M, Matykiewicz P, Strońska K, Zając A, Maszczyk A. Changes in Muscle Pattern Activity during the Asymmetric Flat Bench Press (Offset Training). International Journal of Environmental Research and Public Health. 2020; 17(11):3912. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17113912

Chicago/Turabian Style

Jarosz, Jakub, Artur Gołaś, Michal Krzysztofik, Patryk Matykiewicz, Katarzyna Strońska, Adam Zając, and Adam Maszczyk. 2020. "Changes in Muscle Pattern Activity during the Asymmetric Flat Bench Press (Offset Training)" International Journal of Environmental Research and Public Health 17, no. 11: 3912. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17113912

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