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Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes
The aim of this study was to compare skeletal muscle response to elbow flexors eccentric exercise in athletes and non-athletes. A set of eccentric (ECC) exercises was performed in a group of 12 athletes and 12 non-athlete controls. Maximal isometric force, electromyographic (EMG) activity of the bic...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Sciendo
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6724596/ https://www.ncbi.nlm.nih.gov/pubmed/31531145 http://dx.doi.org/10.2478/hukin-2019-0068 |
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author | Kawczyński, Adam |
author_facet | Kawczyński, Adam |
author_sort | Kawczyński, Adam |
collection | PubMed |
description | The aim of this study was to compare skeletal muscle response to elbow flexors eccentric exercise in athletes and non-athletes. A set of eccentric (ECC) exercises was performed in a group of 12 athletes and 12 non-athlete controls. Maximal isometric force, electromyographic (EMG) activity of the biceps brachii and the resting elbow angle were assessed before, immediately, 48 hours, 5 and 10 days after high-intensity ECC exercises. During the set of the ECC exercises each participant performed 25 eccentric contractions of elbow flexors. Each contraction consisted of lowering a dumbbell from the flexed (elbow joint angle: [Image: see text] to the extended elbow (elbow joint angle: [Image: see text] position. The weight of the dumbbell was set at 80% of one-repetition maximum (1RM). The ECC contractions caused a decrease in maximal isometric force in both groups. The variable dropped by 8% in non-athletes and by 24% in athletes. Furthermore, the EMG RMS increased significantly only for non-athletes 10 days after the ECC exercise compared to baseline values. The present study showed different effects of ECC exercise on force and EMG in athletes and non-athletes, indicating a more pronounced force response in athletes and electromyographic response in non-athletes. |
format | Online Article Text |
id | pubmed-6724596 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Sciendo |
record_format | MEDLINE/PubMed |
spelling | pubmed-67245962019-09-17 Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes Kawczyński, Adam J Hum Kinet Strength & Power The aim of this study was to compare skeletal muscle response to elbow flexors eccentric exercise in athletes and non-athletes. A set of eccentric (ECC) exercises was performed in a group of 12 athletes and 12 non-athlete controls. Maximal isometric force, electromyographic (EMG) activity of the biceps brachii and the resting elbow angle were assessed before, immediately, 48 hours, 5 and 10 days after high-intensity ECC exercises. During the set of the ECC exercises each participant performed 25 eccentric contractions of elbow flexors. Each contraction consisted of lowering a dumbbell from the flexed (elbow joint angle: [Image: see text] to the extended elbow (elbow joint angle: [Image: see text] position. The weight of the dumbbell was set at 80% of one-repetition maximum (1RM). The ECC contractions caused a decrease in maximal isometric force in both groups. The variable dropped by 8% in non-athletes and by 24% in athletes. Furthermore, the EMG RMS increased significantly only for non-athletes 10 days after the ECC exercise compared to baseline values. The present study showed different effects of ECC exercise on force and EMG in athletes and non-athletes, indicating a more pronounced force response in athletes and electromyographic response in non-athletes. Sciendo 2019-08-21 /pmc/articles/PMC6724596/ /pubmed/31531145 http://dx.doi.org/10.2478/hukin-2019-0068 Text en © 2019 Adam Kawczyński published by Sciendo http://creativecommons.org/licenses/by-nc-nd/3.0 This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. |
spellingShingle | Strength & Power Kawczyński, Adam Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes |
title | Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes |
title_full | Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes |
title_fullStr | Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes |
title_full_unstemmed | Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes |
title_short | Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes |
title_sort | force and electromyographic responses of the biceps brachii after eccentric exercise in athletes and non-athletes |
topic | Strength & Power |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6724596/ https://www.ncbi.nlm.nih.gov/pubmed/31531145 http://dx.doi.org/10.2478/hukin-2019-0068 |
work_keys_str_mv | AT kawczynskiadam forceandelectromyographicresponsesofthebicepsbrachiiaftereccentricexerciseinathletesandnonathletes |