Cargando…

The Acute Effect of Accentuated Eccentric Overloading upon the Kinematics and Myoelectric Activity in the Eccentric and Concentric Phase of a Traditional Bench Press

The target of this study was to investigate the acute effect of a supramaximal augmented eccentric load on the kinematics and myoelectric activity during the concentric phase of the lift in a traditional bench press. Ten resistance-trained males (age 24 ± 6.4 years, height 1.80 ± 0.07 m, body-mass 8...

Descripción completa

Detalles Bibliográficos
Autores principales: Kristiansen, Eirik Lindset, Larsen, Stian, van den Tillaar, Roland
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8822896/
https://www.ncbi.nlm.nih.gov/pubmed/35050971
http://dx.doi.org/10.3390/sports10010006
_version_ 1784646698250797056
author Kristiansen, Eirik Lindset
Larsen, Stian
van den Tillaar, Roland
author_facet Kristiansen, Eirik Lindset
Larsen, Stian
van den Tillaar, Roland
author_sort Kristiansen, Eirik Lindset
collection PubMed
description The target of this study was to investigate the acute effect of a supramaximal augmented eccentric load on the kinematics and myoelectric activity during the concentric phase of the lift in a traditional bench press. Ten resistance-trained males (age 24 ± 6.4 years, height 1.80 ± 0.07 m, body-mass 87.2 ± 16.9 kg) performed two repetitions at 110/85% of the 1-RM in the dynamic accentuated external resistance (DAER) group and two repetitions at 85/85% of the 1-RM for the control group in a traditional bench press. The barbell kinematics, joint kinematics and myoelectric activity of eight muscles were measured in the eccentric phase and the pre-sticking, sticking and post-sticking regions. The main findings were that the sticking region started at a lower barbell height and that a lower barbell velocity was observed in the sticking region during the second repetition in the DAER condition compared to the control condition. Additionally, the lateral deltoid muscle and clavicle part of the pectoralis were more active during the eccentric loading compared to the control condition for the second repetition. Furthermore, higher myoelectric activity was measured during the second repetition in the sticking region for the eccentric loading condition in both pectoralis muscles, while the sternal parts of the pectoralis and anterior deltoid were more active during the second repetition of the control condition in the post-sticking region. Based on our findings, it can be concluded that the supramaximal loading in the descending phase with 110% of the 1-RM in the bench press does not have an acute and positive effect of enhanced performance in the ascending phase of the lift at 85% of 1-RM. Instead, fatigue occurs when using this eccentric load during a bench press.
format Online
Article
Text
id pubmed-8822896
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-88228962022-02-09 The Acute Effect of Accentuated Eccentric Overloading upon the Kinematics and Myoelectric Activity in the Eccentric and Concentric Phase of a Traditional Bench Press Kristiansen, Eirik Lindset Larsen, Stian van den Tillaar, Roland Sports (Basel) Article The target of this study was to investigate the acute effect of a supramaximal augmented eccentric load on the kinematics and myoelectric activity during the concentric phase of the lift in a traditional bench press. Ten resistance-trained males (age 24 ± 6.4 years, height 1.80 ± 0.07 m, body-mass 87.2 ± 16.9 kg) performed two repetitions at 110/85% of the 1-RM in the dynamic accentuated external resistance (DAER) group and two repetitions at 85/85% of the 1-RM for the control group in a traditional bench press. The barbell kinematics, joint kinematics and myoelectric activity of eight muscles were measured in the eccentric phase and the pre-sticking, sticking and post-sticking regions. The main findings were that the sticking region started at a lower barbell height and that a lower barbell velocity was observed in the sticking region during the second repetition in the DAER condition compared to the control condition. Additionally, the lateral deltoid muscle and clavicle part of the pectoralis were more active during the eccentric loading compared to the control condition for the second repetition. Furthermore, higher myoelectric activity was measured during the second repetition in the sticking region for the eccentric loading condition in both pectoralis muscles, while the sternal parts of the pectoralis and anterior deltoid were more active during the second repetition of the control condition in the post-sticking region. Based on our findings, it can be concluded that the supramaximal loading in the descending phase with 110% of the 1-RM in the bench press does not have an acute and positive effect of enhanced performance in the ascending phase of the lift at 85% of 1-RM. Instead, fatigue occurs when using this eccentric load during a bench press. MDPI 2021-12-29 /pmc/articles/PMC8822896/ /pubmed/35050971 http://dx.doi.org/10.3390/sports10010006 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kristiansen, Eirik Lindset
Larsen, Stian
van den Tillaar, Roland
The Acute Effect of Accentuated Eccentric Overloading upon the Kinematics and Myoelectric Activity in the Eccentric and Concentric Phase of a Traditional Bench Press
title The Acute Effect of Accentuated Eccentric Overloading upon the Kinematics and Myoelectric Activity in the Eccentric and Concentric Phase of a Traditional Bench Press
title_full The Acute Effect of Accentuated Eccentric Overloading upon the Kinematics and Myoelectric Activity in the Eccentric and Concentric Phase of a Traditional Bench Press
title_fullStr The Acute Effect of Accentuated Eccentric Overloading upon the Kinematics and Myoelectric Activity in the Eccentric and Concentric Phase of a Traditional Bench Press
title_full_unstemmed The Acute Effect of Accentuated Eccentric Overloading upon the Kinematics and Myoelectric Activity in the Eccentric and Concentric Phase of a Traditional Bench Press
title_short The Acute Effect of Accentuated Eccentric Overloading upon the Kinematics and Myoelectric Activity in the Eccentric and Concentric Phase of a Traditional Bench Press
title_sort acute effect of accentuated eccentric overloading upon the kinematics and myoelectric activity in the eccentric and concentric phase of a traditional bench press
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8822896/
https://www.ncbi.nlm.nih.gov/pubmed/35050971
http://dx.doi.org/10.3390/sports10010006
work_keys_str_mv AT kristianseneiriklindset theacuteeffectofaccentuatedeccentricoverloadinguponthekinematicsandmyoelectricactivityintheeccentricandconcentricphaseofatraditionalbenchpress
AT larsenstian theacuteeffectofaccentuatedeccentricoverloadinguponthekinematicsandmyoelectricactivityintheeccentricandconcentricphaseofatraditionalbenchpress
AT vandentillaarroland theacuteeffectofaccentuatedeccentricoverloadinguponthekinematicsandmyoelectricactivityintheeccentricandconcentricphaseofatraditionalbenchpress
AT kristianseneiriklindset acuteeffectofaccentuatedeccentricoverloadinguponthekinematicsandmyoelectricactivityintheeccentricandconcentricphaseofatraditionalbenchpress
AT larsenstian acuteeffectofaccentuatedeccentricoverloadinguponthekinematicsandmyoelectricactivityintheeccentricandconcentricphaseofatraditionalbenchpress
AT vandentillaarroland acuteeffectofaccentuatedeccentricoverloadinguponthekinematicsandmyoelectricactivityintheeccentricandconcentricphaseofatraditionalbenchpress