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Strength gain through eccentric isotonic training without changes in clinical signs or blood markers

BACKGROUND: Localized exercises are widely used in rehabilitation processes. The predominant options are exercises with an emphasis on either concentric or eccentric contractions. Eccentric exercises promote greater strength gains compared to classical concentric stimuli, but can cause muscle damage...

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Autores principales: Alves, Thâmara, Guarnier, Flávia A, Campoy, Fernanda AS, Gois, Mariana O, Albuquerque, Maíra C, Seraphim, Patrícia M, Netto, Jayme Junior, Vanderlei, Luiz Carlos Marques, Padovani, Carlos R, Cecchini, Rubens, Pastre, Carlos Marcelo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3840568/
https://www.ncbi.nlm.nih.gov/pubmed/24261331
http://dx.doi.org/10.1186/1471-2474-14-328
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author Alves, Thâmara
Guarnier, Flávia A
Campoy, Fernanda AS
Gois, Mariana O
Albuquerque, Maíra C
Seraphim, Patrícia M
Netto, Jayme Junior
Vanderlei, Luiz Carlos Marques
Padovani, Carlos R
Cecchini, Rubens
Pastre, Carlos Marcelo
author_facet Alves, Thâmara
Guarnier, Flávia A
Campoy, Fernanda AS
Gois, Mariana O
Albuquerque, Maíra C
Seraphim, Patrícia M
Netto, Jayme Junior
Vanderlei, Luiz Carlos Marques
Padovani, Carlos R
Cecchini, Rubens
Pastre, Carlos Marcelo
author_sort Alves, Thâmara
collection PubMed
description BACKGROUND: Localized exercises are widely used in rehabilitation processes. The predominant options are exercises with an emphasis on either concentric or eccentric contractions. Eccentric exercises promote greater strength gains compared to classical concentric stimuli, but can cause muscle damage. The aim of present study was to compare strength training composed of 10 sessions with progressive loads between groups with a predominance of concentric versus eccentric contraction through an analysis of isotonic strength, pressure pain threshold, creatine kinase, tumor necrosis factor-alpha and cortisol. METHODS: One hundred twenty male subjects were divided into four groups: C1 and E1 – single session of maximum strength with emphasis on concentric and eccentric contraction, respectively; C10 and E10 – 10 sessions with progressive loads from 80% to maximum strength with emphasis on concentric and eccentric contraction, respectively. RESULTS: Isotonic strength increased by 10% in E10 following the ten training sessions. C1 and E1 exhibited a lower pressure pain threshold 48 hours after the sessions in comparison to C10 and E10, respectively. Creatine kinase was increased in C1 in comparison to baseline, with significant differences (p ≤ 0.05) in comparison to E1 at 48 and 96 hours as well as C10 at 48, 72 and 96 hours. No significant differences were found in TNF-α or cortisol among the groups or evaluation times. CONCLUSION: Eccentric contraction training promotes functional adaptation. Moreover, both concentric and eccentric contraction training have a protective effect on the muscle in relation to a single session of maximum strength exercise. TRIAL REGISTRATION: RBR-75scwh
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spelling pubmed-38405682013-11-27 Strength gain through eccentric isotonic training without changes in clinical signs or blood markers Alves, Thâmara Guarnier, Flávia A Campoy, Fernanda AS Gois, Mariana O Albuquerque, Maíra C Seraphim, Patrícia M Netto, Jayme Junior Vanderlei, Luiz Carlos Marques Padovani, Carlos R Cecchini, Rubens Pastre, Carlos Marcelo BMC Musculoskelet Disord Research Article BACKGROUND: Localized exercises are widely used in rehabilitation processes. The predominant options are exercises with an emphasis on either concentric or eccentric contractions. Eccentric exercises promote greater strength gains compared to classical concentric stimuli, but can cause muscle damage. The aim of present study was to compare strength training composed of 10 sessions with progressive loads between groups with a predominance of concentric versus eccentric contraction through an analysis of isotonic strength, pressure pain threshold, creatine kinase, tumor necrosis factor-alpha and cortisol. METHODS: One hundred twenty male subjects were divided into four groups: C1 and E1 – single session of maximum strength with emphasis on concentric and eccentric contraction, respectively; C10 and E10 – 10 sessions with progressive loads from 80% to maximum strength with emphasis on concentric and eccentric contraction, respectively. RESULTS: Isotonic strength increased by 10% in E10 following the ten training sessions. C1 and E1 exhibited a lower pressure pain threshold 48 hours after the sessions in comparison to C10 and E10, respectively. Creatine kinase was increased in C1 in comparison to baseline, with significant differences (p ≤ 0.05) in comparison to E1 at 48 and 96 hours as well as C10 at 48, 72 and 96 hours. No significant differences were found in TNF-α or cortisol among the groups or evaluation times. CONCLUSION: Eccentric contraction training promotes functional adaptation. Moreover, both concentric and eccentric contraction training have a protective effect on the muscle in relation to a single session of maximum strength exercise. TRIAL REGISTRATION: RBR-75scwh BioMed Central 2013-11-21 /pmc/articles/PMC3840568/ /pubmed/24261331 http://dx.doi.org/10.1186/1471-2474-14-328 Text en Copyright © 2013 Alves et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Alves, Thâmara
Guarnier, Flávia A
Campoy, Fernanda AS
Gois, Mariana O
Albuquerque, Maíra C
Seraphim, Patrícia M
Netto, Jayme Junior
Vanderlei, Luiz Carlos Marques
Padovani, Carlos R
Cecchini, Rubens
Pastre, Carlos Marcelo
Strength gain through eccentric isotonic training without changes in clinical signs or blood markers
title Strength gain through eccentric isotonic training without changes in clinical signs or blood markers
title_full Strength gain through eccentric isotonic training without changes in clinical signs or blood markers
title_fullStr Strength gain through eccentric isotonic training without changes in clinical signs or blood markers
title_full_unstemmed Strength gain through eccentric isotonic training without changes in clinical signs or blood markers
title_short Strength gain through eccentric isotonic training without changes in clinical signs or blood markers
title_sort strength gain through eccentric isotonic training without changes in clinical signs or blood markers
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3840568/
https://www.ncbi.nlm.nih.gov/pubmed/24261331
http://dx.doi.org/10.1186/1471-2474-14-328
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