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The effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players

The aim of the study was to examine the effects of a detraining period (DTP) (i.e., off-season) with an individually prescribed training program, and a retraining period (RTP) (i.e., pre-season) combining soccer and flywheel-based strength training on fat-free mass (FFM) and fat-mass (FM) in 10 elit...

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Autores principales: Suarez-Arrones, Luis, Lara-Lopez, Pilar, Maldonado, Rafael, Torreno, Nacho, De Hoyo, Moises, Nakamura, Fabio Yuzo, Di Salvo, Valter, Mendez-Villanueva, Alberto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6697042/
https://www.ncbi.nlm.nih.gov/pubmed/31423358
http://dx.doi.org/10.7717/peerj.7466
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author Suarez-Arrones, Luis
Lara-Lopez, Pilar
Maldonado, Rafael
Torreno, Nacho
De Hoyo, Moises
Nakamura, Fabio Yuzo
Di Salvo, Valter
Mendez-Villanueva, Alberto
author_facet Suarez-Arrones, Luis
Lara-Lopez, Pilar
Maldonado, Rafael
Torreno, Nacho
De Hoyo, Moises
Nakamura, Fabio Yuzo
Di Salvo, Valter
Mendez-Villanueva, Alberto
author_sort Suarez-Arrones, Luis
collection PubMed
description The aim of the study was to examine the effects of a detraining period (DTP) (i.e., off-season) with an individually prescribed training program, and a retraining period (RTP) (i.e., pre-season) combining soccer and flywheel-based strength training on fat-free mass (FFM) and fat-mass (FM) in 10 elite professional male soccer players. The present study used a controlled repeated-measures research design to investigate the changes in FFM and FM using dual-energy X-ray absorptiometry. Whole body %FM increased (effect size (ES) = 0.87 ± 0.46) and FFM reduced after DTP (ES = −0.30 ± 0.19), returning to values comparable to the end of the previous season after RTP. At regional levels, arms, legs, and trunk %FM increased (ES = from 0.42 to 1.29) while trunk-FFM was reduced (ES = −0.40 ± 0.26) after DTP, returning to the values observed at the end of the previous season after RTP. Legs-FFM did not change after DTP, with a substantial increase after RTP in comparison with pre-season values (ES = 0.34 ± 0.29 and 0.53 ± 0.36 for the right and left leg, respectively). Despite the small sample size of the present study, the findings indicate that elite soccer players can be allowed 2 weeks of rest during a five-week DTP, since the changes in %FM and FFM were relatively small, and FM and FFM returned to the optimal initial values for competition after the proposed RTP during the pre-season.
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spelling pubmed-66970422019-08-16 The effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players Suarez-Arrones, Luis Lara-Lopez, Pilar Maldonado, Rafael Torreno, Nacho De Hoyo, Moises Nakamura, Fabio Yuzo Di Salvo, Valter Mendez-Villanueva, Alberto PeerJ Anatomy and Physiology The aim of the study was to examine the effects of a detraining period (DTP) (i.e., off-season) with an individually prescribed training program, and a retraining period (RTP) (i.e., pre-season) combining soccer and flywheel-based strength training on fat-free mass (FFM) and fat-mass (FM) in 10 elite professional male soccer players. The present study used a controlled repeated-measures research design to investigate the changes in FFM and FM using dual-energy X-ray absorptiometry. Whole body %FM increased (effect size (ES) = 0.87 ± 0.46) and FFM reduced after DTP (ES = −0.30 ± 0.19), returning to values comparable to the end of the previous season after RTP. At regional levels, arms, legs, and trunk %FM increased (ES = from 0.42 to 1.29) while trunk-FFM was reduced (ES = −0.40 ± 0.26) after DTP, returning to the values observed at the end of the previous season after RTP. Legs-FFM did not change after DTP, with a substantial increase after RTP in comparison with pre-season values (ES = 0.34 ± 0.29 and 0.53 ± 0.36 for the right and left leg, respectively). Despite the small sample size of the present study, the findings indicate that elite soccer players can be allowed 2 weeks of rest during a five-week DTP, since the changes in %FM and FFM were relatively small, and FM and FFM returned to the optimal initial values for competition after the proposed RTP during the pre-season. PeerJ Inc. 2019-08-13 /pmc/articles/PMC6697042/ /pubmed/31423358 http://dx.doi.org/10.7717/peerj.7466 Text en ©2019 Suarez-Arrones et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Anatomy and Physiology
Suarez-Arrones, Luis
Lara-Lopez, Pilar
Maldonado, Rafael
Torreno, Nacho
De Hoyo, Moises
Nakamura, Fabio Yuzo
Di Salvo, Valter
Mendez-Villanueva, Alberto
The effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players
title The effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players
title_full The effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players
title_fullStr The effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players
title_full_unstemmed The effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players
title_short The effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players
title_sort effects of detraining and retraining periods on fat-mass and fat-free mass in elite male soccer players
topic Anatomy and Physiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6697042/
https://www.ncbi.nlm.nih.gov/pubmed/31423358
http://dx.doi.org/10.7717/peerj.7466
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