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The Chronic Effects of Low- and High-Intensity Resistance Training on Muscular Fitness in Adolescents
To compare the effects of high-load, low-repetition maximum (LRM) and low-load, high-repetition maximum (HRM) resistance training regimens on muscular fitness in untrained adolescents. Forty-five untrained adolescents of both sexes (13.7±0.8 years; 161.3±7.5 cm, 56.8±13.4 kg) were randomly assigned...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4979886/ https://www.ncbi.nlm.nih.gov/pubmed/27509050 http://dx.doi.org/10.1371/journal.pone.0160650 |
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author | Assunção, Ari R. Bottaro, Martim Ferreira-Junior, João B. Izquierdo, Mikel Cadore, Eduardo L. Gentil, Paulo |
author_facet | Assunção, Ari R. Bottaro, Martim Ferreira-Junior, João B. Izquierdo, Mikel Cadore, Eduardo L. Gentil, Paulo |
author_sort | Assunção, Ari R. |
collection | PubMed |
description | To compare the effects of high-load, low-repetition maximum (LRM) and low-load, high-repetition maximum (HRM) resistance training regimens on muscular fitness in untrained adolescents. Forty-five untrained adolescents of both sexes (13.7±0.8 years; 161.3±7.5 cm, 56.8±13.4 kg) were randomly assigned into one of three groups: 1) LRM (n = 17): volunteers performed three sets of 4-6-repetition maximum (RM); 2) HRM (n = 16): volunteers performed three sets of 12–15 RM; and 3) control (CON, n = 12). Training was performed two times a week for 9 weeks. After training, there were significant increases in 1 RM chest press (LRM = 14.8% and HRM = 14.2%, p<0.05) and squat (LRM = 26.4% and HRM = 25.7%, p<0.05), with no differences between the LRM and HRM groups (p>0.05). Additionally, muscular endurance increased significantly for the chest press (LRM = 14.5% and HRM = 21.8%, p<0.05) and squat test (LRM = 31.4% and HRM = 32.4%, p<0.05) following resistance training, with no difference between the LRM and HRM groups (p>0.05). These results suggest that both high-load, low-repetition and moderate-load, high-repetition resistance training can be prescribed to improve muscular fitness in untrained adolescents. |
format | Online Article Text |
id | pubmed-4979886 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-49798862016-08-25 The Chronic Effects of Low- and High-Intensity Resistance Training on Muscular Fitness in Adolescents Assunção, Ari R. Bottaro, Martim Ferreira-Junior, João B. Izquierdo, Mikel Cadore, Eduardo L. Gentil, Paulo PLoS One Research Article To compare the effects of high-load, low-repetition maximum (LRM) and low-load, high-repetition maximum (HRM) resistance training regimens on muscular fitness in untrained adolescents. Forty-five untrained adolescents of both sexes (13.7±0.8 years; 161.3±7.5 cm, 56.8±13.4 kg) were randomly assigned into one of three groups: 1) LRM (n = 17): volunteers performed three sets of 4-6-repetition maximum (RM); 2) HRM (n = 16): volunteers performed three sets of 12–15 RM; and 3) control (CON, n = 12). Training was performed two times a week for 9 weeks. After training, there were significant increases in 1 RM chest press (LRM = 14.8% and HRM = 14.2%, p<0.05) and squat (LRM = 26.4% and HRM = 25.7%, p<0.05), with no differences between the LRM and HRM groups (p>0.05). Additionally, muscular endurance increased significantly for the chest press (LRM = 14.5% and HRM = 21.8%, p<0.05) and squat test (LRM = 31.4% and HRM = 32.4%, p<0.05) following resistance training, with no difference between the LRM and HRM groups (p>0.05). These results suggest that both high-load, low-repetition and moderate-load, high-repetition resistance training can be prescribed to improve muscular fitness in untrained adolescents. Public Library of Science 2016-08-10 /pmc/articles/PMC4979886/ /pubmed/27509050 http://dx.doi.org/10.1371/journal.pone.0160650 Text en © 2016 Assunção et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Assunção, Ari R. Bottaro, Martim Ferreira-Junior, João B. Izquierdo, Mikel Cadore, Eduardo L. Gentil, Paulo The Chronic Effects of Low- and High-Intensity Resistance Training on Muscular Fitness in Adolescents |
title | The Chronic Effects of Low- and High-Intensity Resistance Training on Muscular Fitness in Adolescents |
title_full | The Chronic Effects of Low- and High-Intensity Resistance Training on Muscular Fitness in Adolescents |
title_fullStr | The Chronic Effects of Low- and High-Intensity Resistance Training on Muscular Fitness in Adolescents |
title_full_unstemmed | The Chronic Effects of Low- and High-Intensity Resistance Training on Muscular Fitness in Adolescents |
title_short | The Chronic Effects of Low- and High-Intensity Resistance Training on Muscular Fitness in Adolescents |
title_sort | chronic effects of low- and high-intensity resistance training on muscular fitness in adolescents |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4979886/ https://www.ncbi.nlm.nih.gov/pubmed/27509050 http://dx.doi.org/10.1371/journal.pone.0160650 |
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