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Unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle
BACKGROUND: Self-administered foam rolling (SAFR) is an effective massage technique often used in sport and rehabilitation settings to improve range of motion (ROM) without impairing the strength performance. However, the effects of unilateral SAFR on contralateral non-intervened muscle’s rate of fo...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PeerJ Inc.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6545114/ https://www.ncbi.nlm.nih.gov/pubmed/31179197 http://dx.doi.org/10.7717/peerj.7028 |
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author | Ye, Xin Killen, Benjamin S. Zelizney, Krista L. Miller, William M. Jeon, Sunggun |
author_facet | Ye, Xin Killen, Benjamin S. Zelizney, Krista L. Miller, William M. Jeon, Sunggun |
author_sort | Ye, Xin |
collection | PubMed |
description | BACKGROUND: Self-administered foam rolling (SAFR) is an effective massage technique often used in sport and rehabilitation settings to improve range of motion (ROM) without impairing the strength performance. However, the effects of unilateral SAFR on contralateral non-intervened muscle’s rate of force development (RFD) are unknown. Therefore, the purpose of this investigation was to examine the acute effects of unilateral hamstrings SAFR on the contralateral limb flexibility, the isometric strength, and the RFD parameters. METHODS: Thirty-four subjects (21 women) completed two separate randomly sequenced experimental visits, during which the control (rested for 10 min) or ten, 30-second SAFR were performed with the dominant hamstring muscle group. Before (Pre) and after (Post) the interventions, the contralateral hip flexion passive ROM, the maximal explosive isometric strength of the contralateral knee flexors with the corresponding prime mover muscles’ surface electromyographic (EMG) amplitude were measured. Separate two-way (time ×intervention) repeated measures analyses of variance (ANOVAs) were used to examine the potential changes of the dependent variables. RESULTS: The SAFR significantly improved the contralateral limb ROM (Pre vs. Post: 68.3 ± 21.0 vs. 73.2 ± 23.2 degrees, p < 0.001; d = 0.22). No change was found for the contralateral isometric strength or the maximal EMG amplitude. For the RFD parameters, the percent changes of the RFDs for the first 50, 100, and 200 ms of the maximal explosive isometric contraction were −31.2%, −16.8%, and −10.1%, respectively, following the unilateral SAFR, relative to the control condition. In addition, the decrement of the first 50-ms RFD reached statistical significance (p = 0.007; Cohen’s d = 0.44). CONCLUSION: Ten sets of 30-second unilateral hamstring SAFR improved the ROM of the non-intervened contralateral limb, but decreased its ability to generate force, especially during the early phase (e.g., 50 ms) of the maximal explosive contraction. |
format | Online Article Text |
id | pubmed-6545114 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | PeerJ Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-65451142019-06-09 Unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle Ye, Xin Killen, Benjamin S. Zelizney, Krista L. Miller, William M. Jeon, Sunggun PeerJ Neuroscience BACKGROUND: Self-administered foam rolling (SAFR) is an effective massage technique often used in sport and rehabilitation settings to improve range of motion (ROM) without impairing the strength performance. However, the effects of unilateral SAFR on contralateral non-intervened muscle’s rate of force development (RFD) are unknown. Therefore, the purpose of this investigation was to examine the acute effects of unilateral hamstrings SAFR on the contralateral limb flexibility, the isometric strength, and the RFD parameters. METHODS: Thirty-four subjects (21 women) completed two separate randomly sequenced experimental visits, during which the control (rested for 10 min) or ten, 30-second SAFR were performed with the dominant hamstring muscle group. Before (Pre) and after (Post) the interventions, the contralateral hip flexion passive ROM, the maximal explosive isometric strength of the contralateral knee flexors with the corresponding prime mover muscles’ surface electromyographic (EMG) amplitude were measured. Separate two-way (time ×intervention) repeated measures analyses of variance (ANOVAs) were used to examine the potential changes of the dependent variables. RESULTS: The SAFR significantly improved the contralateral limb ROM (Pre vs. Post: 68.3 ± 21.0 vs. 73.2 ± 23.2 degrees, p < 0.001; d = 0.22). No change was found for the contralateral isometric strength or the maximal EMG amplitude. For the RFD parameters, the percent changes of the RFDs for the first 50, 100, and 200 ms of the maximal explosive isometric contraction were −31.2%, −16.8%, and −10.1%, respectively, following the unilateral SAFR, relative to the control condition. In addition, the decrement of the first 50-ms RFD reached statistical significance (p = 0.007; Cohen’s d = 0.44). CONCLUSION: Ten sets of 30-second unilateral hamstring SAFR improved the ROM of the non-intervened contralateral limb, but decreased its ability to generate force, especially during the early phase (e.g., 50 ms) of the maximal explosive contraction. PeerJ Inc. 2019-05-29 /pmc/articles/PMC6545114/ /pubmed/31179197 http://dx.doi.org/10.7717/peerj.7028 Text en ©2019 Ye 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, 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 | Neuroscience Ye, Xin Killen, Benjamin S. Zelizney, Krista L. Miller, William M. Jeon, Sunggun Unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle |
title | Unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle |
title_full | Unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle |
title_fullStr | Unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle |
title_full_unstemmed | Unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle |
title_short | Unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle |
title_sort | unilateral hamstring foam rolling does not impair strength but the rate of force development of the contralateral muscle |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6545114/ https://www.ncbi.nlm.nih.gov/pubmed/31179197 http://dx.doi.org/10.7717/peerj.7028 |
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