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Strength Asymmetries Are Muscle-Specific and Metric-Dependent
We investigated if dominance affected upper limbs muscle function, and we calculated the level of agreement in asymmetry direction across various muscle-function metrics of two heterologous muscle groups. We recorded elbow flexors and extensors isometric strength of the dominant and non-dominant lim...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9319678/ https://www.ncbi.nlm.nih.gov/pubmed/35886350 http://dx.doi.org/10.3390/ijerph19148495 |
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author | Boccia, Gennaro D’Emanuele, Samuel Brustio, Paolo Riccardo Beratto, Luca Tarperi, Cantor Casale, Roberto Sciarra, Tommaso Rainoldi, Alberto |
author_facet | Boccia, Gennaro D’Emanuele, Samuel Brustio, Paolo Riccardo Beratto, Luca Tarperi, Cantor Casale, Roberto Sciarra, Tommaso Rainoldi, Alberto |
author_sort | Boccia, Gennaro |
collection | PubMed |
description | We investigated if dominance affected upper limbs muscle function, and we calculated the level of agreement in asymmetry direction across various muscle-function metrics of two heterologous muscle groups. We recorded elbow flexors and extensors isometric strength of the dominant and non-dominant limb of 55 healthy adults. Participants performed a series of explosive contractions of maximal and submaximal amplitudes to record three metrics of muscle performance: maximal voluntary force (MVF), rate of force development (RFDpeak), and RFD-Scaling Factor (RFD-SF). At the population level, the MVF was the only muscle function that showed a difference between the dominant and non-dominant sides, being on average slightly (3–6%) higher on the non-dominant side. At the individual level, the direction agreement among heterologous muscles was poor for all metrics (Kappa values ≤ 0.15). When considering the homologous muscles, the direction agreement was moderate between MVF and RFDpeak (Kappa = 0.37) and low between MVF and RFD-SF (Kappa = 0.01). The asymmetries are muscle-specific and rarely favour the same side across different muscle-performance metrics. At the individual level, no one side is more performative than the other: each limb is favoured depending on muscle group and performance metric. The present findings can be used by practitioners that want to decrease the asymmetry levels as they should prescribe specific exercise training for each muscle. |
format | Online Article Text |
id | pubmed-9319678 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-93196782022-07-27 Strength Asymmetries Are Muscle-Specific and Metric-Dependent Boccia, Gennaro D’Emanuele, Samuel Brustio, Paolo Riccardo Beratto, Luca Tarperi, Cantor Casale, Roberto Sciarra, Tommaso Rainoldi, Alberto Int J Environ Res Public Health Article We investigated if dominance affected upper limbs muscle function, and we calculated the level of agreement in asymmetry direction across various muscle-function metrics of two heterologous muscle groups. We recorded elbow flexors and extensors isometric strength of the dominant and non-dominant limb of 55 healthy adults. Participants performed a series of explosive contractions of maximal and submaximal amplitudes to record three metrics of muscle performance: maximal voluntary force (MVF), rate of force development (RFDpeak), and RFD-Scaling Factor (RFD-SF). At the population level, the MVF was the only muscle function that showed a difference between the dominant and non-dominant sides, being on average slightly (3–6%) higher on the non-dominant side. At the individual level, the direction agreement among heterologous muscles was poor for all metrics (Kappa values ≤ 0.15). When considering the homologous muscles, the direction agreement was moderate between MVF and RFDpeak (Kappa = 0.37) and low between MVF and RFD-SF (Kappa = 0.01). The asymmetries are muscle-specific and rarely favour the same side across different muscle-performance metrics. At the individual level, no one side is more performative than the other: each limb is favoured depending on muscle group and performance metric. The present findings can be used by practitioners that want to decrease the asymmetry levels as they should prescribe specific exercise training for each muscle. MDPI 2022-07-12 /pmc/articles/PMC9319678/ /pubmed/35886350 http://dx.doi.org/10.3390/ijerph19148495 Text en © 2022 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 Boccia, Gennaro D’Emanuele, Samuel Brustio, Paolo Riccardo Beratto, Luca Tarperi, Cantor Casale, Roberto Sciarra, Tommaso Rainoldi, Alberto Strength Asymmetries Are Muscle-Specific and Metric-Dependent |
title | Strength Asymmetries Are Muscle-Specific and Metric-Dependent |
title_full | Strength Asymmetries Are Muscle-Specific and Metric-Dependent |
title_fullStr | Strength Asymmetries Are Muscle-Specific and Metric-Dependent |
title_full_unstemmed | Strength Asymmetries Are Muscle-Specific and Metric-Dependent |
title_short | Strength Asymmetries Are Muscle-Specific and Metric-Dependent |
title_sort | strength asymmetries are muscle-specific and metric-dependent |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9319678/ https://www.ncbi.nlm.nih.gov/pubmed/35886350 http://dx.doi.org/10.3390/ijerph19148495 |
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