Changes in mechanical properties at the muscle level could be detected by Nakagami imaging during in-vivo fixed-end contractions
In this study, we investigated the capability of the Nakagami transformation to detect changes in vastus lateralis muscle-tendon stiffness (k) during dynamic (and intense) contractions. k was evaluated in eleven healthy males using the gold-standard method (a combination of ultrasound and dynamometr...
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| description | In this study, we investigated the capability of the Nakagami transformation to detect changes in vastus lateralis muscle-tendon stiffness (k) during dynamic (and intense) contractions. k was evaluated in eleven healthy males using the gold-standard method (a combination of ultrasound and dynamometric measurements) during maximal and sub-maximal voluntary fixed-end contractions of the knee extensors (20, 40, 60, 80, and 100% of maximum voluntary force), while Nakagami parameters were analysed using the Nakagami transformation during the same contractions. Muscle-belly behaviour was investigated by means of B-mode ultrasound analysis, while Nakagami parameters were obtained in post-processing using radiofrequency data. k was calculated as the slope of the force-muscle-belly elongation relationship. Three contractions at each intensity were performed to calculate the intra-trial reliability and the coefficient of variation (CV) of the Nakagami parameters. At all contraction intensities, high values of intra-trial reliability (range: 0.92-0.96) and low CV ( |
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Muscle-belly behaviour was investigated by means of B-mode ultrasound analysis, while Nakagami parameters were obtained in post-processing using radiofrequency data. k was calculated as the slope of the force-muscle-belly elongation relationship. Three contractions at each intensity were performed to calculate the intra-trial reliability and the coefficient of variation (CV) of the Nakagami parameters. At all contraction intensities, high values of intra-trial reliability (range: 0.92-0.96) and low CV (<9%) were observed. k and Nakagami parameters increased as a function of contraction intensity, and significant positive correlations were observed between these variables. These data suggest that changes in mechanical properties (e.g., stiffness) at the muscle level could be investigated by means of Nakagami parameters.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0308177</identifier><identifier>PMID: 39269968</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adult ; Analysis ; Biomechanical Phenomena ; Change detection ; Coefficient of variation ; Complications and side effects ; Data analysis ; Diagnosis ; Humans ; Liver cirrhosis ; Male ; Mechanical properties ; Muscle contraction ; Muscle Contraction - physiology ; Muscle, Skeletal - diagnostic imaging ; Muscle, Skeletal - physiology ; Muscles ; Musculoskeletal diseases ; Parameters ; Quadriceps Muscle - diagnostic imaging ; Quadriceps Muscle - physiology ; Radio frequency ; Reliability ; Stiffness ; Strain gauges ; Tendons - diagnostic imaging ; Tendons - physiology ; Ultrasonic imaging ; Ultrasonic testing ; Ultrasonography - methods ; Ultrasound ; Young Adult</subject><ispartof>PloS one, 2024-09, Vol.19 (9), p.e0308177</ispartof><rights>Copyright: © 2024 Monte et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</rights><rights>COPYRIGHT 2024 Public Library of Science</rights><rights>2024 Monte et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2024 Monte et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c450t-9704c6b24ffc9cd9d593c7a6086d924d9f5da2cdaace376cac93897e97eb1fa73</cites><orcidid>0000-0001-6604-2658</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0308177&type=printable$$EPDF$$P50$$Gplos$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0308177$$EHTML$$P50$$Gplos$$Hfree_for_read</linktohtml><link.rule.ids>314,778,782,862,2917,23849,27907,27908,79351,79352</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39269968$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Son, Jongsang</contributor><creatorcontrib>Monte, Andrea</creatorcontrib><creatorcontrib>Tsui, Po-Hsian</creatorcontrib><creatorcontrib>Zamparo, Paola</creatorcontrib><title>Changes in mechanical properties at the muscle level could be detected by Nakagami imaging during in-vivo fixed-end contractions</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>In this study, we investigated the capability of the Nakagami transformation to detect changes in vastus lateralis muscle-tendon stiffness (k) during dynamic (and intense) contractions. k was evaluated in eleven healthy males using the gold-standard method (a combination of ultrasound and dynamometric measurements) during maximal and sub-maximal voluntary fixed-end contractions of the knee extensors (20, 40, 60, 80, and 100% of maximum voluntary force), while Nakagami parameters were analysed using the Nakagami transformation during the same contractions. Muscle-belly behaviour was investigated by means of B-mode ultrasound analysis, while Nakagami parameters were obtained in post-processing using radiofrequency data. k was calculated as the slope of the force-muscle-belly elongation relationship. Three contractions at each intensity were performed to calculate the intra-trial reliability and the coefficient of variation (CV) of the Nakagami parameters. At all contraction intensities, high values of intra-trial reliability (range: 0.92-0.96) and low CV (<9%) were observed. k and Nakagami parameters increased as a function of contraction intensity, and significant positive correlations were observed between these variables. These data suggest that changes in mechanical properties (e.g., stiffness) at the muscle level could be investigated by means of Nakagami parameters.</description><subject>Adult</subject><subject>Analysis</subject><subject>Biomechanical Phenomena</subject><subject>Change detection</subject><subject>Coefficient of variation</subject><subject>Complications and side effects</subject><subject>Data analysis</subject><subject>Diagnosis</subject><subject>Humans</subject><subject>Liver cirrhosis</subject><subject>Male</subject><subject>Mechanical properties</subject><subject>Muscle contraction</subject><subject>Muscle Contraction - physiology</subject><subject>Muscle, Skeletal - diagnostic imaging</subject><subject>Muscle, Skeletal - physiology</subject><subject>Muscles</subject><subject>Musculoskeletal diseases</subject><subject>Parameters</subject><subject>Quadriceps Muscle - diagnostic imaging</subject><subject>Quadriceps Muscle - physiology</subject><subject>Radio frequency</subject><subject>Reliability</subject><subject>Stiffness</subject><subject>Strain gauges</subject><subject>Tendons - 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Academic</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Monte, Andrea</au><au>Tsui, Po-Hsian</au><au>Zamparo, Paola</au><au>Son, Jongsang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Changes in mechanical properties at the muscle level could be detected by Nakagami imaging during in-vivo fixed-end contractions</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2024-09-13</date><risdate>2024</risdate><volume>19</volume><issue>9</issue><spage>e0308177</spage><pages>e0308177-</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>In this study, we investigated the capability of the Nakagami transformation to detect changes in vastus lateralis muscle-tendon stiffness (k) during dynamic (and intense) contractions. k was evaluated in eleven healthy males using the gold-standard method (a combination of ultrasound and dynamometric measurements) during maximal and sub-maximal voluntary fixed-end contractions of the knee extensors (20, 40, 60, 80, and 100% of maximum voluntary force), while Nakagami parameters were analysed using the Nakagami transformation during the same contractions. Muscle-belly behaviour was investigated by means of B-mode ultrasound analysis, while Nakagami parameters were obtained in post-processing using radiofrequency data. k was calculated as the slope of the force-muscle-belly elongation relationship. Three contractions at each intensity were performed to calculate the intra-trial reliability and the coefficient of variation (CV) of the Nakagami parameters. At all contraction intensities, high values of intra-trial reliability (range: 0.92-0.96) and low CV (<9%) were observed. k and Nakagami parameters increased as a function of contraction intensity, and significant positive correlations were observed between these variables. These data suggest that changes in mechanical properties (e.g., stiffness) at the muscle level could be investigated by means of Nakagami parameters.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>39269968</pmid><doi>10.1371/journal.pone.0308177</doi><tpages>e0308177</tpages><orcidid>https://orcid.org/0000-0001-6604-2658</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Adult Analysis Biomechanical Phenomena Change detection Coefficient of variation Complications and side effects Data analysis Diagnosis Humans Liver cirrhosis Male Mechanical properties Muscle contraction Muscle Contraction - physiology Muscle, Skeletal - diagnostic imaging Muscle, Skeletal - physiology Muscles Musculoskeletal diseases Parameters Quadriceps Muscle - diagnostic imaging Quadriceps Muscle - physiology Radio frequency Reliability Stiffness Strain gauges Tendons - diagnostic imaging Tendons - physiology Ultrasonic imaging Ultrasonic testing Ultrasonography - methods Ultrasound Young Adult |
| title | Changes in mechanical properties at the muscle level could be detected by Nakagami imaging during in-vivo fixed-end contractions |
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