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Effect of angular velocity on active muscle stiffness in vivo
We previously reported that active muscle stiffness could be evaluated in vivo. However, we were not able to investigate active muscle stiffness as more than 250 deg·s−1 due to the limitation of the torque motor of dynamometer. The aim of the present study was to investigate the effect of angular ve...
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Published in: | Journal of biomechanics 2020-10, Vol.111, p.110007-110007, Article 110007 |
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description | We previously reported that active muscle stiffness could be evaluated in vivo. However, we were not able to investigate active muscle stiffness as more than 250 deg·s−1 due to the limitation of the torque motor of dynamometer. The aim of the present study was to investigate the effect of angular velocities (including higher angular velocities of more than 250 deg·s−1) on active muscle stiffness. Eighteen males volunteered for this study. Active muscle stiffness of the medial gastrocnemius muscle was calculated according to changes in the estimated muscle force and fascicle length during fast lengthening at five different angular velocities (100, 200, 300, 500, and 600 deg·s−1). Electromyographic activities of the lateral gastrocnemius muscle (LG) and soleus muscle (SOL) were evaluated over two different phases: before the stretch (mEMGa) and after the stretch (mMEGb). Active muscle stiffness was higher at 300 than at 100 deg·s−1, but decreased as the angular velocity increased from 300 to 600 deg·s−1. There were no differences in mEMGa and mEMGb values among the five angular velocities, whereas mEMGb values were higher than mEMGa for all angular velocities. In conclusion, active muscle stiffness was highest at 300 deg·s−1 and decreased at both slower and faster angular velocities. |
doi_str_mv | 10.1016/j.jbiomech.2020.110007 |
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However, we were not able to investigate active muscle stiffness as more than 250 deg·s−1 due to the limitation of the torque motor of dynamometer. The aim of the present study was to investigate the effect of angular velocities (including higher angular velocities of more than 250 deg·s−1) on active muscle stiffness. Eighteen males volunteered for this study. Active muscle stiffness of the medial gastrocnemius muscle was calculated according to changes in the estimated muscle force and fascicle length during fast lengthening at five different angular velocities (100, 200, 300, 500, and 600 deg·s−1). Electromyographic activities of the lateral gastrocnemius muscle (LG) and soleus muscle (SOL) were evaluated over two different phases: before the stretch (mEMGa) and after the stretch (mMEGb). Active muscle stiffness was higher at 300 than at 100 deg·s−1, but decreased as the angular velocity increased from 300 to 600 deg·s−1. There were no differences in mEMGa and mEMGb values among the five angular velocities, whereas mEMGb values were higher than mEMGa for all angular velocities. In conclusion, active muscle stiffness was highest at 300 deg·s−1 and decreased at both slower and faster angular velocities.</description><identifier>ISSN: 0021-9290</identifier><identifier>EISSN: 1873-2380</identifier><identifier>DOI: 10.1016/j.jbiomech.2020.110007</identifier><identifier>PMID: 32971493</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>Angular velocity ; Ankle ; Ankle Joint ; Electromyography ; Fascicle ; Gastrocnemius muscle ; In vivo methods and tests ; Male ; Mechanical properties ; Medial gastrocnemius muscle ; Muscle, Skeletal ; Muscles ; Range of motion ; Soleus muscle ; Stiffness ; Stretch reflex ; Tendons ; Torque ; Torque motors ; Ultrasonic imaging ; Ultrasonography ; Variance analysis ; Velocity</subject><ispartof>Journal of biomechanics, 2020-10, Vol.111, p.110007-110007, Article 110007</ispartof><rights>2020 Elsevier Ltd</rights><rights>Copyright © 2020 Elsevier Ltd. All rights reserved.</rights><rights>2020. Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c462t-30ed259f75f3cc11e2bfc1cfe3cbb8796b77c702c01b5c57b248882c3285b79c3</citedby><cites>FETCH-LOGICAL-c462t-30ed259f75f3cc11e2bfc1cfe3cbb8796b77c702c01b5c57b248882c3285b79c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32971493$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kubo, Keitaro</creatorcontrib><creatorcontrib>Ikebukuro, Toshihiro</creatorcontrib><creatorcontrib>Yata, Hideaki</creatorcontrib><title>Effect of angular velocity on active muscle stiffness in vivo</title><title>Journal of biomechanics</title><addtitle>J Biomech</addtitle><description>We previously reported that active muscle stiffness could be evaluated in vivo. However, we were not able to investigate active muscle stiffness as more than 250 deg·s−1 due to the limitation of the torque motor of dynamometer. The aim of the present study was to investigate the effect of angular velocities (including higher angular velocities of more than 250 deg·s−1) on active muscle stiffness. Eighteen males volunteered for this study. Active muscle stiffness of the medial gastrocnemius muscle was calculated according to changes in the estimated muscle force and fascicle length during fast lengthening at five different angular velocities (100, 200, 300, 500, and 600 deg·s−1). Electromyographic activities of the lateral gastrocnemius muscle (LG) and soleus muscle (SOL) were evaluated over two different phases: before the stretch (mEMGa) and after the stretch (mMEGb). Active muscle stiffness was higher at 300 than at 100 deg·s−1, but decreased as the angular velocity increased from 300 to 600 deg·s−1. There were no differences in mEMGa and mEMGb values among the five angular velocities, whereas mEMGb values were higher than mEMGa for all angular velocities. In conclusion, active muscle stiffness was highest at 300 deg·s−1 and decreased at both slower and faster angular velocities.</description><subject>Angular velocity</subject><subject>Ankle</subject><subject>Ankle Joint</subject><subject>Electromyography</subject><subject>Fascicle</subject><subject>Gastrocnemius muscle</subject><subject>In vivo methods and tests</subject><subject>Male</subject><subject>Mechanical properties</subject><subject>Medial gastrocnemius muscle</subject><subject>Muscle, Skeletal</subject><subject>Muscles</subject><subject>Range of motion</subject><subject>Soleus muscle</subject><subject>Stiffness</subject><subject>Stretch reflex</subject><subject>Tendons</subject><subject>Torque</subject><subject>Torque motors</subject><subject>Ultrasonic imaging</subject><subject>Ultrasonography</subject><subject>Variance analysis</subject><subject>Velocity</subject><issn>0021-9290</issn><issn>1873-2380</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkE1r3DAQhkVI6W7S_oVFkEsv3ujDlqxDISWkSSCQS3sW1uyolbGtrWQb8u_rzW566CWngeF53xkeQjacbTnj6rrdti7EHuH3VjCxLDljTJ-RNa-1LISs2TlZMyZ4YYRhK3KRc3sgSm0-kpUURvPSyDX5euc9wkijp83wa-qaRGfsIoTxhcaBNjCGGWk_ZeiQ5jF4P2DONAx0DnP8RD74psv4-TQvyc_vdz9uH4qn5_vH229PBZRKjIVkuBOV8bryEoBzFM4DB48SnKu1UU5r0EwA466CSjtR1nUtQIq6ctqAvCRfjr37FP9MmEfbhwzYdc2AccpWlKVSShiuFvTqP7SNUxqW714poRRn9UKpIwUp5pzQ230KfZNeLGf2INi29k2wPQi2R8FLcHOqn1yPu3-xN6MLcHMEcPExB0w2Q8ABcBfSItruYnjvxl9bPo3e</recordid><startdate>20201009</startdate><enddate>20201009</enddate><creator>Kubo, Keitaro</creator><creator>Ikebukuro, Toshihiro</creator><creator>Yata, Hideaki</creator><general>Elsevier Ltd</general><general>Elsevier Limited</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7TB</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>M7P</scope><scope>MBDVC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope></search><sort><creationdate>20201009</creationdate><title>Effect of angular velocity on active muscle stiffness in vivo</title><author>Kubo, Keitaro ; Ikebukuro, Toshihiro ; Yata, Hideaki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c462t-30ed259f75f3cc11e2bfc1cfe3cbb8796b77c702c01b5c57b248882c3285b79c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Angular velocity</topic><topic>Ankle</topic><topic>Ankle Joint</topic><topic>Electromyography</topic><topic>Fascicle</topic><topic>Gastrocnemius muscle</topic><topic>In vivo methods and tests</topic><topic>Male</topic><topic>Mechanical properties</topic><topic>Medial gastrocnemius muscle</topic><topic>Muscle, Skeletal</topic><topic>Muscles</topic><topic>Range of motion</topic><topic>Soleus muscle</topic><topic>Stiffness</topic><topic>Stretch reflex</topic><topic>Tendons</topic><topic>Torque</topic><topic>Torque motors</topic><topic>Ultrasonic imaging</topic><topic>Ultrasonography</topic><topic>Variance analysis</topic><topic>Velocity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kubo, Keitaro</creatorcontrib><creatorcontrib>Ikebukuro, Toshihiro</creatorcontrib><creatorcontrib>Yata, Hideaki</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Physical Education Index</collection><collection>Health & Medical Complete (ProQuest Database)</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>ProQuest_Research Library</collection><collection>ProQuest Biological Science Journals</collection><collection>Research Library (Corporate)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of biomechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kubo, Keitaro</au><au>Ikebukuro, Toshihiro</au><au>Yata, Hideaki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of angular velocity on active muscle stiffness in vivo</atitle><jtitle>Journal of biomechanics</jtitle><addtitle>J Biomech</addtitle><date>2020-10-09</date><risdate>2020</risdate><volume>111</volume><spage>110007</spage><epage>110007</epage><pages>110007-110007</pages><artnum>110007</artnum><issn>0021-9290</issn><eissn>1873-2380</eissn><abstract>We previously reported that active muscle stiffness could be evaluated in vivo. However, we were not able to investigate active muscle stiffness as more than 250 deg·s−1 due to the limitation of the torque motor of dynamometer. The aim of the present study was to investigate the effect of angular velocities (including higher angular velocities of more than 250 deg·s−1) on active muscle stiffness. Eighteen males volunteered for this study. Active muscle stiffness of the medial gastrocnemius muscle was calculated according to changes in the estimated muscle force and fascicle length during fast lengthening at five different angular velocities (100, 200, 300, 500, and 600 deg·s−1). Electromyographic activities of the lateral gastrocnemius muscle (LG) and soleus muscle (SOL) were evaluated over two different phases: before the stretch (mEMGa) and after the stretch (mMEGb). Active muscle stiffness was higher at 300 than at 100 deg·s−1, but decreased as the angular velocity increased from 300 to 600 deg·s−1. There were no differences in mEMGa and mEMGb values among the five angular velocities, whereas mEMGb values were higher than mEMGa for all angular velocities. In conclusion, active muscle stiffness was highest at 300 deg·s−1 and decreased at both slower and faster angular velocities.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><pmid>32971493</pmid><doi>10.1016/j.jbiomech.2020.110007</doi><tpages>1</tpages></addata></record> |
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subjects | Angular velocity Ankle Ankle Joint Electromyography Fascicle Gastrocnemius muscle In vivo methods and tests Male Mechanical properties Medial gastrocnemius muscle Muscle, Skeletal Muscles Range of motion Soleus muscle Stiffness Stretch reflex Tendons Torque Torque motors Ultrasonic imaging Ultrasonography Variance analysis Velocity |
title | Effect of angular velocity on active muscle stiffness in vivo |
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