Anti-phase cocontraction practice attenuates in-phase low-frequency oscillations between antagonistic muscles as assessed with phase coherence
Voluntary contraction of skeletal muscles involves common in-phase neural oscillations in low frequencies (around 1–2 Hz) across muscles. The purpose of this study was to determine if anti-phase antagonistic cocontraction practice can attenuate the occurrence of in-phase low-frequency oscillations i...
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| Veröffentlicht in: | Experimental brain research 2020, Vol.238 (1), p.63-72 |
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| creator | Ahmar, Nayef E. Ueda, Jun Shinohara, Minoru |
| description | Voluntary contraction of skeletal muscles involves common in-phase neural oscillations in low frequencies (around 1–2 Hz) across muscles. The purpose of this study was to determine if anti-phase antagonistic cocontraction practice can attenuate the occurrence of in-phase low-frequency oscillations in antagonistic muscle activity. For this purpose, we determined the probability density function of phase coherence in surface electromyogram (EMG) between antagonistic muscles. Healthy young adults were assigned to one of three intervention groups. They performed an isometric transient and steady cocontraction test with elbow flexors and extensors before and after a session of distinct intervention. In the Cocontraction group, subjects practiced alternating anti-phase isometric cocontraction with the flexors and extensors concurrently. In the Contraction group, subjects practiced alternating isometric contraction levels with flexors or extensors independently. Subjects in the Control group did not perform motor practice. The occurrence of in-phase coherence |
| doi_str_mv | 10.1007/s00221-019-05700-1 |
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The purpose of this study was to determine if anti-phase antagonistic cocontraction practice can attenuate the occurrence of in-phase low-frequency oscillations in antagonistic muscle activity. For this purpose, we determined the probability density function of phase coherence in surface electromyogram (EMG) between antagonistic muscles. Healthy young adults were assigned to one of three intervention groups. They performed an isometric transient and steady cocontraction test with elbow flexors and extensors before and after a session of distinct intervention. In the Cocontraction group, subjects practiced alternating anti-phase isometric cocontraction with the flexors and extensors concurrently. In the Contraction group, subjects practiced alternating isometric contraction levels with flexors or extensors independently. Subjects in the Control group did not perform motor practice. The occurrence of in-phase coherence < 3 Hz during the cocontraction test (including transient and steady portions) was determined from the probability density function of phase coherence in rectified EMG between pairs of elbow flexor and extensor muscles. The change in the probability of in-phase coherence after the intervention period was greatest in the Cocontraction group, followed by Contraction group, and then Control group, on average. The Cocontraction group showed significantly greater reductions than the Control group across the cocontraction test portions. The results suggest that a session of anti-phase cocontraction practice can consistently attenuate the occurrence of in-phase low-frequency oscillations between cocontracting antagonistic muscles across steady and non-steady cocontractions in healthy young adults.</description><identifier>ISSN: 0014-4819</identifier><identifier>EISSN: 1432-1106</identifier><identifier>DOI: 10.1007/s00221-019-05700-1</identifier><identifier>PMID: 31781822</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Biomedical and Life Sciences ; Biomedicine ; Distribution (Probability theory) ; Elbow ; Electromyography ; Muscle contraction ; Muscles ; Neurology ; Neurosciences ; Oscillations ; Research Article ; Skeletal muscle ; Young adults</subject><ispartof>Experimental brain research, 2020, Vol.238 (1), p.63-72</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2019</rights><rights>COPYRIGHT 2020 Springer</rights><rights>Experimental Brain Research is a copyright of Springer, (2019). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c458t-7138471c583580fffd2ce62e1a274e102c0755c90f8a5518336640da35586fd53</cites><orcidid>0000-0002-9260-0366</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00221-019-05700-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00221-019-05700-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31781822$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ahmar, Nayef E.</creatorcontrib><creatorcontrib>Ueda, Jun</creatorcontrib><creatorcontrib>Shinohara, Minoru</creatorcontrib><title>Anti-phase cocontraction practice attenuates in-phase low-frequency oscillations between antagonistic muscles as assessed with phase coherence</title><title>Experimental brain research</title><addtitle>Exp Brain Res</addtitle><addtitle>Exp Brain Res</addtitle><description>Voluntary contraction of skeletal muscles involves common in-phase neural oscillations in low frequencies (around 1–2 Hz) across muscles. The purpose of this study was to determine if anti-phase antagonistic cocontraction practice can attenuate the occurrence of in-phase low-frequency oscillations in antagonistic muscle activity. For this purpose, we determined the probability density function of phase coherence in surface electromyogram (EMG) between antagonistic muscles. Healthy young adults were assigned to one of three intervention groups. They performed an isometric transient and steady cocontraction test with elbow flexors and extensors before and after a session of distinct intervention. In the Cocontraction group, subjects practiced alternating anti-phase isometric cocontraction with the flexors and extensors concurrently. In the Contraction group, subjects practiced alternating isometric contraction levels with flexors or extensors independently. Subjects in the Control group did not perform motor practice. The occurrence of in-phase coherence < 3 Hz during the cocontraction test (including transient and steady portions) was determined from the probability density function of phase coherence in rectified EMG between pairs of elbow flexor and extensor muscles. The change in the probability of in-phase coherence after the intervention period was greatest in the Cocontraction group, followed by Contraction group, and then Control group, on average. The Cocontraction group showed significantly greater reductions than the Control group across the cocontraction test portions. The results suggest that a session of anti-phase cocontraction practice can consistently attenuate the occurrence of in-phase low-frequency oscillations between cocontracting antagonistic muscles across steady and non-steady cocontractions in healthy young adults.</description><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Distribution (Probability theory)</subject><subject>Elbow</subject><subject>Electromyography</subject><subject>Muscle contraction</subject><subject>Muscles</subject><subject>Neurology</subject><subject>Neurosciences</subject><subject>Oscillations</subject><subject>Research Article</subject><subject>Skeletal muscle</subject><subject>Young adults</subject><issn>0014-4819</issn><issn>1432-1106</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kl2L1DAUhoMo7jj6B7yQgiB60TUnH23nclj8WFgQ_LgO2fR0mqVNxiRl3D_hbzadmXUdEcmBpO1z3iZvXkKeAz0HSuu3kVLGoKSwKqmsKS3hAVmA4KwEoNVDsqAURCkaWJ2RJzHezI-8po_JGYe6gYaxBfm5dsmW215HLIw33qWgTbLeFdv9wmChU0I36YSxsO6IDn5XdgG_T-jMbeGjscOg57ZYXGPaIbpCu6Q33tmYRYpximbIAnquiLnaYmdTX9z9uceQpfApedTpIeKz47wk396_-3rxsbz69OHyYn1VGiGbVNbAG1GDkQ2XDe26rmUGK4agWS0QKDO0ltKsaNdoKaHhvKoEbTWXsqm6VvIleX3Q3QafDxGTGm00mA_h0E9RMc4oryu5goy-_Au98VNweXeZEmK2uhL31EYPqKzr_GzkLKrWFQBbMcibXZLzf1B5tDjabD52Nr8_aXhz0jBfEP5IGz3FqC6_fD5lX_3B9qiH1Ec_TPtrOQXZATTBxxiwU9tgRx1uFVA1J0sdkqVystQ-WWq24cXRhul6xPZ3y12UMsAPQMyf3AbDvU__kf0Fl1XXQw</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>Ahmar, Nayef E.</creator><creator>Ueda, Jun</creator><creator>Shinohara, Minoru</creator><general>Springer Berlin Heidelberg</general><general>Springer</general><general>Springer Nature B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>0-V</scope><scope>3V.</scope><scope>7QP</scope><scope>7QR</scope><scope>7RV</scope><scope>7TK</scope><scope>7TM</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88G</scope><scope>88J</scope><scope>8AO</scope><scope>8FD</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ALSLI</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>M2M</scope><scope>M2R</scope><scope>NAPCQ</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PSYQQ</scope><scope>Q9U</scope><scope>RC3</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-9260-0366</orcidid></search><sort><creationdate>2020</creationdate><title>Anti-phase cocontraction practice attenuates in-phase low-frequency oscillations between antagonistic muscles as assessed with phase coherence</title><author>Ahmar, Nayef E. ; Ueda, Jun ; Shinohara, Minoru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c458t-7138471c583580fffd2ce62e1a274e102c0755c90f8a5518336640da35586fd53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Distribution (Probability theory)</topic><topic>Elbow</topic><topic>Electromyography</topic><topic>Muscle contraction</topic><topic>Muscles</topic><topic>Neurology</topic><topic>Neurosciences</topic><topic>Oscillations</topic><topic>Research Article</topic><topic>Skeletal muscle</topic><topic>Young adults</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ahmar, Nayef E.</creatorcontrib><creatorcontrib>Ueda, Jun</creatorcontrib><creatorcontrib>Shinohara, Minoru</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>ProQuest Social Sciences Premium Collection【Remote access available】</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>ProQuest Health and Medical</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Psychology Database (Alumni)</collection><collection>Social Science Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Social Science Premium Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</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>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>ProQuest Psychology Journals</collection><collection>ProQuest Social Science Journals</collection><collection>Nursing & Allied Health Premium</collection><collection>Biotechnology and BioEngineering Abstracts</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 One Psychology</collection><collection>ProQuest Central Basic</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Experimental brain research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ahmar, Nayef E.</au><au>Ueda, Jun</au><au>Shinohara, Minoru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anti-phase cocontraction practice attenuates in-phase low-frequency oscillations between antagonistic muscles as assessed with phase coherence</atitle><jtitle>Experimental brain research</jtitle><stitle>Exp Brain Res</stitle><addtitle>Exp Brain Res</addtitle><date>2020</date><risdate>2020</risdate><volume>238</volume><issue>1</issue><spage>63</spage><epage>72</epage><pages>63-72</pages><issn>0014-4819</issn><eissn>1432-1106</eissn><abstract>Voluntary contraction of skeletal muscles involves common in-phase neural oscillations in low frequencies (around 1–2 Hz) across muscles. The purpose of this study was to determine if anti-phase antagonistic cocontraction practice can attenuate the occurrence of in-phase low-frequency oscillations in antagonistic muscle activity. For this purpose, we determined the probability density function of phase coherence in surface electromyogram (EMG) between antagonistic muscles. Healthy young adults were assigned to one of three intervention groups. They performed an isometric transient and steady cocontraction test with elbow flexors and extensors before and after a session of distinct intervention. In the Cocontraction group, subjects practiced alternating anti-phase isometric cocontraction with the flexors and extensors concurrently. In the Contraction group, subjects practiced alternating isometric contraction levels with flexors or extensors independently. Subjects in the Control group did not perform motor practice. The occurrence of in-phase coherence < 3 Hz during the cocontraction test (including transient and steady portions) was determined from the probability density function of phase coherence in rectified EMG between pairs of elbow flexor and extensor muscles. The change in the probability of in-phase coherence after the intervention period was greatest in the Cocontraction group, followed by Contraction group, and then Control group, on average. The Cocontraction group showed significantly greater reductions than the Control group across the cocontraction test portions. The results suggest that a session of anti-phase cocontraction practice can consistently attenuate the occurrence of in-phase low-frequency oscillations between cocontracting antagonistic muscles across steady and non-steady cocontractions in healthy young adults.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>31781822</pmid><doi>10.1007/s00221-019-05700-1</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-9260-0366</orcidid></addata></record> |
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| subjects | Biomedical and Life Sciences Biomedicine Distribution (Probability theory) Elbow Electromyography Muscle contraction Muscles Neurology Neurosciences Oscillations Research Article Skeletal muscle Young adults |
| title | Anti-phase cocontraction practice attenuates in-phase low-frequency oscillations between antagonistic muscles as assessed with phase coherence |
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