An analysis of frequency response of motor units during voluntary isometric contractions at various speeds
To ascertain the differences in discharge properties of a hand muscle between ramp and ballistic contractions, firing frequencies of 48 motor units of adductor pollicis muscle were analyzed during 3-kg isometric voluntary contractions at various force speeds. The force exertions were classified into...
Gespeichert in:
| Veröffentlicht in: | Brain research 1988-08, Vol.458 (2), p.261-268 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 268 |
|---|---|
| container_issue | 2 |
| container_start_page | 261 |
| container_title | Brain research |
| container_volume | 458 |
| creator | Oishi, Kazuo Yoneda, Tsugutake Ishida, Ayako |
| description | To ascertain the differences in discharge properties of a hand muscle between ramp and ballistic contractions, firing frequencies of 48 motor units of adductor pollicis muscle were analyzed during 3-kg isometric voluntary contractions at various force speeds. The force exertions were classified into 3 degrees: slow ramp, fast ramp, and ballistic contractions. The instantaneous frequencies (IFs) of motor units increased gradually when the force exertions were progressed to the target in slow and fast ramp contractions. The slopes of the linear regression equations between IFs and force levels were almost all constant during slow ramp contractions and were scattered slightly during fast ramp contractions. However, the slopes during ballistic contractions scattered widely. The
y-intercepts of the same regression lines increased slightly with respect to the increment of force speed when slow and fast ramp contractions were performed. However, a remarkably wide variation of the
y-intercepts was observed during ballistic contractions. Motor units could be fired at high frequencies at the beginning of discharge when ballistic contraction were performed as compared with slow and fast ramp contractions. |
| doi_str_mv | 10.1016/0006-8993(88)90468-4 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_78607761</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>0006899388904684</els_id><sourcerecordid>78607761</sourcerecordid><originalsourceid>FETCH-LOGICAL-c386t-a74961accb206ac63b73591d4aa89eb6b1e3d0950947099fd40e9a8be760ef753</originalsourceid><addsrcrecordid>eNp9kE2LFDEQhoMo6-zqP1DIQWQ9tFamM_m4LCyLX7DgRc8hna6WLD3JmEoPzL834wxz9BQq9bxF1cPYGwEfBQj1CQBUZ6ztb435YEEq08lnbCWMXndqLeE5W12Ql-ya6KmVfW_hil31azAC9Io93Sfuk58PFInniU8F_yyYwoEXpF1OhMffba658CXFSnxcSky_-T7PS6q-HHikvMVaYuAhp1p8qLHluK9870vMC3HaIY70ir2Y_Ez4-vzesF9fPv98-NY9_vj6_eH-sQu9UbXzWlolfAjDGpQPqh90v7FilN4bi4MaBPYj2A1YqcHaaZSA1psBtQKc9Ka_Ye9Pc3clt1uoum2kgPPsE7ZtnDYKtFaigfIEhpKJCk5uV-K2neQEuKNid_Tnjv6cMe6fYidb7O15_jJscbyEzk5b_9257yn4eSo-hUgXTAuQYFTD7k4YNhf7iMVRiM08jrFgqG7M8f97_AXlWZnM</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>78607761</pqid></control><display><type>article</type><title>An analysis of frequency response of motor units during voluntary isometric contractions at various speeds</title><source>MEDLINE</source><source>ScienceDirect Journals (5 years ago - present)</source><creator>Oishi, Kazuo ; Yoneda, Tsugutake ; Ishida, Ayako</creator><creatorcontrib>Oishi, Kazuo ; Yoneda, Tsugutake ; Ishida, Ayako</creatorcontrib><description>To ascertain the differences in discharge properties of a hand muscle between ramp and ballistic contractions, firing frequencies of 48 motor units of adductor pollicis muscle were analyzed during 3-kg isometric voluntary contractions at various force speeds. The force exertions were classified into 3 degrees: slow ramp, fast ramp, and ballistic contractions. The instantaneous frequencies (IFs) of motor units increased gradually when the force exertions were progressed to the target in slow and fast ramp contractions. The slopes of the linear regression equations between IFs and force levels were almost all constant during slow ramp contractions and were scattered slightly during fast ramp contractions. However, the slopes during ballistic contractions scattered widely. The
y-intercepts of the same regression lines increased slightly with respect to the increment of force speed when slow and fast ramp contractions were performed. However, a remarkably wide variation of the
y-intercepts was observed during ballistic contractions. Motor units could be fired at high frequencies at the beginning of discharge when ballistic contraction were performed as compared with slow and fast ramp contractions.</description><identifier>ISSN: 0006-8993</identifier><identifier>EISSN: 1872-6240</identifier><identifier>DOI: 10.1016/0006-8993(88)90468-4</identifier><identifier>PMID: 3208107</identifier><identifier>CODEN: BRREAP</identifier><language>eng</language><publisher>London: Elsevier B.V</publisher><subject>Adult ; Biological and medical sciences ; Fundamental and applied biological sciences. Psychology ; Hand muscle unit ; Humans ; Isometric Contraction ; Male ; Motor control and motor pathways. Reflexes. Control centers of vegetative functions. Vestibular system and equilibration ; Motor Neurons - physiology ; Motor unit recruitment ; Muscle Contraction ; Muscles - innervation ; Reference Values ; Regression Analysis ; Time Factors ; Vertebrates: nervous system and sense organs ; Voluntary contraction</subject><ispartof>Brain research, 1988-08, Vol.458 (2), p.261-268</ispartof><rights>1988 Elsevier Science Publishers B.V. (Biomedical Division)</rights><rights>1989 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-a74961accb206ac63b73591d4aa89eb6b1e3d0950947099fd40e9a8be760ef753</citedby><cites>FETCH-LOGICAL-c386t-a74961accb206ac63b73591d4aa89eb6b1e3d0950947099fd40e9a8be760ef753</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0006-8993(88)90468-4$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7104086$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/3208107$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Oishi, Kazuo</creatorcontrib><creatorcontrib>Yoneda, Tsugutake</creatorcontrib><creatorcontrib>Ishida, Ayako</creatorcontrib><title>An analysis of frequency response of motor units during voluntary isometric contractions at various speeds</title><title>Brain research</title><addtitle>Brain Res</addtitle><description>To ascertain the differences in discharge properties of a hand muscle between ramp and ballistic contractions, firing frequencies of 48 motor units of adductor pollicis muscle were analyzed during 3-kg isometric voluntary contractions at various force speeds. The force exertions were classified into 3 degrees: slow ramp, fast ramp, and ballistic contractions. The instantaneous frequencies (IFs) of motor units increased gradually when the force exertions were progressed to the target in slow and fast ramp contractions. The slopes of the linear regression equations between IFs and force levels were almost all constant during slow ramp contractions and were scattered slightly during fast ramp contractions. However, the slopes during ballistic contractions scattered widely. The
y-intercepts of the same regression lines increased slightly with respect to the increment of force speed when slow and fast ramp contractions were performed. However, a remarkably wide variation of the
y-intercepts was observed during ballistic contractions. Motor units could be fired at high frequencies at the beginning of discharge when ballistic contraction were performed as compared with slow and fast ramp contractions.</description><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hand muscle unit</subject><subject>Humans</subject><subject>Isometric Contraction</subject><subject>Male</subject><subject>Motor control and motor pathways. Reflexes. Control centers of vegetative functions. Vestibular system and equilibration</subject><subject>Motor Neurons - physiology</subject><subject>Motor unit recruitment</subject><subject>Muscle Contraction</subject><subject>Muscles - innervation</subject><subject>Reference Values</subject><subject>Regression Analysis</subject><subject>Time Factors</subject><subject>Vertebrates: nervous system and sense organs</subject><subject>Voluntary contraction</subject><issn>0006-8993</issn><issn>1872-6240</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1988</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE2LFDEQhoMo6-zqP1DIQWQ9tFamM_m4LCyLX7DgRc8hna6WLD3JmEoPzL834wxz9BQq9bxF1cPYGwEfBQj1CQBUZ6ztb435YEEq08lnbCWMXndqLeE5W12Ql-ya6KmVfW_hil31azAC9Io93Sfuk58PFInniU8F_yyYwoEXpF1OhMffba658CXFSnxcSky_-T7PS6q-HHikvMVaYuAhp1p8qLHluK9870vMC3HaIY70ir2Y_Ez4-vzesF9fPv98-NY9_vj6_eH-sQu9UbXzWlolfAjDGpQPqh90v7FilN4bi4MaBPYj2A1YqcHaaZSA1psBtQKc9Ka_Ye9Pc3clt1uoum2kgPPsE7ZtnDYKtFaigfIEhpKJCk5uV-K2neQEuKNid_Tnjv6cMe6fYidb7O15_jJscbyEzk5b_9257yn4eSo-hUgXTAuQYFTD7k4YNhf7iMVRiM08jrFgqG7M8f97_AXlWZnM</recordid><startdate>19880823</startdate><enddate>19880823</enddate><creator>Oishi, Kazuo</creator><creator>Yoneda, Tsugutake</creator><creator>Ishida, Ayako</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><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>7X8</scope></search><sort><creationdate>19880823</creationdate><title>An analysis of frequency response of motor units during voluntary isometric contractions at various speeds</title><author>Oishi, Kazuo ; Yoneda, Tsugutake ; Ishida, Ayako</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c386t-a74961accb206ac63b73591d4aa89eb6b1e3d0950947099fd40e9a8be760ef753</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1988</creationdate><topic>Adult</topic><topic>Biological and medical sciences</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Hand muscle unit</topic><topic>Humans</topic><topic>Isometric Contraction</topic><topic>Male</topic><topic>Motor control and motor pathways. Reflexes. Control centers of vegetative functions. Vestibular system and equilibration</topic><topic>Motor Neurons - physiology</topic><topic>Motor unit recruitment</topic><topic>Muscle Contraction</topic><topic>Muscles - innervation</topic><topic>Reference Values</topic><topic>Regression Analysis</topic><topic>Time Factors</topic><topic>Vertebrates: nervous system and sense organs</topic><topic>Voluntary contraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Oishi, Kazuo</creatorcontrib><creatorcontrib>Yoneda, Tsugutake</creatorcontrib><creatorcontrib>Ishida, Ayako</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Brain research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Oishi, Kazuo</au><au>Yoneda, Tsugutake</au><au>Ishida, Ayako</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An analysis of frequency response of motor units during voluntary isometric contractions at various speeds</atitle><jtitle>Brain research</jtitle><addtitle>Brain Res</addtitle><date>1988-08-23</date><risdate>1988</risdate><volume>458</volume><issue>2</issue><spage>261</spage><epage>268</epage><pages>261-268</pages><issn>0006-8993</issn><eissn>1872-6240</eissn><coden>BRREAP</coden><abstract>To ascertain the differences in discharge properties of a hand muscle between ramp and ballistic contractions, firing frequencies of 48 motor units of adductor pollicis muscle were analyzed during 3-kg isometric voluntary contractions at various force speeds. The force exertions were classified into 3 degrees: slow ramp, fast ramp, and ballistic contractions. The instantaneous frequencies (IFs) of motor units increased gradually when the force exertions were progressed to the target in slow and fast ramp contractions. The slopes of the linear regression equations between IFs and force levels were almost all constant during slow ramp contractions and were scattered slightly during fast ramp contractions. However, the slopes during ballistic contractions scattered widely. The
y-intercepts of the same regression lines increased slightly with respect to the increment of force speed when slow and fast ramp contractions were performed. However, a remarkably wide variation of the
y-intercepts was observed during ballistic contractions. Motor units could be fired at high frequencies at the beginning of discharge when ballistic contraction were performed as compared with slow and fast ramp contractions.</abstract><cop>London</cop><cop>Amsterdam</cop><cop>New York, NY</cop><pub>Elsevier B.V</pub><pmid>3208107</pmid><doi>10.1016/0006-8993(88)90468-4</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0006-8993 |
| ispartof | Brain research, 1988-08, Vol.458 (2), p.261-268 |
| issn | 0006-8993 1872-6240 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_78607761 |
| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Adult Biological and medical sciences Fundamental and applied biological sciences. Psychology Hand muscle unit Humans Isometric Contraction Male Motor control and motor pathways. Reflexes. Control centers of vegetative functions. Vestibular system and equilibration Motor Neurons - physiology Motor unit recruitment Muscle Contraction Muscles - innervation Reference Values Regression Analysis Time Factors Vertebrates: nervous system and sense organs Voluntary contraction |
| title | An analysis of frequency response of motor units during voluntary isometric contractions at various speeds |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T23%3A34%3A11IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=An%20analysis%20of%20frequency%20response%20of%20motor%20units%20during%20voluntary%20isometric%20contractions%20at%20various%20speeds&rft.jtitle=Brain%20research&rft.au=Oishi,%20Kazuo&rft.date=1988-08-23&rft.volume=458&rft.issue=2&rft.spage=261&rft.epage=268&rft.pages=261-268&rft.issn=0006-8993&rft.eissn=1872-6240&rft.coden=BRREAP&rft_id=info:doi/10.1016/0006-8993(88)90468-4&rft_dat=%3Cproquest_cross%3E78607761%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=78607761&rft_id=info:pmid/3208107&rft_els_id=0006899388904684&rfr_iscdi=true |