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Flexor carpi radialis surface electromyography electrode placement for evoked and voluntary measures
ABSTRACT Introduction: In this study we evaluated the reliability of bipolar electrode recordings, which allow for undistorted compound muscle action potentials (CMAPs) while minimizing cross‐talk during voluntary contractions. Methods: Twenty‐four men completed maximal voluntary wrist flexion contr...
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| Published in: | Muscle & nerve 2015-11, Vol.52 (5), p.818-825 |
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| container_title | Muscle & nerve |
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| creator | Green, Lara A. McGuire, Jessica Gabriel, David A. |
| description | ABSTRACT
Introduction: In this study we evaluated the reliability of bipolar electrode recordings, which allow for undistorted compound muscle action potentials (CMAPs) while minimizing cross‐talk during voluntary contractions. Methods: Twenty‐four men completed maximal voluntary wrist flexion contractions in 4 test sessions. Compound muscle action potentials were also evoked during each session. Surface electromyography was recorded from the flexor carpi radialis (FCR) with the recording electrode (G1) placed on the motor point and a second recording electrode (G2) adjacent to G1. Reliability was assessed using intraclass correlational analysis of variance and standard error of measurement. Results: Root‐mean‐square (RMS) amplitude and mean power frequency (MPF) were highly reliable (R = 0.89 and 0.84, respectively). The CMAPs also exhibited good reliability (R = 0.75). Normalization of RMS amplitude reduced the intraclass reliability coefficient (R = 0.85). Conclusion: The electrode placement resulted in reliable measures from voluntary contractions and CMAPs. Normalization can decrease reliability. Muscle Nerve 52: 818–825, 2015 |
| doi_str_mv | 10.1002/mus.24631 |
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Introduction: In this study we evaluated the reliability of bipolar electrode recordings, which allow for undistorted compound muscle action potentials (CMAPs) while minimizing cross‐talk during voluntary contractions. Methods: Twenty‐four men completed maximal voluntary wrist flexion contractions in 4 test sessions. Compound muscle action potentials were also evoked during each session. Surface electromyography was recorded from the flexor carpi radialis (FCR) with the recording electrode (G1) placed on the motor point and a second recording electrode (G2) adjacent to G1. Reliability was assessed using intraclass correlational analysis of variance and standard error of measurement. Results: Root‐mean‐square (RMS) amplitude and mean power frequency (MPF) were highly reliable (R = 0.89 and 0.84, respectively). The CMAPs also exhibited good reliability (R = 0.75). Normalization of RMS amplitude reduced the intraclass reliability coefficient (R = 0.85). Conclusion: The electrode placement resulted in reliable measures from voluntary contractions and CMAPs. Normalization can decrease reliability. Muscle Nerve 52: 818–825, 2015</description><identifier>ISSN: 0148-639X</identifier><identifier>EISSN: 1097-4598</identifier><identifier>DOI: 10.1002/mus.24631</identifier><identifier>PMID: 25736453</identifier><identifier>CODEN: MUNEDE</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>Action Potentials - physiology ; Adolescent ; Adult ; Electrodes ; Electromyography - instrumentation ; Electromyography - methods ; Evoked Potentials, Motor - physiology ; Forearm - physiology ; Hands ; Humans ; innervation zone ; intraclass reliability ; isometric ; Isometric Contraction - physiology ; Male ; motor point ; Muscle, Skeletal - physiology ; normalization ; Wrist ; Wrist - physiology ; wrist flexion ; Young Adult</subject><ispartof>Muscle & nerve, 2015-11, Vol.52 (5), p.818-825</ispartof><rights>2015 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4611-231e27258f19f1f7baa302660363bb7fdd7a55d2a9f9c624336b21e9fc7f2f373</citedby><cites>FETCH-LOGICAL-c4611-231e27258f19f1f7baa302660363bb7fdd7a55d2a9f9c624336b21e9fc7f2f373</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/25736453$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Green, Lara A.</creatorcontrib><creatorcontrib>McGuire, Jessica</creatorcontrib><creatorcontrib>Gabriel, David A.</creatorcontrib><title>Flexor carpi radialis surface electromyography electrode placement for evoked and voluntary measures</title><title>Muscle & nerve</title><addtitle>Muscle Nerve</addtitle><description>ABSTRACT
Introduction: In this study we evaluated the reliability of bipolar electrode recordings, which allow for undistorted compound muscle action potentials (CMAPs) while minimizing cross‐talk during voluntary contractions. Methods: Twenty‐four men completed maximal voluntary wrist flexion contractions in 4 test sessions. Compound muscle action potentials were also evoked during each session. Surface electromyography was recorded from the flexor carpi radialis (FCR) with the recording electrode (G1) placed on the motor point and a second recording electrode (G2) adjacent to G1. Reliability was assessed using intraclass correlational analysis of variance and standard error of measurement. Results: Root‐mean‐square (RMS) amplitude and mean power frequency (MPF) were highly reliable (R = 0.89 and 0.84, respectively). The CMAPs also exhibited good reliability (R = 0.75). Normalization of RMS amplitude reduced the intraclass reliability coefficient (R = 0.85). Conclusion: The electrode placement resulted in reliable measures from voluntary contractions and CMAPs. Normalization can decrease reliability. Muscle Nerve 52: 818–825, 2015</description><subject>Action Potentials - physiology</subject><subject>Adolescent</subject><subject>Adult</subject><subject>Electrodes</subject><subject>Electromyography - instrumentation</subject><subject>Electromyography - methods</subject><subject>Evoked Potentials, Motor - physiology</subject><subject>Forearm - physiology</subject><subject>Hands</subject><subject>Humans</subject><subject>innervation zone</subject><subject>intraclass reliability</subject><subject>isometric</subject><subject>Isometric Contraction - physiology</subject><subject>Male</subject><subject>motor point</subject><subject>Muscle, Skeletal - physiology</subject><subject>normalization</subject><subject>Wrist</subject><subject>Wrist - physiology</subject><subject>wrist flexion</subject><subject>Young Adult</subject><issn>0148-639X</issn><issn>1097-4598</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp10M1u1DAUBWALgei0sOAFkCU2dJHW_46XqDAdRAsLqGBnOfE1pE3iYCel8_YYptMFEitL1neO7IPQC0pOKCHsdFjyCROK00doRYnRlZCmfoxWhIq6Utx8O0CHOV8TQmit9FN0wKTmSki-Qn7dw11MuHVp6nByvnN9l3FeUnAtYOihnVMctvF7ctOP7f7CA576AgYYZxxKHm7jDXjsRo9vY7-Ms0tbPIArRZCfoSfB9Rme359H6Gr97svZprr4dP7-7M1F1QpFacU4BaaZrAM1gQbdOMcJU4pwxZtGB--1k9IzZ4JpFROcq4ZRMKHVgQWu-RF6veudUvy5QJ7t0OUW-t6NEJdsqWZESCaoKfTVP_Q6LmksryuKGsaNrkVRxzvVpphzgmCn1A3la5YS-2d6W6a3f6cv9uV949IM4B_kfusCTnfgV9fD9v9N9vLq876y2iW6PMPdQ8KlG6s019J-_Xhu17XefLiUG_uW_wZ3Y52U</recordid><startdate>201511</startdate><enddate>201511</enddate><creator>Green, Lara A.</creator><creator>McGuire, Jessica</creator><creator>Gabriel, David A.</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</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>7T5</scope><scope>7TK</scope><scope>7TM</scope><scope>7TS</scope><scope>7U7</scope><scope>7U9</scope><scope>C1K</scope><scope>H94</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>7X8</scope></search><sort><creationdate>201511</creationdate><title>Flexor carpi radialis surface electromyography electrode placement for evoked and voluntary measures</title><author>Green, Lara A. ; McGuire, Jessica ; Gabriel, David A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4611-231e27258f19f1f7baa302660363bb7fdd7a55d2a9f9c624336b21e9fc7f2f373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Action Potentials - physiology</topic><topic>Adolescent</topic><topic>Adult</topic><topic>Electrodes</topic><topic>Electromyography - instrumentation</topic><topic>Electromyography - methods</topic><topic>Evoked Potentials, Motor - physiology</topic><topic>Forearm - physiology</topic><topic>Hands</topic><topic>Humans</topic><topic>innervation zone</topic><topic>intraclass reliability</topic><topic>isometric</topic><topic>Isometric Contraction - physiology</topic><topic>Male</topic><topic>motor point</topic><topic>Muscle, Skeletal - physiology</topic><topic>normalization</topic><topic>Wrist</topic><topic>Wrist - physiology</topic><topic>wrist flexion</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Green, Lara A.</creatorcontrib><creatorcontrib>McGuire, Jessica</creatorcontrib><creatorcontrib>Gabriel, David A.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Immunology Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Physical Education Index</collection><collection>Toxicology Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><collection>MEDLINE - Academic</collection><jtitle>Muscle & nerve</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Green, Lara A.</au><au>McGuire, Jessica</au><au>Gabriel, David A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Flexor carpi radialis surface electromyography electrode placement for evoked and voluntary measures</atitle><jtitle>Muscle & nerve</jtitle><addtitle>Muscle Nerve</addtitle><date>2015-11</date><risdate>2015</risdate><volume>52</volume><issue>5</issue><spage>818</spage><epage>825</epage><pages>818-825</pages><issn>0148-639X</issn><eissn>1097-4598</eissn><coden>MUNEDE</coden><abstract>ABSTRACT
Introduction: In this study we evaluated the reliability of bipolar electrode recordings, which allow for undistorted compound muscle action potentials (CMAPs) while minimizing cross‐talk during voluntary contractions. Methods: Twenty‐four men completed maximal voluntary wrist flexion contractions in 4 test sessions. Compound muscle action potentials were also evoked during each session. Surface electromyography was recorded from the flexor carpi radialis (FCR) with the recording electrode (G1) placed on the motor point and a second recording electrode (G2) adjacent to G1. Reliability was assessed using intraclass correlational analysis of variance and standard error of measurement. Results: Root‐mean‐square (RMS) amplitude and mean power frequency (MPF) were highly reliable (R = 0.89 and 0.84, respectively). The CMAPs also exhibited good reliability (R = 0.75). Normalization of RMS amplitude reduced the intraclass reliability coefficient (R = 0.85). Conclusion: The electrode placement resulted in reliable measures from voluntary contractions and CMAPs. Normalization can decrease reliability. Muscle Nerve 52: 818–825, 2015</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>25736453</pmid><doi>10.1002/mus.24631</doi><tpages>8</tpages></addata></record> |
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| subjects | Action Potentials - physiology Adolescent Adult Electrodes Electromyography - instrumentation Electromyography - methods Evoked Potentials, Motor - physiology Forearm - physiology Hands Humans innervation zone intraclass reliability isometric Isometric Contraction - physiology Male motor point Muscle, Skeletal - physiology normalization Wrist Wrist - physiology wrist flexion Young Adult |
| title | Flexor carpi radialis surface electromyography electrode placement for evoked and voluntary measures |
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