Reliability of the log-transformed EMG amplitude-power output relationship for incremental knee-extensor ergometry
ABSTRACT Introduction: The purpose of this investigation was to determine the reproducibility of the log‐transformed model for electromyography (EMG) amplitude during incremental single‐leg knee‐extensor exercise. Methods: Eight healthy college‐aged men performed 3 incremental tests on separate occa...
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| Veröffentlicht in: | Muscle & nerve 2015-09, Vol.52 (3), p.428-434 |
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| creator | Eason, Travis Gavel, Christine R. Hawley, Kyle A. Galen, Sujay S. Malek, Moh H. |
| description | ABSTRACT
Introduction: The purpose of this investigation was to determine the reproducibility of the log‐transformed model for electromyography (EMG) amplitude during incremental single‐leg knee‐extensor exercise. Methods: Eight healthy college‐aged men performed 3 incremental tests on separate occasions on a knee‐extensor ergometer. EMG amplitude was analyzed for each participant on each occasion for the rectus femoris and vastus medialis muscles at 4 different exercise power outputs (30%, 50%, 70%, and 90%) corresponding to each participant's maximal power output. Intraclass correlation coefficients (ICC) were determined for the slope and y‐intercept terms derived from the log‐transformed EMG amplitude‐power output relationship for each muscle. Results: The ICC values for the rectus femoris (slope = 0.779; y‐intercept = 0.787) and vastus medialis (slope = 0.756; y‐intercept = 0.763) muscles were high. Conclusions: The log‐transformed EMG amplitude‐power output relationship is a reliable index for measuring motor unit activation. Muscle Nerve 52:428–434, 2015 |
| doi_str_mv | 10.1002/mus.24561 |
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Introduction: The purpose of this investigation was to determine the reproducibility of the log‐transformed model for electromyography (EMG) amplitude during incremental single‐leg knee‐extensor exercise. Methods: Eight healthy college‐aged men performed 3 incremental tests on separate occasions on a knee‐extensor ergometer. EMG amplitude was analyzed for each participant on each occasion for the rectus femoris and vastus medialis muscles at 4 different exercise power outputs (30%, 50%, 70%, and 90%) corresponding to each participant's maximal power output. Intraclass correlation coefficients (ICC) were determined for the slope and y‐intercept terms derived from the log‐transformed EMG amplitude‐power output relationship for each muscle. Results: The ICC values for the rectus femoris (slope = 0.779; y‐intercept = 0.787) and vastus medialis (slope = 0.756; y‐intercept = 0.763) muscles were high. Conclusions: The log‐transformed EMG amplitude‐power output relationship is a reliable index for measuring motor unit activation. Muscle Nerve 52:428–434, 2015</description><identifier>ISSN: 0148-639X</identifier><identifier>EISSN: 1097-4598</identifier><identifier>DOI: 10.1002/mus.24561</identifier><identifier>PMID: 25557306</identifier><identifier>CODEN: MUNEDE</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>Adult ; Electromyography - methods ; Ergometry - methods ; exercise physiology ; fitness/health ; Humans ; Knee ; Legs ; Male ; muscle ; Muscle Contraction - physiology ; neuromuscular ; Quadriceps Muscle - physiology ; Reproducibility of Results ; Signal Processing, Computer-Assisted ; statistics ; Young Adult</subject><ispartof>Muscle & nerve, 2015-09, Vol.52 (3), p.428-434</ispartof><rights>2014 Wiley Periodicals, Inc.</rights><rights>2015 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3911-8d92cbb1a722b1d2d1590203d083f7b6a3e8af58a962abf0335149fef06a9f403</citedby><cites>FETCH-LOGICAL-c3911-8d92cbb1a722b1d2d1590203d083f7b6a3e8af58a962abf0335149fef06a9f403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fmus.24561$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fmus.24561$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25557306$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Eason, Travis</creatorcontrib><creatorcontrib>Gavel, Christine R.</creatorcontrib><creatorcontrib>Hawley, Kyle A.</creatorcontrib><creatorcontrib>Galen, Sujay S.</creatorcontrib><creatorcontrib>Malek, Moh H.</creatorcontrib><title>Reliability of the log-transformed EMG amplitude-power output relationship for incremental knee-extensor ergometry</title><title>Muscle & nerve</title><addtitle>Muscle Nerve</addtitle><description>ABSTRACT
Introduction: The purpose of this investigation was to determine the reproducibility of the log‐transformed model for electromyography (EMG) amplitude during incremental single‐leg knee‐extensor exercise. Methods: Eight healthy college‐aged men performed 3 incremental tests on separate occasions on a knee‐extensor ergometer. EMG amplitude was analyzed for each participant on each occasion for the rectus femoris and vastus medialis muscles at 4 different exercise power outputs (30%, 50%, 70%, and 90%) corresponding to each participant's maximal power output. Intraclass correlation coefficients (ICC) were determined for the slope and y‐intercept terms derived from the log‐transformed EMG amplitude‐power output relationship for each muscle. Results: The ICC values for the rectus femoris (slope = 0.779; y‐intercept = 0.787) and vastus medialis (slope = 0.756; y‐intercept = 0.763) muscles were high. Conclusions: The log‐transformed EMG amplitude‐power output relationship is a reliable index for measuring motor unit activation. Muscle Nerve 52:428–434, 2015</description><subject>Adult</subject><subject>Electromyography - methods</subject><subject>Ergometry - methods</subject><subject>exercise physiology</subject><subject>fitness/health</subject><subject>Humans</subject><subject>Knee</subject><subject>Legs</subject><subject>Male</subject><subject>muscle</subject><subject>Muscle Contraction - physiology</subject><subject>neuromuscular</subject><subject>Quadriceps Muscle - physiology</subject><subject>Reproducibility of Results</subject><subject>Signal Processing, Computer-Assisted</subject><subject>statistics</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><sourceid>EIF</sourceid><recordid>eNp10U1PFTEUBuDGaOSCLvwDpokbXQz0Y9rOLA3BiwloVIjGTdOZOYVCZzq2ncD99xYusDBx1cV5zpvmPQi9oWSfEsIOxiXts1pI-gytKGlVVYu2eY5WhNZNJXn7awftpnRFCKGNVC_RDhNCKE7kCsXv4J3pnHd5g4PF-RKwDxdVjmZKNsQRBnx0usZmnAtZBqjmcAMRhyXPS8YRvMkuTOnSzbhw7KY-wghTNh5fTwAV3GaYUplAvAgj5Lh5hV5Y4xO8fnj30Pmno7PD4-rk6_rz4ceTquctpVUztKzvOmoUYx0d2EBFSxjhA2m4VZ00HBpjRWNayUxnCeeC1q0FS6RpbU34Hnq_zZ1j-LNAynp0qQfvzQRhSZoqwhVtuLyj7_6hV2GJU_ndvaJMlnqL-rBVfQwpRbB6jm40caMp0XeH0OUQ-v4Qxb59SFy60uGTfGy-gIMtuHEeNv9P0qfnPx4jq-2GSxlunzZMvNZScSX0zy9r_ftMSSnYNy35X7RPorg</recordid><startdate>201509</startdate><enddate>201509</enddate><creator>Eason, Travis</creator><creator>Gavel, Christine R.</creator><creator>Hawley, Kyle A.</creator><creator>Galen, Sujay S.</creator><creator>Malek, Moh H.</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>201509</creationdate><title>Reliability of the log-transformed EMG amplitude-power output relationship for incremental knee-extensor ergometry</title><author>Eason, Travis ; Gavel, Christine R. ; Hawley, Kyle A. ; Galen, Sujay S. ; Malek, Moh H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3911-8d92cbb1a722b1d2d1590203d083f7b6a3e8af58a962abf0335149fef06a9f403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Adult</topic><topic>Electromyography - methods</topic><topic>Ergometry - methods</topic><topic>exercise physiology</topic><topic>fitness/health</topic><topic>Humans</topic><topic>Knee</topic><topic>Legs</topic><topic>Male</topic><topic>muscle</topic><topic>Muscle Contraction - physiology</topic><topic>neuromuscular</topic><topic>Quadriceps Muscle - physiology</topic><topic>Reproducibility of Results</topic><topic>Signal Processing, Computer-Assisted</topic><topic>statistics</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Eason, Travis</creatorcontrib><creatorcontrib>Gavel, Christine R.</creatorcontrib><creatorcontrib>Hawley, Kyle A.</creatorcontrib><creatorcontrib>Galen, Sujay S.</creatorcontrib><creatorcontrib>Malek, Moh H.</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>Eason, Travis</au><au>Gavel, Christine R.</au><au>Hawley, Kyle A.</au><au>Galen, Sujay S.</au><au>Malek, Moh H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reliability of the log-transformed EMG amplitude-power output relationship for incremental knee-extensor ergometry</atitle><jtitle>Muscle & nerve</jtitle><addtitle>Muscle Nerve</addtitle><date>2015-09</date><risdate>2015</risdate><volume>52</volume><issue>3</issue><spage>428</spage><epage>434</epage><pages>428-434</pages><issn>0148-639X</issn><eissn>1097-4598</eissn><coden>MUNEDE</coden><abstract>ABSTRACT
Introduction: The purpose of this investigation was to determine the reproducibility of the log‐transformed model for electromyography (EMG) amplitude during incremental single‐leg knee‐extensor exercise. Methods: Eight healthy college‐aged men performed 3 incremental tests on separate occasions on a knee‐extensor ergometer. EMG amplitude was analyzed for each participant on each occasion for the rectus femoris and vastus medialis muscles at 4 different exercise power outputs (30%, 50%, 70%, and 90%) corresponding to each participant's maximal power output. Intraclass correlation coefficients (ICC) were determined for the slope and y‐intercept terms derived from the log‐transformed EMG amplitude‐power output relationship for each muscle. Results: The ICC values for the rectus femoris (slope = 0.779; y‐intercept = 0.787) and vastus medialis (slope = 0.756; y‐intercept = 0.763) muscles were high. Conclusions: The log‐transformed EMG amplitude‐power output relationship is a reliable index for measuring motor unit activation. Muscle Nerve 52:428–434, 2015</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>25557306</pmid><doi>10.1002/mus.24561</doi><tpages>7</tpages></addata></record> |
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| subjects | Adult Electromyography - methods Ergometry - methods exercise physiology fitness/health Humans Knee Legs Male muscle Muscle Contraction - physiology neuromuscular Quadriceps Muscle - physiology Reproducibility of Results Signal Processing, Computer-Assisted statistics Young Adult |
| title | Reliability of the log-transformed EMG amplitude-power output relationship for incremental knee-extensor ergometry |
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