Perception of effort reflects central motor command during movement execution
It is thought that perception of effort during physical tasks is the conscious awareness of the central motor command sent to the active muscles. The aim of this study was to directly test this hypothesis by experimentally varying perception of effort and measuring movement‐related cortical potentia...
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| Veröffentlicht in: | Psychophysiology 2012-09, Vol.49 (9), p.1242-1253 |
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| creator | de Morree, Helma M. Klein, Christoph Marcora, Samuele M. |
| description | It is thought that perception of effort during physical tasks is the conscious awareness of the central motor command sent to the active muscles. The aim of this study was to directly test this hypothesis by experimentally varying perception of effort and measuring movement‐related cortical potential (MRCP). Sixteen healthy, recreationally active men made unilateral dynamic elbow flexions to lift a light (20% one repetition maximum, 1RM) and a heavier (35% 1RM) weight with a fatigued arm and a nonfatigued arm while rating of perceived effort (RPE), biceps brachii electromyogram (EMG), and MRCP were recorded. RPE, EMG amplitude, and MRCP amplitude at Cz during weight raising increased with weight and with muscle fatigue. There was a significant correlation between RPE and MRCP amplitude at the vertex during the weight raising epoch. This study provides direct neurophysiological evidence that perception of effort correlates with central motor command during movement execution. |
| doi_str_mv | 10.1111/j.1469-8986.2012.01399.x |
| format | Article |
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The aim of this study was to directly test this hypothesis by experimentally varying perception of effort and measuring movement‐related cortical potential (MRCP). Sixteen healthy, recreationally active men made unilateral dynamic elbow flexions to lift a light (20% one repetition maximum, 1RM) and a heavier (35% 1RM) weight with a fatigued arm and a nonfatigued arm while rating of perceived effort (RPE), biceps brachii electromyogram (EMG), and MRCP were recorded. RPE, EMG amplitude, and MRCP amplitude at Cz during weight raising increased with weight and with muscle fatigue. There was a significant correlation between RPE and MRCP amplitude at the vertex during the weight raising epoch. This study provides direct neurophysiological evidence that perception of effort correlates with central motor command during movement execution.</description><subject>Adult</subject><subject>Brain Mapping</subject><subject>Elbow</subject><subject>Electroencephalography</subject><subject>Electromyography</subject><subject>EMG</subject><subject>Evoked Potentials, Motor - physiology</subject><subject>Fatigue</subject><subject>Humans</subject><subject>Isometric Contraction - physiology</subject><subject>Light effects</subject><subject>Male</subject><subject>Movement</subject><subject>Movement - physiology</subject><subject>Movement-related cortical potential</subject><subject>Muscle fatigue</subject><subject>Muscle Fatigue - physiology</subject><subject>Muscle, Skeletal - physiology</subject><subject>Muscles</subject><subject>Neurobiology</subject><subject>Perceived exertion</subject><subject>Perception</subject><subject>Perception - physiology</subject><subject>Perceptions</subject><subject>Physical Exertion - physiology</subject><subject>Physiological psychology</subject><subject>Repetition</subject><issn>0048-5772</issn><issn>1469-8986</issn><issn>1540-5958</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkUtv1DAURi1ERYfCX0CW2LBJ8CN-bZCggoI0LVOVFrGyPM4NypDEUzuB6b_H6ZRZsKo3tuxzj339IYQpKWkebzclraQptNGyZISyklBuTLl7ghaHg6doQUilC6EUO0bPU9oQQgxl7Bk6ZkwxoZleoPMVRA_bsQ0DDg2GpglxxBGaDvyYsIdhjK7DfRhDxD70vRtqXE-xHX7mzd_QZwDDDvw0K16go8Z1CV4-zCfo-tPHb6efi-XXsy-n75eFF1yYQq2pZsSAr2VNdeWo0pTXRAjpdaW45NQx5iVRpiEVYVwqRc1aKObWFTTC8RP0Zu_dxnA7QRpt3yYPXecGCFOylHAtc7NV9RiUS80VZxl9_R-6CVMcciP3FKfGSJUpvad8DCnln7Lb2PYu3mXIzunYjZ1DsHMIdk7H3qdjd7n01cMF07qH-lD4L44MvNsDf9oO7h4ttqurH6t5mQXFXtCmEXYHgYu_bH66Evb7xZldXny4upQ31F7yv3N-q1o</recordid><startdate>201209</startdate><enddate>201209</enddate><creator>de Morree, Helma M.</creator><creator>Klein, Christoph</creator><creator>Marcora, Samuele M.</creator><general>Blackwell Publishing Ltd</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>7TK</scope><scope>K9.</scope><scope>7X8</scope></search><sort><creationdate>201209</creationdate><title>Perception of effort reflects central motor command during movement execution</title><author>de Morree, Helma M. ; Klein, Christoph ; Marcora, Samuele M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5359-7b18209ecd6d184a17813d0556c8473631a22c6079f0402367719b572ab4ef5a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adult</topic><topic>Brain Mapping</topic><topic>Elbow</topic><topic>Electroencephalography</topic><topic>Electromyography</topic><topic>EMG</topic><topic>Evoked Potentials, Motor - physiology</topic><topic>Fatigue</topic><topic>Humans</topic><topic>Isometric Contraction - physiology</topic><topic>Light effects</topic><topic>Male</topic><topic>Movement</topic><topic>Movement - physiology</topic><topic>Movement-related cortical potential</topic><topic>Muscle fatigue</topic><topic>Muscle Fatigue - physiology</topic><topic>Muscle, Skeletal - physiology</topic><topic>Muscles</topic><topic>Neurobiology</topic><topic>Perceived exertion</topic><topic>Perception</topic><topic>Perception - physiology</topic><topic>Perceptions</topic><topic>Physical Exertion - physiology</topic><topic>Physiological psychology</topic><topic>Repetition</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de Morree, Helma M.</creatorcontrib><creatorcontrib>Klein, Christoph</creatorcontrib><creatorcontrib>Marcora, Samuele M.</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>Neurosciences Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Psychophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de Morree, Helma M.</au><au>Klein, Christoph</au><au>Marcora, Samuele M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Perception of effort reflects central motor command during movement execution</atitle><jtitle>Psychophysiology</jtitle><addtitle>Psychophysiol</addtitle><date>2012-09</date><risdate>2012</risdate><volume>49</volume><issue>9</issue><spage>1242</spage><epage>1253</epage><pages>1242-1253</pages><issn>0048-5772</issn><eissn>1469-8986</eissn><eissn>1540-5958</eissn><abstract>It is thought that perception of effort during physical tasks is the conscious awareness of the central motor command sent to the active muscles. The aim of this study was to directly test this hypothesis by experimentally varying perception of effort and measuring movement‐related cortical potential (MRCP). Sixteen healthy, recreationally active men made unilateral dynamic elbow flexions to lift a light (20% one repetition maximum, 1RM) and a heavier (35% 1RM) weight with a fatigued arm and a nonfatigued arm while rating of perceived effort (RPE), biceps brachii electromyogram (EMG), and MRCP were recorded. RPE, EMG amplitude, and MRCP amplitude at Cz during weight raising increased with weight and with muscle fatigue. There was a significant correlation between RPE and MRCP amplitude at the vertex during the weight raising epoch. This study provides direct neurophysiological evidence that perception of effort correlates with central motor command during movement execution.</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>22725828</pmid><doi>10.1111/j.1469-8986.2012.01399.x</doi><tpages>12</tpages></addata></record> |
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| language | eng |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Adult Brain Mapping Elbow Electroencephalography Electromyography EMG Evoked Potentials, Motor - physiology Fatigue Humans Isometric Contraction - physiology Light effects Male Movement Movement - physiology Movement-related cortical potential Muscle fatigue Muscle Fatigue - physiology Muscle, Skeletal - physiology Muscles Neurobiology Perceived exertion Perception Perception - physiology Perceptions Physical Exertion - physiology Physiological psychology Repetition |
| title | Perception of effort reflects central motor command during movement execution |
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