Targeted gripping reduces shoulder muscle activity and variability
Abstract The purpose of this study was to determine if the effect of visually targeted gripping on shoulder muscle activity was maintained with repeated exposures. Eleven healthy males had eight shoulder muscles monitored via surface electromyography while maintaining shoulder elevation at 90° in th...
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Veröffentlicht in: | Journal of electromyography and kinesiology 2012-04, Vol.22 (2), p.186-190 |
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description | Abstract The purpose of this study was to determine if the effect of visually targeted gripping on shoulder muscle activity was maintained with repeated exposures. Eleven healthy males had eight shoulder muscles monitored via surface electromyography while maintaining shoulder elevation at 90° in the scapular plane with and without a 30% grip force. Three non-gripping trials were followed by 15 gripping trials and another 3 non-gripping control trials. Gripping significantly decreased the activity of the anterior deltoid, trapezius, and latissimus dorsi over the exposure of 15 trials. Gripping also reduced variability in all muscles’ activity. The changes in shoulder muscle activity are likely in response to forces being transferred through multi-articular muscles spanning from the forearm to the shoulder. Targeted gripping during shoulder elevation resulted in small but significant decreases in muscle activity and reduced variability which supports previous evidence for increased risk of upper extremity disorders in occupational settings. |
doi_str_mv | 10.1016/j.jelekin.2011.11.011 |
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Eleven healthy males had eight shoulder muscles monitored via surface electromyography while maintaining shoulder elevation at 90° in the scapular plane with and without a 30% grip force. Three non-gripping trials were followed by 15 gripping trials and another 3 non-gripping control trials. Gripping significantly decreased the activity of the anterior deltoid, trapezius, and latissimus dorsi over the exposure of 15 trials. Gripping also reduced variability in all muscles’ activity. The changes in shoulder muscle activity are likely in response to forces being transferred through multi-articular muscles spanning from the forearm to the shoulder. Targeted gripping during shoulder elevation resulted in small but significant decreases in muscle activity and reduced variability which supports previous evidence for increased risk of upper extremity disorders in occupational settings.</description><identifier>ISSN: 1050-6411</identifier><identifier>EISSN: 1873-5711</identifier><identifier>DOI: 10.1016/j.jelekin.2011.11.011</identifier><identifier>PMID: 22154705</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Adult ; Coordination ; Electromyography ; EMG ; Feedback ; Grip ; Hand Strength - physiology ; Humans ; Learning ; Male ; Muscle Contraction - physiology ; Muscle Strength Dynamometer ; Muscle, Skeletal - physiology ; Physical Medicine and Rehabilitation ; Shoulder ; Shoulder - physiology</subject><ispartof>Journal of electromyography and kinesiology, 2012-04, Vol.22 (2), p.186-190</ispartof><rights>Elsevier Ltd</rights><rights>2011 Elsevier Ltd</rights><rights>Copyright © 2011 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c419t-d53faaa46bc0d7e64cb99905b044cab666e0cd1f6526527e344049268afdea153</citedby><cites>FETCH-LOGICAL-c419t-d53faaa46bc0d7e64cb99905b044cab666e0cd1f6526527e344049268afdea153</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jelekin.2011.11.011$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22154705$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hodder, Joanne N</creatorcontrib><creatorcontrib>Keir, Peter J</creatorcontrib><title>Targeted gripping reduces shoulder muscle activity and variability</title><title>Journal of electromyography and kinesiology</title><addtitle>J Electromyogr Kinesiol</addtitle><description>Abstract The purpose of this study was to determine if the effect of visually targeted gripping on shoulder muscle activity was maintained with repeated exposures. Eleven healthy males had eight shoulder muscles monitored via surface electromyography while maintaining shoulder elevation at 90° in the scapular plane with and without a 30% grip force. Three non-gripping trials were followed by 15 gripping trials and another 3 non-gripping control trials. Gripping significantly decreased the activity of the anterior deltoid, trapezius, and latissimus dorsi over the exposure of 15 trials. Gripping also reduced variability in all muscles’ activity. The changes in shoulder muscle activity are likely in response to forces being transferred through multi-articular muscles spanning from the forearm to the shoulder. Targeted gripping during shoulder elevation resulted in small but significant decreases in muscle activity and reduced variability which supports previous evidence for increased risk of upper extremity disorders in occupational settings.</description><subject>Adult</subject><subject>Coordination</subject><subject>Electromyography</subject><subject>EMG</subject><subject>Feedback</subject><subject>Grip</subject><subject>Hand Strength - physiology</subject><subject>Humans</subject><subject>Learning</subject><subject>Male</subject><subject>Muscle Contraction - physiology</subject><subject>Muscle Strength Dynamometer</subject><subject>Muscle, Skeletal - physiology</subject><subject>Physical Medicine and Rehabilitation</subject><subject>Shoulder</subject><subject>Shoulder - physiology</subject><issn>1050-6411</issn><issn>1873-5711</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFUcFu2zAMFYoOTdvtEzb41pNT0pbk-LKiC9Z2QIEdlp0FWaIzuYqdSXaA_P0UJOuhlwIPeCTwSILvMfYZYY6A8rabd-TpxfXzAhDnCYnO2CUuqjIXFeJ5qkFALjnijF3F2AFgBQu4YLOiQMErEJfs20qHNY1ks3Vw263r11kgOxmKWfwzTN5SyDZTNJ4ybUa3c-M-073Ndjo43Tif-o_sQ6t9pE8nvma_H76vlk_588_HH8v759xwrMfcirLVWnPZGLAVSW6auq5BNMC50Y2UksBYbKUoEioqOQdeF3KhW0saRXnNbo57t2H4O1Ec1cZFQ97rnoYpqrrAqoASeFKKo9KEIcZArdoGt9FhrxDUwT3VqZN76uCeSkiU5r6cLkzNhuzr1H-7kuDuKKD0585RUNE46g1ZF8iMyg7u3RNf32ww3vXOaP9Ce4rdMIU-mahQxUKB-nWI8JAgYkpvUWP5DyrgmCU</recordid><startdate>20120401</startdate><enddate>20120401</enddate><creator>Hodder, Joanne N</creator><creator>Keir, Peter J</creator><general>Elsevier Ltd</general><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>20120401</creationdate><title>Targeted gripping reduces shoulder muscle activity and variability</title><author>Hodder, Joanne N ; Keir, Peter J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c419t-d53faaa46bc0d7e64cb99905b044cab666e0cd1f6526527e344049268afdea153</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adult</topic><topic>Coordination</topic><topic>Electromyography</topic><topic>EMG</topic><topic>Feedback</topic><topic>Grip</topic><topic>Hand Strength - physiology</topic><topic>Humans</topic><topic>Learning</topic><topic>Male</topic><topic>Muscle Contraction - physiology</topic><topic>Muscle Strength Dynamometer</topic><topic>Muscle, Skeletal - physiology</topic><topic>Physical Medicine and Rehabilitation</topic><topic>Shoulder</topic><topic>Shoulder - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hodder, Joanne N</creatorcontrib><creatorcontrib>Keir, Peter J</creatorcontrib><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>Journal of electromyography and kinesiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hodder, Joanne N</au><au>Keir, Peter J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Targeted gripping reduces shoulder muscle activity and variability</atitle><jtitle>Journal of electromyography and kinesiology</jtitle><addtitle>J Electromyogr Kinesiol</addtitle><date>2012-04-01</date><risdate>2012</risdate><volume>22</volume><issue>2</issue><spage>186</spage><epage>190</epage><pages>186-190</pages><issn>1050-6411</issn><eissn>1873-5711</eissn><abstract>Abstract The purpose of this study was to determine if the effect of visually targeted gripping on shoulder muscle activity was maintained with repeated exposures. Eleven healthy males had eight shoulder muscles monitored via surface electromyography while maintaining shoulder elevation at 90° in the scapular plane with and without a 30% grip force. Three non-gripping trials were followed by 15 gripping trials and another 3 non-gripping control trials. Gripping significantly decreased the activity of the anterior deltoid, trapezius, and latissimus dorsi over the exposure of 15 trials. Gripping also reduced variability in all muscles’ activity. The changes in shoulder muscle activity are likely in response to forces being transferred through multi-articular muscles spanning from the forearm to the shoulder. Targeted gripping during shoulder elevation resulted in small but significant decreases in muscle activity and reduced variability which supports previous evidence for increased risk of upper extremity disorders in occupational settings.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>22154705</pmid><doi>10.1016/j.jelekin.2011.11.011</doi><tpages>5</tpages></addata></record> |
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subjects | Adult Coordination Electromyography EMG Feedback Grip Hand Strength - physiology Humans Learning Male Muscle Contraction - physiology Muscle Strength Dynamometer Muscle, Skeletal - physiology Physical Medicine and Rehabilitation Shoulder Shoulder - physiology |
title | Targeted gripping reduces shoulder muscle activity and variability |
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