Hamstring muscle fatigue and central motor output during a simulated soccer match
To examine changes in hamstring muscle fatigue and central motor output during a 90-minute simulated soccer match, and the concomitant changes in hamstring maximal torque and rate of torque development. Eight amateur male soccer players performed a 90-minute simulated soccer match, with measures per...
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| creator | Marshall, Paul W M Lovell, Ric Jeppesen, Gitte K Andersen, Kristoffer Siegler, Jason C |
| description | To examine changes in hamstring muscle fatigue and central motor output during a 90-minute simulated soccer match, and the concomitant changes in hamstring maximal torque and rate of torque development.
Eight amateur male soccer players performed a 90-minute simulated soccer match, with measures performed at the start of and every 15-minutes during each half. Maximal torque (Nm) and rate of torque development (RTD; Nm.s-1) were calculated from maximal isometric knee flexor contractions performed at 10° of flexion. Hamstring peripheral fatigue was assessed from changes in the size and shape of the resting twitch (RT). Hamstring central motor output was quantified from voluntary activation (%) and normalized biceps femoris (BF) and medial hamstrings (MH) electromyographic amplitudes (EMG/M).
Maximal torque was reduced at 45-minutes by 7.6±9.4% (p |
| doi_str_mv | 10.1371/journal.pone.0102753 |
| format | Article |
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Eight amateur male soccer players performed a 90-minute simulated soccer match, with measures performed at the start of and every 15-minutes during each half. Maximal torque (Nm) and rate of torque development (RTD; Nm.s-1) were calculated from maximal isometric knee flexor contractions performed at 10° of flexion. Hamstring peripheral fatigue was assessed from changes in the size and shape of the resting twitch (RT). Hamstring central motor output was quantified from voluntary activation (%) and normalized biceps femoris (BF) and medial hamstrings (MH) electromyographic amplitudes (EMG/M).
Maximal torque was reduced at 45-minutes by 7.6±9.4% (p<0.05). RTD in time intervals of 0-25, 0-50, and 0-75 ms post-contraction onset were reduced after 15-minutes in the first-half between 29.6 to 46.2% (p<0.05), and were further reduced at the end of the second-half (p<0.05). Maximal EMG/M was reduced for biceps femoris only concomitant to the time-course of reductions in maximal torque (p = 0.007). The rate of EMG rise for BF and MH was reduced in early time periods (0-75 ms) post-contraction onset (p<0.05). No changes were observed for the size and shape of the RT, indicating no hamstring peripheral fatigue.
Centrally mediated reductions in maximal torque and rate of torque development provide insight into factors that may explain hamstring injury risk during soccer. Of particular interest were early reductions during the first-half of hamstring rate of torque development, and the decline in maximal EMG/M of biceps femoris in the latter stages of the half. These are important findings that may help explain why the hamstrings are particularly vulnerable to strain injury during soccer.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0102753</identifier><identifier>PMID: 25047547</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adolescent ; Adult ; Biology and Life Sciences ; Contraction ; Electromyography ; Exercise ; Fatigue ; Health risks ; Humans ; Injuries ; Injury prevention ; Isometric Contraction - physiology ; Knee ; Laboratories ; Male ; Medicine and Health Sciences ; Muscle contraction ; Muscle fatigue ; Muscle Fatigue - physiology ; Muscle, Skeletal - physiology ; Muscles ; Muscular fatigue ; Nervous system ; NMR ; Nuclear magnetic resonance ; Physiology ; Range of Motion, Articular - physiology ; Simulation ; Soccer ; Soccer - physiology ; Soccer players ; Studies ; Torque ; Young Adult</subject><ispartof>PloS one, 2014-07, Vol.9 (7), p.e102753-e102753</ispartof><rights>COPYRIGHT 2014 Public Library of Science</rights><rights>2014 Marshall et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2014 Marshall et al 2014 Marshall et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-3717e26c6ef16bae3c777a4b7b6544805c39a94c9e7dcaf5b9249faa86ae52353</citedby><cites>FETCH-LOGICAL-c692t-3717e26c6ef16bae3c777a4b7b6544805c39a94c9e7dcaf5b9249faa86ae52353</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4105441/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4105441/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,2096,2915,23845,27901,27902,53766,53768,79343,79344</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25047547$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Marshall, Paul W M</creatorcontrib><creatorcontrib>Lovell, Ric</creatorcontrib><creatorcontrib>Jeppesen, Gitte K</creatorcontrib><creatorcontrib>Andersen, Kristoffer</creatorcontrib><creatorcontrib>Siegler, Jason C</creatorcontrib><title>Hamstring muscle fatigue and central motor output during a simulated soccer match</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>To examine changes in hamstring muscle fatigue and central motor output during a 90-minute simulated soccer match, and the concomitant changes in hamstring maximal torque and rate of torque development.
Eight amateur male soccer players performed a 90-minute simulated soccer match, with measures performed at the start of and every 15-minutes during each half. Maximal torque (Nm) and rate of torque development (RTD; Nm.s-1) were calculated from maximal isometric knee flexor contractions performed at 10° of flexion. Hamstring peripheral fatigue was assessed from changes in the size and shape of the resting twitch (RT). Hamstring central motor output was quantified from voluntary activation (%) and normalized biceps femoris (BF) and medial hamstrings (MH) electromyographic amplitudes (EMG/M).
Maximal torque was reduced at 45-minutes by 7.6±9.4% (p<0.05). RTD in time intervals of 0-25, 0-50, and 0-75 ms post-contraction onset were reduced after 15-minutes in the first-half between 29.6 to 46.2% (p<0.05), and were further reduced at the end of the second-half (p<0.05). Maximal EMG/M was reduced for biceps femoris only concomitant to the time-course of reductions in maximal torque (p = 0.007). The rate of EMG rise for BF and MH was reduced in early time periods (0-75 ms) post-contraction onset (p<0.05). No changes were observed for the size and shape of the RT, indicating no hamstring peripheral fatigue.
Centrally mediated reductions in maximal torque and rate of torque development provide insight into factors that may explain hamstring injury risk during soccer. Of particular interest were early reductions during the first-half of hamstring rate of torque development, and the decline in maximal EMG/M of biceps femoris in the latter stages of the half. These are important findings that may help explain why the hamstrings are particularly vulnerable to strain injury during soccer.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Biology and Life Sciences</subject><subject>Contraction</subject><subject>Electromyography</subject><subject>Exercise</subject><subject>Fatigue</subject><subject>Health risks</subject><subject>Humans</subject><subject>Injuries</subject><subject>Injury prevention</subject><subject>Isometric Contraction - physiology</subject><subject>Knee</subject><subject>Laboratories</subject><subject>Male</subject><subject>Medicine and Health Sciences</subject><subject>Muscle contraction</subject><subject>Muscle fatigue</subject><subject>Muscle Fatigue - physiology</subject><subject>Muscle, Skeletal - physiology</subject><subject>Muscles</subject><subject>Muscular fatigue</subject><subject>Nervous system</subject><subject>NMR</subject><subject>Nuclear magnetic resonance</subject><subject>Physiology</subject><subject>Range of Motion, Articular - physiology</subject><subject>Simulation</subject><subject>Soccer</subject><subject>Soccer - physiology</subject><subject>Soccer players</subject><subject>Studies</subject><subject>Torque</subject><subject>Young Adult</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><sourceid>DOA</sourceid><recordid>eNqNkluL1DAYhoso7rr6D0QLgujFjDk1aW-EZVF3YGHxeBu-pmknS9uMOYj-e9OZ7jKVvZBcJCTPd3i_vFn2HKM1pgK_u7HRjdCvd3bUa4QREQV9kJ3iipIVJ4g-PDqfZE-8v0GooCXnj7MTUiAmCiZOs8-XMPjgzNjlQ_Sq13kLwXRR5zA2udJjcNDngw3W5TaGXQx5E_c45N4MsYegm9xbpbTLBwhq-zR71ELv9bN5P8u-f_zw7eJydXX9aXNxfrVSvCJhlSQITbjiusW8Bk2VEAJYLWpeMFaiQtEKKqYqLRoFbVFXhFUtQMlBF4QW9Cx7eci7662X8zS8xEkWRSXHOBGbA9FYuJE7ZwZwf6QFI_cX1nUSXDBJtKybtkaIM8FKxghhNeNlU7G60AJXpJ2qvZ-rxXrQzTyYRdLly2i2srO_JMMo6ZmaeTMncPZn1D7IwXil-x5GbeO-75JTxAqa0Ff_oPerm6kOkgAztjbVVVNSec5wiWmF2dT3-h4qrUYPRiXrtCbdLwLeLgISE_Tv0EH0Xm6-fvl_9vrHkn19xG419GHrbR-DsaNfguwAKme9d7q9GzJGcnL-7TTk5Hw5Oz-FvTj-oLugW6vTv-W__S4</recordid><startdate>20140721</startdate><enddate>20140721</enddate><creator>Marshall, Paul W M</creator><creator>Lovell, Ric</creator><creator>Jeppesen, Gitte K</creator><creator>Andersen, Kristoffer</creator><creator>Siegler, Jason C</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</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>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20140721</creationdate><title>Hamstring muscle fatigue and central motor output during a simulated soccer match</title><author>Marshall, Paul W M ; Lovell, Ric ; Jeppesen, Gitte K ; Andersen, Kristoffer ; Siegler, Jason C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-3717e26c6ef16bae3c777a4b7b6544805c39a94c9e7dcaf5b9249faa86ae52353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Biology and Life Sciences</topic><topic>Contraction</topic><topic>Electromyography</topic><topic>Exercise</topic><topic>Fatigue</topic><topic>Health risks</topic><topic>Humans</topic><topic>Injuries</topic><topic>Injury prevention</topic><topic>Isometric Contraction - physiology</topic><topic>Knee</topic><topic>Laboratories</topic><topic>Male</topic><topic>Medicine and Health Sciences</topic><topic>Muscle contraction</topic><topic>Muscle fatigue</topic><topic>Muscle Fatigue - physiology</topic><topic>Muscle, Skeletal - physiology</topic><topic>Muscles</topic><topic>Muscular fatigue</topic><topic>Nervous system</topic><topic>NMR</topic><topic>Nuclear magnetic resonance</topic><topic>Physiology</topic><topic>Range of Motion, Articular - physiology</topic><topic>Simulation</topic><topic>Soccer</topic><topic>Soccer - physiology</topic><topic>Soccer players</topic><topic>Studies</topic><topic>Torque</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Marshall, Paul W M</creatorcontrib><creatorcontrib>Lovell, Ric</creatorcontrib><creatorcontrib>Jeppesen, Gitte K</creatorcontrib><creatorcontrib>Andersen, Kristoffer</creatorcontrib><creatorcontrib>Siegler, Jason C</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Gale In Context: Opposing Viewpoints</collection><collection>Gale In Context: Science</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Immunology Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Agricultural Science Collection</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Meteorological & Geoastrophysical Abstracts - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Marshall, Paul W M</au><au>Lovell, Ric</au><au>Jeppesen, Gitte K</au><au>Andersen, Kristoffer</au><au>Siegler, Jason C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hamstring muscle fatigue and central motor output during a simulated soccer match</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2014-07-21</date><risdate>2014</risdate><volume>9</volume><issue>7</issue><spage>e102753</spage><epage>e102753</epage><pages>e102753-e102753</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>To examine changes in hamstring muscle fatigue and central motor output during a 90-minute simulated soccer match, and the concomitant changes in hamstring maximal torque and rate of torque development.
Eight amateur male soccer players performed a 90-minute simulated soccer match, with measures performed at the start of and every 15-minutes during each half. Maximal torque (Nm) and rate of torque development (RTD; Nm.s-1) were calculated from maximal isometric knee flexor contractions performed at 10° of flexion. Hamstring peripheral fatigue was assessed from changes in the size and shape of the resting twitch (RT). Hamstring central motor output was quantified from voluntary activation (%) and normalized biceps femoris (BF) and medial hamstrings (MH) electromyographic amplitudes (EMG/M).
Maximal torque was reduced at 45-minutes by 7.6±9.4% (p<0.05). RTD in time intervals of 0-25, 0-50, and 0-75 ms post-contraction onset were reduced after 15-minutes in the first-half between 29.6 to 46.2% (p<0.05), and were further reduced at the end of the second-half (p<0.05). Maximal EMG/M was reduced for biceps femoris only concomitant to the time-course of reductions in maximal torque (p = 0.007). The rate of EMG rise for BF and MH was reduced in early time periods (0-75 ms) post-contraction onset (p<0.05). No changes were observed for the size and shape of the RT, indicating no hamstring peripheral fatigue.
Centrally mediated reductions in maximal torque and rate of torque development provide insight into factors that may explain hamstring injury risk during soccer. Of particular interest were early reductions during the first-half of hamstring rate of torque development, and the decline in maximal EMG/M of biceps femoris in the latter stages of the half. These are important findings that may help explain why the hamstrings are particularly vulnerable to strain injury during soccer.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>25047547</pmid><doi>10.1371/journal.pone.0102753</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Adolescent Adult Biology and Life Sciences Contraction Electromyography Exercise Fatigue Health risks Humans Injuries Injury prevention Isometric Contraction - physiology Knee Laboratories Male Medicine and Health Sciences Muscle contraction Muscle fatigue Muscle Fatigue - physiology Muscle, Skeletal - physiology Muscles Muscular fatigue Nervous system NMR Nuclear magnetic resonance Physiology Range of Motion, Articular - physiology Simulation Soccer Soccer - physiology Soccer players Studies Torque Young Adult |
| title | Hamstring muscle fatigue and central motor output during a simulated soccer match |
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