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Neuromuscular fatigue and recovery dynamics following prolonged continuous run at anaerobic threshold
Objective: The aim of this study was to determine the influence of intensive aerobic running on some muscle contractile characteristics and the dynamics of their recovery during a 2 hour period afterwards. Methods: Seven well trained runners performed a 6 km run at anaerobic threshold (VOBLA). Knee...
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| Published in: | British journal of sports medicine 2006-03, Vol.40 (3), p.219-222 |
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| creator | Škof, B Strojnik, V |
| description | Objective: The aim of this study was to determine the influence of intensive aerobic running on some muscle contractile characteristics and the dynamics of their recovery during a 2 hour period afterwards. Methods: Seven well trained runners performed a 6 km run at anaerobic threshold (VOBLA). Knee torque during single twitch, low and high frequency electrical stimulation (ES), maximum voluntary knee extension, and muscle activation level test of the quadriceps femoris muscles were measured before and immediately after the run, and at several time points during a 120 minute interval that followed the run. Results: After exercise, the mean (SE) maximum twitch torque (TTW) and torque at ES with 20 Hz (low frequency ES; TF20) dropped by 14.1 (5.1)% (p |
| doi_str_mv | 10.1136/bjsm.2005.020966 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_2491987</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>67699061</sourcerecordid><originalsourceid>FETCH-LOGICAL-b554t-b9543fa9cefaf8504e5e018695a832d18672f02aa3804243b7472781e3b9f5a33</originalsourceid><addsrcrecordid>eNqFkt2LEzEUxYMobl1990kGBV9k6s3k-0WQsqtCqS-6-xgyM5l26kzSTSbr9r83pWX9ANmnXLi_c8K5HIReYphjTPj7ehvHeQXA5lCB4vwRmmEqSAlUwmM0AwK8JFzQM_Qsxi0ArhjIp-gMcwYMhJghu7Ip-DHFJg0mFJ2Z-nWyhXFtEWzjb23YF-3embFvYtH5YfA_e7cudsEP3q1tWzTeTb1LPsUiJFeYKWuNDb7um2LaBBs3fmifoyedGaJ9cXrP0ffLi2-Lz-Xy66cvi4_LsmaMTmWtGCWdUY3tTCcZUMssYMkVM5JUbZ5E1UFlDJFAK0pqQUUlJLakVh0zhJyjD0ffXapH2zbWTcEMehf60YS99qbXf29cv9Frf6srqrCSIhu8PRkEf5NsnPTYx8YOg3E2R9RccKWA4wdBLEDhSrEMvv4H3PoUXL6CxopSrjCWGXrzX0gIBSA5PljBkWqCjzHY7j4YBn3ogz70QR_6oI99yJJXfx7kt-BUgAyUR6CPk72735vwI2clgunV1UJLtVpeqqtrfZ35d0e-HrcPf_8LbWnPbw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1779008615</pqid></control><display><type>article</type><title>Neuromuscular fatigue and recovery dynamics following prolonged continuous run at anaerobic threshold</title><source>Open Access: PubMed Central</source><source>BMJ journals single titles</source><creator>Škof, B ; Strojnik, V</creator><creatorcontrib>Škof, B ; Strojnik, V</creatorcontrib><description>Objective: The aim of this study was to determine the influence of intensive aerobic running on some muscle contractile characteristics and the dynamics of their recovery during a 2 hour period afterwards. Methods: Seven well trained runners performed a 6 km run at anaerobic threshold (VOBLA). Knee torque during single twitch, low and high frequency electrical stimulation (ES), maximum voluntary knee extension, and muscle activation level test of the quadriceps femoris muscles were measured before and immediately after the run, and at several time points during a 120 minute interval that followed the run. Results: After exercise, the mean (SE) maximum twitch torque (TTW) and torque at ES with 20 Hz (low frequency ES; TF20) dropped by 14.1 (5.1)% (p<0.05) and 20.6 (7.9)% (p<0.05) respectively, while torque at stimulation with 100 Hz (high frequency ES; TF100), maximum isometric knee extension torque (maximum voluntary contraction torque; TMVC), and activation level did not change significantly. Twitch contraction time was shortened by 8 (2)% (p<0.05). Ten minutes after the run, TTW was 40% higher than immediately after the run and 10% (p<0.05) higher than before the run. TF20, TF100, and TMVC remained lower for 60 minutes (p<0.05) than before the run. Conclusions: A 6 km continuous run at VOBLA caused peripheral fatigue by impairing excitation–contraction coupling. Twitch torque recovered very quickly. However, the process of torque restoration at maximum isometric knee extension torque and at high and low frequency ES took much longer.</description><identifier>ISSN: 0306-3674</identifier><identifier>EISSN: 1473-0480</identifier><identifier>DOI: 10.1136/bjsm.2005.020966</identifier><identifier>PMID: 16505077</identifier><language>eng</language><publisher>England: BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine</publisher><subject>activation level ; Adult ; Anaerobic Threshold - physiology ; continuous running ; contraction time ; Electric Stimulation - methods ; electrical stimulation ; Electrodes ; electromechanical delay ; EMD ; Exercise ; Fatigue ; half relaxation time ; Humans ; Isometric Contraction - physiology ; Lactic Acid - blood ; LFF ; low frequency fatigue ; maximum voluntary contraction (measured here as maximum isometric knee extension) ; maximum voluntary contraction torque (measured here as maximum isometric knee extension torque) ; Metabolism ; Metabolites ; Muscle Fatigue - physiology ; Muscle, Skeletal - innervation ; Muscle, Skeletal - physiology ; Muscular system ; MVC ; Nervous System Physiological Phenomena ; Original ; Recovery of Function - physiology ; rectus femoris ; RT ; Running ; Running - physiology ; Skin Temperature - physiology ; Sports medicine ; SSC ; stretch shortening cycle ; TF100 ; TF20 ; TMVC ; Torque ; torque at ES with 20 Hz ; torque at stimulation with 100 Hz ; TTW ; twitch torque ; vastus lateralis ; vastus medialis ; Workloads</subject><ispartof>British journal of sports medicine, 2006-03, Vol.40 (3), p.219-222</ispartof><rights>Copyright 2006 British Journal of Sports Medicine</rights><rights>Copyright: 2006 Copyright 2006 British Journal of Sports Medicine</rights><rights>Copyright BMJ Publishing Group Mar 2006</rights><rights>Copyright ©2006 British Journal of Sports Medicine.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b554t-b9543fa9cefaf8504e5e018695a832d18672f02aa3804243b7472781e3b9f5a33</citedby><cites>FETCH-LOGICAL-b554t-b9543fa9cefaf8504e5e018695a832d18672f02aa3804243b7472781e3b9f5a33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://bjsm.bmj.com/content/40/3/219.full.pdf$$EPDF$$P50$$Gbmj$$H</linktopdf><linktohtml>$$Uhttp://bjsm.bmj.com/content/40/3/219.full$$EHTML$$P50$$Gbmj$$H</linktohtml><link.rule.ids>112,113,230,314,727,780,784,885,3194,27924,27925,53791,53793,77594,77595</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16505077$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Škof, B</creatorcontrib><creatorcontrib>Strojnik, V</creatorcontrib><title>Neuromuscular fatigue and recovery dynamics following prolonged continuous run at anaerobic threshold</title><title>British journal of sports medicine</title><addtitle>Br J Sports Med</addtitle><description>Objective: The aim of this study was to determine the influence of intensive aerobic running on some muscle contractile characteristics and the dynamics of their recovery during a 2 hour period afterwards. Methods: Seven well trained runners performed a 6 km run at anaerobic threshold (VOBLA). Knee torque during single twitch, low and high frequency electrical stimulation (ES), maximum voluntary knee extension, and muscle activation level test of the quadriceps femoris muscles were measured before and immediately after the run, and at several time points during a 120 minute interval that followed the run. Results: After exercise, the mean (SE) maximum twitch torque (TTW) and torque at ES with 20 Hz (low frequency ES; TF20) dropped by 14.1 (5.1)% (p<0.05) and 20.6 (7.9)% (p<0.05) respectively, while torque at stimulation with 100 Hz (high frequency ES; TF100), maximum isometric knee extension torque (maximum voluntary contraction torque; TMVC), and activation level did not change significantly. Twitch contraction time was shortened by 8 (2)% (p<0.05). Ten minutes after the run, TTW was 40% higher than immediately after the run and 10% (p<0.05) higher than before the run. TF20, TF100, and TMVC remained lower for 60 minutes (p<0.05) than before the run. Conclusions: A 6 km continuous run at VOBLA caused peripheral fatigue by impairing excitation–contraction coupling. Twitch torque recovered very quickly. However, the process of torque restoration at maximum isometric knee extension torque and at high and low frequency ES took much longer.</description><subject>activation level</subject><subject>Adult</subject><subject>Anaerobic Threshold - physiology</subject><subject>continuous running</subject><subject>contraction time</subject><subject>Electric Stimulation - methods</subject><subject>electrical stimulation</subject><subject>Electrodes</subject><subject>electromechanical delay</subject><subject>EMD</subject><subject>Exercise</subject><subject>Fatigue</subject><subject>half relaxation time</subject><subject>Humans</subject><subject>Isometric Contraction - physiology</subject><subject>Lactic Acid - blood</subject><subject>LFF</subject><subject>low frequency fatigue</subject><subject>maximum voluntary contraction (measured here as maximum isometric knee extension)</subject><subject>maximum voluntary contraction torque (measured here as maximum isometric knee extension torque)</subject><subject>Metabolism</subject><subject>Metabolites</subject><subject>Muscle Fatigue - physiology</subject><subject>Muscle, Skeletal - innervation</subject><subject>Muscle, Skeletal - physiology</subject><subject>Muscular system</subject><subject>MVC</subject><subject>Nervous System Physiological Phenomena</subject><subject>Original</subject><subject>Recovery of Function - physiology</subject><subject>rectus femoris</subject><subject>RT</subject><subject>Running</subject><subject>Running - physiology</subject><subject>Skin Temperature - physiology</subject><subject>Sports medicine</subject><subject>SSC</subject><subject>stretch shortening cycle</subject><subject>TF100</subject><subject>TF20</subject><subject>TMVC</subject><subject>Torque</subject><subject>torque at ES with 20 Hz</subject><subject>torque at stimulation with 100 Hz</subject><subject>TTW</subject><subject>twitch torque</subject><subject>vastus lateralis</subject><subject>vastus medialis</subject><subject>Workloads</subject><issn>0306-3674</issn><issn>1473-0480</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqFkt2LEzEUxYMobl1990kGBV9k6s3k-0WQsqtCqS-6-xgyM5l26kzSTSbr9r83pWX9ANmnXLi_c8K5HIReYphjTPj7ehvHeQXA5lCB4vwRmmEqSAlUwmM0AwK8JFzQM_Qsxi0ArhjIp-gMcwYMhJghu7Ip-DHFJg0mFJ2Z-nWyhXFtEWzjb23YF-3embFvYtH5YfA_e7cudsEP3q1tWzTeTb1LPsUiJFeYKWuNDb7um2LaBBs3fmifoyedGaJ9cXrP0ffLi2-Lz-Xy66cvi4_LsmaMTmWtGCWdUY3tTCcZUMssYMkVM5JUbZ5E1UFlDJFAK0pqQUUlJLakVh0zhJyjD0ffXapH2zbWTcEMehf60YS99qbXf29cv9Frf6srqrCSIhu8PRkEf5NsnPTYx8YOg3E2R9RccKWA4wdBLEDhSrEMvv4H3PoUXL6CxopSrjCWGXrzX0gIBSA5PljBkWqCjzHY7j4YBn3ogz70QR_6oI99yJJXfx7kt-BUgAyUR6CPk72735vwI2clgunV1UJLtVpeqqtrfZ35d0e-HrcPf_8LbWnPbw</recordid><startdate>200603</startdate><enddate>200603</enddate><creator>Škof, B</creator><creator>Strojnik, V</creator><general>BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine</general><general>BMJ Publishing Group LTD</general><general>BMJ Publishing Group</general><general>BMJ Group</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>3V.</scope><scope>7RV</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88I</scope><scope>8AF</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BTHHO</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>M2P</scope><scope>MBDVC</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>200603</creationdate><title>Neuromuscular fatigue and recovery dynamics following prolonged continuous run at anaerobic threshold</title><author>Škof, B ; Strojnik, V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b554t-b9543fa9cefaf8504e5e018695a832d18672f02aa3804243b7472781e3b9f5a33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>activation level</topic><topic>Adult</topic><topic>Anaerobic Threshold - physiology</topic><topic>continuous running</topic><topic>contraction time</topic><topic>Electric Stimulation - methods</topic><topic>electrical stimulation</topic><topic>Electrodes</topic><topic>electromechanical delay</topic><topic>EMD</topic><topic>Exercise</topic><topic>Fatigue</topic><topic>half relaxation time</topic><topic>Humans</topic><topic>Isometric Contraction - physiology</topic><topic>Lactic Acid - blood</topic><topic>LFF</topic><topic>low frequency fatigue</topic><topic>maximum voluntary contraction (measured here as maximum isometric knee extension)</topic><topic>maximum voluntary contraction torque (measured here as maximum isometric knee extension torque)</topic><topic>Metabolism</topic><topic>Metabolites</topic><topic>Muscle Fatigue - physiology</topic><topic>Muscle, Skeletal - innervation</topic><topic>Muscle, Skeletal - physiology</topic><topic>Muscular system</topic><topic>MVC</topic><topic>Nervous System Physiological Phenomena</topic><topic>Original</topic><topic>Recovery of Function - physiology</topic><topic>rectus femoris</topic><topic>RT</topic><topic>Running</topic><topic>Running - physiology</topic><topic>Skin Temperature - physiology</topic><topic>Sports medicine</topic><topic>SSC</topic><topic>stretch shortening cycle</topic><topic>TF100</topic><topic>TF20</topic><topic>TMVC</topic><topic>Torque</topic><topic>torque at ES with 20 Hz</topic><topic>torque at stimulation with 100 Hz</topic><topic>TTW</topic><topic>twitch torque</topic><topic>vastus lateralis</topic><topic>vastus medialis</topic><topic>Workloads</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Škof, B</creatorcontrib><creatorcontrib>Strojnik, V</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>ProQuest Central (Corporate)</collection><collection>ProQuest Nursing and Allied Health Journals</collection><collection>Physical Education Index</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>BMJ Journals</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection (Proquest) (PQ_SDU_P3)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>ProQuest research library</collection><collection>Science Database (ProQuest)</collection><collection>Research Library (Corporate)</collection><collection>Nursing & Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>British journal of sports medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Škof, B</au><au>Strojnik, V</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Neuromuscular fatigue and recovery dynamics following prolonged continuous run at anaerobic threshold</atitle><jtitle>British journal of sports medicine</jtitle><addtitle>Br J Sports Med</addtitle><date>2006-03</date><risdate>2006</risdate><volume>40</volume><issue>3</issue><spage>219</spage><epage>222</epage><pages>219-222</pages><issn>0306-3674</issn><eissn>1473-0480</eissn><abstract>Objective: The aim of this study was to determine the influence of intensive aerobic running on some muscle contractile characteristics and the dynamics of their recovery during a 2 hour period afterwards. Methods: Seven well trained runners performed a 6 km run at anaerobic threshold (VOBLA). Knee torque during single twitch, low and high frequency electrical stimulation (ES), maximum voluntary knee extension, and muscle activation level test of the quadriceps femoris muscles were measured before and immediately after the run, and at several time points during a 120 minute interval that followed the run. Results: After exercise, the mean (SE) maximum twitch torque (TTW) and torque at ES with 20 Hz (low frequency ES; TF20) dropped by 14.1 (5.1)% (p<0.05) and 20.6 (7.9)% (p<0.05) respectively, while torque at stimulation with 100 Hz (high frequency ES; TF100), maximum isometric knee extension torque (maximum voluntary contraction torque; TMVC), and activation level did not change significantly. Twitch contraction time was shortened by 8 (2)% (p<0.05). Ten minutes after the run, TTW was 40% higher than immediately after the run and 10% (p<0.05) higher than before the run. TF20, TF100, and TMVC remained lower for 60 minutes (p<0.05) than before the run. Conclusions: A 6 km continuous run at VOBLA caused peripheral fatigue by impairing excitation–contraction coupling. Twitch torque recovered very quickly. However, the process of torque restoration at maximum isometric knee extension torque and at high and low frequency ES took much longer.</abstract><cop>England</cop><pub>BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine</pub><pmid>16505077</pmid><doi>10.1136/bjsm.2005.020966</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | British journal of sports medicine, 2006-03, Vol.40 (3), p.219-222 |
| issn | 0306-3674 1473-0480 |
| language | eng |
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| source | Open Access: PubMed Central; BMJ journals single titles |
| subjects | activation level Adult Anaerobic Threshold - physiology continuous running contraction time Electric Stimulation - methods electrical stimulation Electrodes electromechanical delay EMD Exercise Fatigue half relaxation time Humans Isometric Contraction - physiology Lactic Acid - blood LFF low frequency fatigue maximum voluntary contraction (measured here as maximum isometric knee extension) maximum voluntary contraction torque (measured here as maximum isometric knee extension torque) Metabolism Metabolites Muscle Fatigue - physiology Muscle, Skeletal - innervation Muscle, Skeletal - physiology Muscular system MVC Nervous System Physiological Phenomena Original Recovery of Function - physiology rectus femoris RT Running Running - physiology Skin Temperature - physiology Sports medicine SSC stretch shortening cycle TF100 TF20 TMVC Torque torque at ES with 20 Hz torque at stimulation with 100 Hz TTW twitch torque vastus lateralis vastus medialis Workloads |
| title | Neuromuscular fatigue and recovery dynamics following prolonged continuous run at anaerobic threshold |
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