Acute alcohol consumption aggravates the decline in muscle performance following strenuous eccentric exercise.
Identifieur interne : 000948 ( Ncbi/Curation ); précédent : 000947; suivant : 000949Acute alcohol consumption aggravates the decline in muscle performance following strenuous eccentric exercise.
Auteurs : Matthew J. Barnes [Nouvelle-Zélande] ; Toby Mündel ; Stephen R. StannardSource :
- Journal of science and medicine in sport [ 1878-1861 ] ; 2010.
English descriptors
- KwdEn :
- Adult, Alcohol Drinking (physiopathology), Athletic Performance (physiology), Citrus sinensis, Creatine Kinase (blood), Cross-Over Studies, Exercise Test, Humans, Isometric Contraction (physiology), Knee Joint, Male, Muscle Contraction (physiology), Muscle Fatigue (drug effects), Muscle Fatigue (physiology), Muscle Strength Dynamometer, Muscle, Skeletal (drug effects), Muscle, Skeletal (physiopathology), Physical Endurance (physiology), Resistance Training, Surveys and Questionnaires, Young Adult.
- MESH :
- chemical , blood : Creatine Kinase.
- drug effects : Muscle Fatigue, Muscle, Skeletal.
- physiology : Athletic Performance, Isometric Contraction, Muscle Contraction, Muscle Fatigue, Physical Endurance.
- physiopathology : Alcohol Drinking, Muscle, Skeletal.
- Adult, Citrus sinensis, Cross-Over Studies, Exercise Test, Humans, Knee Joint, Male, Muscle Strength Dynamometer, Resistance Training, Surveys and Questionnaires, Young Adult.
Abstract
This study investigated the effects of acute moderate alcohol intake on muscular performance during recovery from eccentric exercise-induced muscle damage. Eleven healthy males performed 300 maximal eccentric contractions of the quadriceps muscles of one leg on an isokinetic dynamometer. They then consumed a beverage containing 1g/kg bodyweight ethanol (as vodka and orange juice) (ALC). On another occasion they performed an equivalent bout of eccentric exercise on the contralateral leg after which they consumed an isocaloric quantity of orange juice (OJ). Measurement of maximal isokinetic (concentric and eccentric) and isometric torque produced across the knee, plasma creatine kinase (CK) concentrations and muscle soreness were made before and at 36 and 60h following each exercise bout. All measures of muscle performance were significantly reduced at 36 and 60h post-exercise compared to pre-exercise measures (all p<0.05). The greatest decreases in peak strength were observed at 36h with losses of 12%, 28% and 19% occurring for OJ isometric, concentric, and eccentric contractions, respectively. However, peak strength loss was significantly greater in ALC with the same performance measures decreasing by 34%, 40% and 34%, respectively. Post-exercise plasma creatine kinase activity and ratings of muscle soreness were not different between conditions (both p>0.05). These results indicate that consumption of even moderate amounts of alcohol following eccentric-based exercise magnifies the normally observed losses in dynamic and static strength. Therefore, to minimise exercise related losses in muscle function and expedite recovery, participants in sports involving eccentric muscle work should avoid alcohol-containing beverages in the post-event period.
DOI: 10.1016/j.jsams.2008.12.627
PubMed: 19230764
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pubmed:19230764Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Acute alcohol consumption aggravates the decline in muscle performance following strenuous eccentric exercise.</title><author><name sortKey="Barnes, Matthew J" sort="Barnes, Matthew J" uniqKey="Barnes M" first="Matthew J" last="Barnes">Matthew J. Barnes</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Food, Nutrition, and Human Health, Massey University, Palmerston North, New Zealand. M.Barnes@massey.ac.nz</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Institute of Food, Nutrition, and Human Health, Massey University, Palmerston North</wicri:regionArea><wicri:noRegion>Palmerston North</wicri:noRegion></affiliation></author><author><name sortKey="Mundel, Toby" sort="Mundel, Toby" uniqKey="Mundel T" first="Toby" last="Mündel">Toby Mündel</name></author><author><name sortKey="Stannard, Stephen R" sort="Stannard, Stephen R" uniqKey="Stannard S" first="Stephen R" last="Stannard">Stephen R. Stannard</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:19230764</idno><idno type="pmid">19230764</idno><idno type="doi">10.1016/j.jsams.2008.12.627</idno><idno type="wicri:Area/PubMed/Corpus">000898</idno><idno type="wicri:Area/PubMed/Curation">000898</idno><idno type="wicri:Area/PubMed/Checkpoint">000898</idno><idno type="wicri:Area/Ncbi/Merge">000948</idno><idno type="wicri:Area/Ncbi/Curation">000948</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Acute alcohol consumption aggravates the decline in muscle performance following strenuous eccentric exercise.</title><author><name sortKey="Barnes, Matthew J" sort="Barnes, Matthew J" uniqKey="Barnes M" first="Matthew J" last="Barnes">Matthew J. Barnes</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Food, Nutrition, and Human Health, Massey University, Palmerston North, New Zealand. M.Barnes@massey.ac.nz</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Institute of Food, Nutrition, and Human Health, Massey University, Palmerston North</wicri:regionArea><wicri:noRegion>Palmerston North</wicri:noRegion></affiliation></author><author><name sortKey="Mundel, Toby" sort="Mundel, Toby" uniqKey="Mundel T" first="Toby" last="Mündel">Toby Mündel</name></author><author><name sortKey="Stannard, Stephen R" sort="Stannard, Stephen R" uniqKey="Stannard S" first="Stephen R" last="Stannard">Stephen R. Stannard</name></author></analytic><series><title level="j">Journal of science and medicine in sport</title><idno type="eISSN">1878-1861</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Alcohol Drinking (physiopathology)</term><term>Athletic Performance (physiology)</term><term>Citrus sinensis</term><term>Creatine Kinase (blood)</term><term>Cross-Over Studies</term><term>Exercise Test</term><term>Humans</term><term>Isometric Contraction (physiology)</term><term>Knee Joint</term><term>Male</term><term>Muscle Contraction (physiology)</term><term>Muscle Fatigue (drug effects)</term><term>Muscle Fatigue (physiology)</term><term>Muscle Strength Dynamometer</term><term>Muscle, Skeletal (drug effects)</term><term>Muscle, Skeletal (physiopathology)</term><term>Physical Endurance (physiology)</term><term>Resistance Training</term><term>Surveys and Questionnaires</term><term>Young Adult</term></keywords><keywords scheme="MESH" type="chemical" qualifier="blood" xml:lang="en"><term>Creatine Kinase</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Muscle Fatigue</term><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Athletic Performance</term><term>Isometric Contraction</term><term>Muscle Contraction</term><term>Muscle Fatigue</term><term>Physical Endurance</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Alcohol Drinking</term><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Citrus sinensis</term><term>Cross-Over Studies</term><term>Exercise Test</term><term>Humans</term><term>Knee Joint</term><term>Male</term><term>Muscle Strength Dynamometer</term><term>Resistance Training</term><term>Surveys and Questionnaires</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study investigated the effects of acute moderate alcohol intake on muscular performance during recovery from eccentric exercise-induced muscle damage. Eleven healthy males performed 300 maximal eccentric contractions of the quadriceps muscles of one leg on an isokinetic dynamometer. They then consumed a beverage containing 1g/kg bodyweight ethanol (as vodka and orange juice) (ALC). On another occasion they performed an equivalent bout of eccentric exercise on the contralateral leg after which they consumed an isocaloric quantity of orange juice (OJ). Measurement of maximal isokinetic (concentric and eccentric) and isometric torque produced across the knee, plasma creatine kinase (CK) concentrations and muscle soreness were made before and at 36 and 60h following each exercise bout. All measures of muscle performance were significantly reduced at 36 and 60h post-exercise compared to pre-exercise measures (all p<0.05). The greatest decreases in peak strength were observed at 36h with losses of 12%, 28% and 19% occurring for OJ isometric, concentric, and eccentric contractions, respectively. However, peak strength loss was significantly greater in ALC with the same performance measures decreasing by 34%, 40% and 34%, respectively. Post-exercise plasma creatine kinase activity and ratings of muscle soreness were not different between conditions (both p>0.05). These results indicate that consumption of even moderate amounts of alcohol following eccentric-based exercise magnifies the normally observed losses in dynamic and static strength. Therefore, to minimise exercise related losses in muscle function and expedite recovery, participants in sports involving eccentric muscle work should avoid alcohol-containing beverages in the post-event period.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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