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Article: Muscle metabolism during sprint exercise in man: Influence of sprint training

TitleMuscle metabolism during sprint exercise in man: Influence of sprint training
Authors
Issue Date2004
PublisherElsevier Australia. The Journal's web site is located at http://www.elsevier.com/wps/find/journaldescription.cws_home/707423/description?navopenmenu=-2
Citation
Journal Of Science And Medicine In Sport, 2004, v. 7 n. 3, p. 314-322 How to Cite?
AbstractIn order to examine the influence of sprint training on metabolism and exercise performance during sprint exercise, 16 recreationally-active, untrained, men (V̇O2peak= 3.8+0.1 l.min-1) were randomly assigned to either a training (n= 8) or control group (n= 8). Each subject performed a 30-sec cycle sprint and a test to measure V̇O2peak before and after eight weeks of sprint training. The training group completed a series of sprints three times per week which progressed from three 30-sec cycle sprints in weeks 1 and 2, to six 30-sec sprints in weeks 7 and 8. Three mins of passive recovery separated each sprint throughout the training period. Muscle samples were obtained at rest and immediately following the pre- and post-training sprints and analysed for high energy phosphagens, glycogen and lactate; the activities of both phosphofructokinase (PFK) and citrate synthase (CS) were also measured and muscle fibre types were quantified. Training resulted in a 7.1% increase in mean power output (p< 0.05), an 8% increase in V̇O2peak (p< 0.001), a 42% increase (p< 0.01) in CS activity and a 17% increase (p< 0.05) in resting intramuscular glycogen content. In contrast, neither PFK activity nor fibre type distribution changed with training. An increase (p< 0.05) in mean power output and attenuated (p< 0.01) ATP degradation were observed during sprint exercise following training. Glycogen degradation during sprint exercise was unaffected by sprint training. These data demonstrate that sprint training may have enhanced muscle oxidative but not glycolytic capacity.
Persistent Identifierhttp://hdl.handle.net/10722/176025
ISSN
2015 Impact Factor: 3.756
2015 SCImago Journal Rankings: 1.484
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorBarnett, Cen_US
dc.contributor.authorCarey, Men_US
dc.contributor.authorProietto, Jen_US
dc.contributor.authorCerin, Een_US
dc.contributor.authorFebbraio, MAen_US
dc.contributor.authorJenkins, Den_US
dc.date.accessioned2012-11-26T09:04:35Z-
dc.date.available2012-11-26T09:04:35Z-
dc.date.issued2004en_US
dc.identifier.citationJournal Of Science And Medicine In Sport, 2004, v. 7 n. 3, p. 314-322en_US
dc.identifier.issn1440-2440en_US
dc.identifier.urihttp://hdl.handle.net/10722/176025-
dc.description.abstractIn order to examine the influence of sprint training on metabolism and exercise performance during sprint exercise, 16 recreationally-active, untrained, men (V̇O2peak= 3.8+0.1 l.min-1) were randomly assigned to either a training (n= 8) or control group (n= 8). Each subject performed a 30-sec cycle sprint and a test to measure V̇O2peak before and after eight weeks of sprint training. The training group completed a series of sprints three times per week which progressed from three 30-sec cycle sprints in weeks 1 and 2, to six 30-sec sprints in weeks 7 and 8. Three mins of passive recovery separated each sprint throughout the training period. Muscle samples were obtained at rest and immediately following the pre- and post-training sprints and analysed for high energy phosphagens, glycogen and lactate; the activities of both phosphofructokinase (PFK) and citrate synthase (CS) were also measured and muscle fibre types were quantified. Training resulted in a 7.1% increase in mean power output (p< 0.05), an 8% increase in V̇O2peak (p< 0.001), a 42% increase (p< 0.01) in CS activity and a 17% increase (p< 0.05) in resting intramuscular glycogen content. In contrast, neither PFK activity nor fibre type distribution changed with training. An increase (p< 0.05) in mean power output and attenuated (p< 0.01) ATP degradation were observed during sprint exercise following training. Glycogen degradation during sprint exercise was unaffected by sprint training. These data demonstrate that sprint training may have enhanced muscle oxidative but not glycolytic capacity.en_US
dc.languageengen_US
dc.publisherElsevier Australia. The Journal's web site is located at http://www.elsevier.com/wps/find/journaldescription.cws_home/707423/description?navopenmenu=-2en_US
dc.relation.ispartofJournal of Science and Medicine in Sporten_US
dc.subject.meshAdaptation, Physiologicalen_US
dc.subject.meshAdenosine Triphosphate - Metabolismen_US
dc.subject.meshAdulten_US
dc.subject.meshCitrate (Si)-Synthase - Metabolismen_US
dc.subject.meshEnergy Metabolism - Physiologyen_US
dc.subject.meshGlycogen - Metabolismen_US
dc.subject.meshHumansen_US
dc.subject.meshLactic Acid - Metabolismen_US
dc.subject.meshMaleen_US
dc.subject.meshMuscle Fibers, Skeletal - Physiologyen_US
dc.subject.meshMuscle, Skeletal - Metabolismen_US
dc.subject.meshOxygen Consumption - Physiologyen_US
dc.subject.meshPhosphocreatine - Metabolismen_US
dc.subject.meshPhysical Education And Training - Methodsen_US
dc.subject.meshRunning - Physiologyen_US
dc.titleMuscle metabolism during sprint exercise in man: Influence of sprint trainingen_US
dc.typeArticleen_US
dc.identifier.emailCerin, E: ecerin@hku.hken_US
dc.identifier.authorityCerin, E=rp00890en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S1440-2440(04)80026-4en_US
dc.identifier.pmid15518296-
dc.identifier.scopuseid_2-s2.0-16644389992en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-16644389992&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume7en_US
dc.identifier.issue3en_US
dc.identifier.spage314en_US
dc.identifier.epage322en_US
dc.identifier.isiWOS:000224394600006-
dc.publisher.placeAustraliaen_US
dc.identifier.scopusauthoridBarnett, C=7102280882en_US
dc.identifier.scopusauthoridCarey, M=7202744171en_US
dc.identifier.scopusauthoridProietto, J=7005601275en_US
dc.identifier.scopusauthoridCerin, E=14522064200en_US
dc.identifier.scopusauthoridFebbraio, MA=7005885696en_US
dc.identifier.scopusauthoridJenkins, D=7401557589en_US

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