Effect of carbohydrate or carbohydrate plus medium-chain triglyceride ingestion on cycling time trial performance
1 Exercise Physiology and Metabolism Laboratory, Department of Physiology, The University of Melbourne, Parkville, Victoria 3052; and 2 School of Health Sciences, Deakin University, Burwood, Victoria 3125, Australia This study examined the effectiveness of ingesting a carbohydrate or carbohydrate ...
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| Veröffentlicht in: | Journal of applied physiology (1985) 2000-01, Vol.88 (1), p.113-119 |
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| container_title | Journal of applied physiology (1985) |
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| creator | Angus, Damien J Hargreaves, Mark Dancey, Jane Febbraio, Mark A |
| description | 1 Exercise Physiology and Metabolism Laboratory,
Department of Physiology, The University of Melbourne, Parkville,
Victoria 3052; and 2 School of Health Sciences, Deakin
University, Burwood, Victoria 3125, Australia
This study examined the effectiveness of ingesting a
carbohydrate or carbohydrate + medium-chain triglycerides (MCT) on
metabolism and cycling performance. Eight endurance-trained men
[peak O 2 uptake = 4.71 ± 0.09 (SE) l/min]
completed 35 kJ/kg as quickly as possible [time trial (TT)]
while consuming 250 ml/15 min of either a 6% (wt/vol) carbohydrate
solution (C), a 6% carbohydrate + 4.2% MCT solution (C+M), or a sweet
placebo (P). Time to complete the set amount of work was reduced in
both C and C+M compared with P by 7 and 5%, respectively (C: 166 ± 7 min; C+M: 169 ± 7 min; P: 178 ± 11 min; P |
| doi_str_mv | 10.1152/jappl.2000.88.1.113 |
| format | Article |
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Department of Physiology, The University of Melbourne, Parkville,
Victoria 3052; and 2 School of Health Sciences, Deakin
University, Burwood, Victoria 3125, Australia
This study examined the effectiveness of ingesting a
carbohydrate or carbohydrate + medium-chain triglycerides (MCT) on
metabolism and cycling performance. Eight endurance-trained men
[peak O 2 uptake = 4.71 ± 0.09 (SE) l/min]
completed 35 kJ/kg as quickly as possible [time trial (TT)]
while consuming 250 ml/15 min of either a 6% (wt/vol) carbohydrate
solution (C), a 6% carbohydrate + 4.2% MCT solution (C+M), or a sweet
placebo (P). Time to complete the set amount of work was reduced in
both C and C+M compared with P by 7 and 5%, respectively (C: 166 ± 7 min; C+M: 169 ± 7 min; P: 178 ± 11 min; P < 0.01). Plasma
glucose concentration was maintained at or above resting values
throughout both C and C+M trials but decreased ( P < 0.05) below resting values in P at the completion of the TT. The
estimated rate of carbohydrate oxidation was not different during the
first 90 min of exercise but thereafter was reduced ( P < 0.05) in P and was maintained in both C and C+M. These data demonstrate
that carbohydrate ingestion during exercise improves 100-km TT
performance compared with a sweet placebo, but the addition of MCT does
not provide any further performance enhancement.
endurance exercise; glucose</description><identifier>ISSN: 8750-7587</identifier><identifier>EISSN: 1522-1601</identifier><identifier>DOI: 10.1152/jappl.2000.88.1.113</identifier><identifier>PMID: 10642370</identifier><identifier>CODEN: JAPHEV</identifier><language>eng</language><publisher>Bethesda, MD: Am Physiological Soc</publisher><subject>Adult ; Anatomy & physiology ; Beverages ; Bicycling - physiology ; Biological and medical sciences ; Blood Glucose - drug effects ; Carbohydrates ; Dietary Carbohydrates - administration & dosage ; Dietary Carbohydrates - metabolism ; Dietary Carbohydrates - pharmacology ; Double-Blind Method ; Exercise ; Exercise - physiology ; Fats - metabolism ; Fatty Acids, Nonesterified - blood ; Feeding. Feeding behavior ; Fundamental and applied biological sciences. Psychology ; Glucose ; Heart Rate - drug effects ; Humans ; Insulin - blood ; Lactic Acid - blood ; Male ; Molecular Weight ; Oxidation-Reduction - drug effects ; Oxygen - metabolism ; Time Factors ; Triglycerides - administration & dosage ; Triglycerides - chemistry ; Triglycerides - pharmacology ; Vertebrates: anatomy and physiology, studies on body, several organs or systems ; Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports</subject><ispartof>Journal of applied physiology (1985), 2000-01, Vol.88 (1), p.113-119</ispartof><rights>2000 INIST-CNRS</rights><rights>Copyright American Physiological Society Jan 2000</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c530t-6b89c0a95e673acdc4900f403055f108fc1346d5b7fb749d7d3f30f990d18dc53</citedby><cites>FETCH-LOGICAL-c530t-6b89c0a95e673acdc4900f403055f108fc1346d5b7fb749d7d3f30f990d18dc53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,3039,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1308716$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10642370$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Angus, Damien J</creatorcontrib><creatorcontrib>Hargreaves, Mark</creatorcontrib><creatorcontrib>Dancey, Jane</creatorcontrib><creatorcontrib>Febbraio, Mark A</creatorcontrib><title>Effect of carbohydrate or carbohydrate plus medium-chain triglyceride ingestion on cycling time trial performance</title><title>Journal of applied physiology (1985)</title><addtitle>J Appl Physiol (1985)</addtitle><description>1 Exercise Physiology and Metabolism Laboratory,
Department of Physiology, The University of Melbourne, Parkville,
Victoria 3052; and 2 School of Health Sciences, Deakin
University, Burwood, Victoria 3125, Australia
This study examined the effectiveness of ingesting a
carbohydrate or carbohydrate + medium-chain triglycerides (MCT) on
metabolism and cycling performance. Eight endurance-trained men
[peak O 2 uptake = 4.71 ± 0.09 (SE) l/min]
completed 35 kJ/kg as quickly as possible [time trial (TT)]
while consuming 250 ml/15 min of either a 6% (wt/vol) carbohydrate
solution (C), a 6% carbohydrate + 4.2% MCT solution (C+M), or a sweet
placebo (P). Time to complete the set amount of work was reduced in
both C and C+M compared with P by 7 and 5%, respectively (C: 166 ± 7 min; C+M: 169 ± 7 min; P: 178 ± 11 min; P < 0.01). Plasma
glucose concentration was maintained at or above resting values
throughout both C and C+M trials but decreased ( P < 0.05) below resting values in P at the completion of the TT. The
estimated rate of carbohydrate oxidation was not different during the
first 90 min of exercise but thereafter was reduced ( P < 0.05) in P and was maintained in both C and C+M. These data demonstrate
that carbohydrate ingestion during exercise improves 100-km TT
performance compared with a sweet placebo, but the addition of MCT does
not provide any further performance enhancement.
endurance exercise; glucose</description><subject>Adult</subject><subject>Anatomy & physiology</subject><subject>Beverages</subject><subject>Bicycling - physiology</subject><subject>Biological and medical sciences</subject><subject>Blood Glucose - drug effects</subject><subject>Carbohydrates</subject><subject>Dietary Carbohydrates - administration & dosage</subject><subject>Dietary Carbohydrates - metabolism</subject><subject>Dietary Carbohydrates - pharmacology</subject><subject>Double-Blind Method</subject><subject>Exercise</subject><subject>Exercise - physiology</subject><subject>Fats - metabolism</subject><subject>Fatty Acids, Nonesterified - blood</subject><subject>Feeding. Feeding behavior</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Glucose</subject><subject>Heart Rate - drug effects</subject><subject>Humans</subject><subject>Insulin - blood</subject><subject>Lactic Acid - blood</subject><subject>Male</subject><subject>Molecular Weight</subject><subject>Oxidation-Reduction - drug effects</subject><subject>Oxygen - metabolism</subject><subject>Time Factors</subject><subject>Triglycerides - administration & dosage</subject><subject>Triglycerides - chemistry</subject><subject>Triglycerides - pharmacology</subject><subject>Vertebrates: anatomy and physiology, studies on body, several organs or systems</subject><subject>Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports</subject><issn>8750-7587</issn><issn>1522-1601</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkV2L1DAUhoMo7rj6CwQpInrV8aRpk_RSlv0QFrxZr0Oaj5kMadNNWrT_3tQZGRVECIScPO_5ehF6jWGLcVN9PMhx9NsKALacb3EOkidok3-qElPAT9GGswZK1nB2gV6kdADAdd3g5-gCA60rwmCDHq-tNWoqgi2UjF3YLzrKyRQh_vke_ZyK3mg396XaSzcUU3Q7vygTnTaFG3YmTS4MRT5qUT4Hisn1ZsWkL0YTbYi9HJR5iZ5Z6ZN5dbov0deb64eru_L-y-3nq0_3pWoITCXteKtAto2hjEilVd0C2BoINI3FwK3CpKa66ZjtWN1qpoklYNsWNOY657hE7495xxge59yd6F1Sxns5mDAnwYDTtm2r_4KYY0JpgzP49i_wEOY45CFEVVWY1tCuEDlCKoaUorFijK6XcREYxOqb-OmbWH0TnAucgySr3pxSz13e8m-ao1EZeHcCZFLS25hX6dKZI8AZpufqe7fbf3PRiHG_JBd82C3iZvb-wXyf1g5-VRajtln14d-qDJ_7_AEsf8Nd</recordid><startdate>20000101</startdate><enddate>20000101</enddate><creator>Angus, Damien J</creator><creator>Hargreaves, Mark</creator><creator>Dancey, Jane</creator><creator>Febbraio, Mark A</creator><general>Am Physiological Soc</general><general>American Physiological Society</general><scope>IQODW</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>7QP</scope><scope>7QR</scope><scope>7TK</scope><scope>7TS</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>20000101</creationdate><title>Effect of carbohydrate or carbohydrate plus medium-chain triglyceride ingestion on cycling time trial performance</title><author>Angus, Damien J ; Hargreaves, Mark ; Dancey, Jane ; Febbraio, Mark A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c530t-6b89c0a95e673acdc4900f403055f108fc1346d5b7fb749d7d3f30f990d18dc53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Adult</topic><topic>Anatomy & physiology</topic><topic>Beverages</topic><topic>Bicycling - physiology</topic><topic>Biological and medical sciences</topic><topic>Blood Glucose - drug effects</topic><topic>Carbohydrates</topic><topic>Dietary Carbohydrates - administration & dosage</topic><topic>Dietary Carbohydrates - metabolism</topic><topic>Dietary Carbohydrates - pharmacology</topic><topic>Double-Blind Method</topic><topic>Exercise</topic><topic>Exercise - physiology</topic><topic>Fats - metabolism</topic><topic>Fatty Acids, Nonesterified - blood</topic><topic>Feeding. Feeding behavior</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Glucose</topic><topic>Heart Rate - drug effects</topic><topic>Humans</topic><topic>Insulin - blood</topic><topic>Lactic Acid - blood</topic><topic>Male</topic><topic>Molecular Weight</topic><topic>Oxidation-Reduction - drug effects</topic><topic>Oxygen - metabolism</topic><topic>Time Factors</topic><topic>Triglycerides - administration & dosage</topic><topic>Triglycerides - chemistry</topic><topic>Triglycerides - pharmacology</topic><topic>Vertebrates: anatomy and physiology, studies on body, several organs or systems</topic><topic>Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Angus, Damien J</creatorcontrib><creatorcontrib>Hargreaves, Mark</creatorcontrib><creatorcontrib>Dancey, Jane</creatorcontrib><creatorcontrib>Febbraio, Mark A</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Physical Education Index</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of applied physiology (1985)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Angus, Damien J</au><au>Hargreaves, Mark</au><au>Dancey, Jane</au><au>Febbraio, Mark A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of carbohydrate or carbohydrate plus medium-chain triglyceride ingestion on cycling time trial performance</atitle><jtitle>Journal of applied physiology (1985)</jtitle><addtitle>J Appl Physiol (1985)</addtitle><date>2000-01-01</date><risdate>2000</risdate><volume>88</volume><issue>1</issue><spage>113</spage><epage>119</epage><pages>113-119</pages><issn>8750-7587</issn><eissn>1522-1601</eissn><coden>JAPHEV</coden><abstract>1 Exercise Physiology and Metabolism Laboratory,
Department of Physiology, The University of Melbourne, Parkville,
Victoria 3052; and 2 School of Health Sciences, Deakin
University, Burwood, Victoria 3125, Australia
This study examined the effectiveness of ingesting a
carbohydrate or carbohydrate + medium-chain triglycerides (MCT) on
metabolism and cycling performance. Eight endurance-trained men
[peak O 2 uptake = 4.71 ± 0.09 (SE) l/min]
completed 35 kJ/kg as quickly as possible [time trial (TT)]
while consuming 250 ml/15 min of either a 6% (wt/vol) carbohydrate
solution (C), a 6% carbohydrate + 4.2% MCT solution (C+M), or a sweet
placebo (P). Time to complete the set amount of work was reduced in
both C and C+M compared with P by 7 and 5%, respectively (C: 166 ± 7 min; C+M: 169 ± 7 min; P: 178 ± 11 min; P < 0.01). Plasma
glucose concentration was maintained at or above resting values
throughout both C and C+M trials but decreased ( P < 0.05) below resting values in P at the completion of the TT. The
estimated rate of carbohydrate oxidation was not different during the
first 90 min of exercise but thereafter was reduced ( P < 0.05) in P and was maintained in both C and C+M. These data demonstrate
that carbohydrate ingestion during exercise improves 100-km TT
performance compared with a sweet placebo, but the addition of MCT does
not provide any further performance enhancement.
endurance exercise; glucose</abstract><cop>Bethesda, MD</cop><pub>Am Physiological Soc</pub><pmid>10642370</pmid><doi>10.1152/jappl.2000.88.1.113</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 8750-7587 |
| ispartof | Journal of applied physiology (1985), 2000-01, Vol.88 (1), p.113-119 |
| issn | 8750-7587 1522-1601 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_18136651 |
| source | MEDLINE; American Physiological Society; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Adult Anatomy & physiology Beverages Bicycling - physiology Biological and medical sciences Blood Glucose - drug effects Carbohydrates Dietary Carbohydrates - administration & dosage Dietary Carbohydrates - metabolism Dietary Carbohydrates - pharmacology Double-Blind Method Exercise Exercise - physiology Fats - metabolism Fatty Acids, Nonesterified - blood Feeding. Feeding behavior Fundamental and applied biological sciences. Psychology Glucose Heart Rate - drug effects Humans Insulin - blood Lactic Acid - blood Male Molecular Weight Oxidation-Reduction - drug effects Oxygen - metabolism Time Factors Triglycerides - administration & dosage Triglycerides - chemistry Triglycerides - pharmacology Vertebrates: anatomy and physiology, studies on body, several organs or systems Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports |
| title | Effect of carbohydrate or carbohydrate plus medium-chain triglyceride ingestion on cycling time trial performance |
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