Source:http://linkedlifedata.com/resource/pubmed/id/18936219
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
2008-10-21
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pubmed:abstractText |
We investigated the effect of carbohydrate and protein hydrolysate ingestion on whole-body and muscle protein synthesis during a combined endurance and resistance exercise session and subsequent overnight recovery. Twenty healthy men were studied in the evening after consuming a standardized diet throughout the day. Subjects participated in a 2-h exercise session during which beverages containing both carbohydrate (0.15 g x kg(-1) x h(-1)) and a protein hydrolysate (0.15 g x kg(-1) x h(-1)) (C+P, n = 10) or water only (W, n = 10) were ingested. Participants consumed 2 additional beverages during early recovery and remained overnight at the hospital. Continuous i.v. infusions with L-[ring-(13)C(6)]-phenylalanine and L-[ring-(2)H(2)]-tyrosine were applied and blood and muscle samples were collected to assess whole-body and muscle protein synthesis rates. During exercise, whole-body and muscle protein synthesis rates increased by 29 and 48% with protein and carbohydrate coingestion (P < 0.05). Fractional synthetic rates during exercise were 0.083 +/- 0.011%/h in the C+P group and 0.056 +/- 0.003%/h in the W group, (P < 0.05). During subsequent overnight recovery, whole-body protein synthesis was 19% greater in the C+P group than in the W group (P < 0.05). However, mean muscle protein synthesis rates during 9 h of overnight recovery did not differ between groups and were 0.056 +/- 0.004%/h in the C+P group and 0.057 +/- 0.004%/h in the W group (P = 0.89). We conclude that, even in a fed state, protein and carbohydrate supplementation stimulates muscle protein synthesis during exercise. Ingestion of protein with carbohydrate during and immediately after exercise improves whole-body protein synthesis but does not further augment muscle protein synthesis rates during 9 h of subsequent overnight recovery.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1541-6100
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
138
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2198-204
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pubmed:meshHeading |
pubmed-meshheading:18936219-Carbohydrates,
pubmed-meshheading:18936219-Dietary Supplements,
pubmed-meshheading:18936219-Exercise,
pubmed-meshheading:18936219-Gene Expression Regulation,
pubmed-meshheading:18936219-Humans,
pubmed-meshheading:18936219-Male,
pubmed-meshheading:18936219-Muscle, Skeletal,
pubmed-meshheading:18936219-Muscle Proteins,
pubmed-meshheading:18936219-Protein Hydrolysates
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pubmed:year |
2008
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pubmed:articleTitle |
Coingestion of carbohydrate and protein hydrolysate stimulates muscle protein synthesis during exercise in young men, with no further increase during subsequent overnight recovery.
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pubmed:affiliation |
Department of Movement Sciences, Nutrition and Toxicology Research Institute Maastricht, Maastricht University, 6200 MD Maastricht, The Netherlands. milou.beelen@bw.unimaas.nl
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pubmed:publicationType |
Journal Article,
Randomized Controlled Trial
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