| Effect of milk protein addition to a carbohydrate-electrolyte rehydration solution ingested after exercise in the heat. | |
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MedLine Citation:
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PMID: 20875186 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The present study examined the effects of milk protein on rehydration after exercise in the heat, via the comparison of energy- and electrolyte content-matched carbohydrate and carbohydrate-milk protein solutions. Eight male subjects lost 1·9 (sd 0·2) % of their body mass by intermittent exercise in the heat and rehydrated with 150 % of their body mass loss with either a 65 g/l carbohydrate solution (trial C) or a 40 g/l carbohydrate, 25 g/l milk protein solution (trial CP). Urine samples were collected before and after exercise and for 4 h after rehydration. Total cumulative urine output after rehydration was greater for trial C (1212 (sd 310) ml) than for trial CP (931 (sd 254) ml) (P < 0·05), and total fluid retention over the study was greater after ingestion of drink CP (55 (sd 12) %) than that after ingestion of drink C (43 (sd 15) %) (P < 0·05). At the end of the study period, whole body net fluid balance (P < 0·05) was less negative for trial CP ( - 0·26 (sd 0·27) litres) than for trial C ( - 0·52 (sd 0·30) litres), and although net negative for both the trials, it was only significantly negative after ingestion of drink C (P < 0·05). The results of the present study suggest that when matched for energy density and fat content, as well as for Na and K concentration, and when ingested after exercise-induced dehydration, a carbohydrate-milk protein solution is better retained than a carbohydrate solution. These results suggest that gram-for-gram, milk protein is more effective at augmenting fluid retention than carbohydrate. |
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Authors:
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Lewis J James; David Clayton; Gethin H Evans |
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Publication Detail:
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Type: Journal Article Date: 2010-09-28 |
Journal Detail:
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Title: The British journal of nutrition Volume: 105 ISSN: 1475-2662 ISO Abbreviation: Br. J. Nutr. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0372547 Medline TA: Br J Nutr Country: England |
Other Details:
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Languages: eng Pagination: 393-9 Citation Subset: IM |
Affiliation:
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School of Science and Technology, Erasmus Darwin Building, Nottingham Trent University, Clifton Lane, Nottingham, Nottinghamshire NG11 8NS, UK. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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