Document Detail


Effects of milk ingestion on prolonged exercise capacity in young, healthy men.
MedLine Citation:
PMID:  18328410     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The effects of fluid intake during prolonged exercise have been extensively studied but at present there exists little information on the effects of milk-based drinks on the response to prolonged exercise. Thus, the purpose of this study was to investigate the effects of milk-based drinks on exercise capacity. METHODS: Eight healthy males (age 24 +/- 4 y, height 1.76 +/- 0.04 m, mass 68.9 +/- 9.5 kg, body fat 12.5 +/- 2.4%, peak oxygen consumption 4.3 +/- 0.6 L/min) exercised to volitional exhaustion at 70% peak oxygen consumption on four occasions. Subjects ingested 1.5 mL/kg body mass of plain water, a carbohydrate-electrolyte solution, low-fat (0.1%) milk, or low-fat (0.1%) milk with added glucose before and every 10 min during exercise. The effect of the drink on exercise capacity and the cardiovascular, metabolic, and thermoregulatory responses to prolonged exercise were examined. RESULTS: Exercise time to exhaustion was not significantly influenced by the drink ingested (P = 0.19), but there was a tendency for subjects to exercise longer when the carbohydrate-electrolyte (110.6, range 82.0-222.7 min), milk (103.3, range 85.7-228.5 min), or milk plus glucose (102.8, range 74.3-167.1 min) was ingested compared with water (93.3, range 82.4-192.3 min). The solution ingested did not influence the cardiovascular, metabolic, or thermoregulatory response to exercise. CONCLUSION: The results of this study suggest that although the low-fat milk-based fluids did not enhance exercise capacity over that seen with the ingestion of plain water, the effect was comparable to that observed with a carbohydrate-electrolyte beverage.
Authors:
Jason K W Lee; Ronald J Maughan; Susan M Shirreffs; Phillip Watson
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Nutrition (Burbank, Los Angeles County, Calif.)     Volume:  24     ISSN:  0899-9007     ISO Abbreviation:  Nutrition     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-10     Completed Date:  2008-06-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802712     Medline TA:  Nutrition     Country:  United States    
Other Details:
Languages:  eng     Pagination:  340-7     Citation Subset:  IM    
Affiliation:
School of Sport and Exercise Sciences, Loughborough University, Loughborough, United Kingdom.
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MeSH Terms
Descriptor/Qualifier:
Adult
Animals
Beverages
Body Temperature Regulation / drug effects,  physiology
Cross-Over Studies
Electrolytes / pharmacology*
Glucose / pharmacology*
Humans
Male
Milk*
Oxygen Consumption / drug effects*,  physiology
Physical Endurance / drug effects*,  physiology
Time Factors
Water / pharmacology
Water-Electrolyte Balance / drug effects,  physiology
Chemical
Reg. No./Substance:
0/Electrolytes; 50-99-7/Glucose; 7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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