Document Detail


Acute effects of chocolate milk and a commercial recovery beverage on postexercise recovery indices and endurance cycling performance.
MedLine Citation:
PMID:  20029509     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To maximize training quality, athletes have sought nutritional supplements that optimize recovery. This study compared chocolate milk (CHOC) with a carbohydrate replacement beverage (CRB) as a recovery aid after intense exercise, regarding performance and muscle damage markers in trained cyclists. Ten regional-level cyclists and triathletes (maximal oxygen uptake 55.2 +/- 7.2 mL.kg(-1).min(-1)) completed a high-intensity intermittent exercise protocol, then 15-18 h later performed a performance trial at 85% of maximal oxygen uptake to exhaustion. Participants consumed 1.0 g carbohydrate.kg-1.h-1 of a randomly assigned isocaloric beverage (CHOC or CRB) after the first high-intensity intermittent exercise session. The same protocol was repeated 1 week later with the other beverage. A 1-way repeated measures analysis of variance revealed no significant difference (p = 0.91) between trials for time to exhaustion at 85% of maximal oxygen uptake (CHOC 13 +/- 10.2 min, CRB 13.5 +/- 8.9 min). The change in creatine kinase (CK) was significantly (p < 0.05) greater in the CRB trial than in the CHOC trial (increase CHOC 27.9 +/- 134.8 U.L(-1), CRB 211.9 +/- 192.5 U.L(-1)), with differences not significant for CK levels before the second exercise session (CHOC 394.8 +/- 166.1 U.L(-1), CRB 489.1 +/- 264.4 U.L(-1)) between the 2 trials. These findings indicate no difference between CHOC and this commercial beverage as potential recovery aids for cyclists between intense workouts.
Authors:
Kelly Pritchett; Philip Bishop; Robert Pritchett; Matt Green; Charlie Katica
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Applied physiology, nutrition, and metabolism = Physiologie appliqu?e, nutrition et m?tabolisme     Volume:  34     ISSN:  1715-5312     ISO Abbreviation:  Appl Physiol Nutr Metab     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-12-23     Completed Date:  2010-04-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101264333     Medline TA:  Appl Physiol Nutr Metab     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  1017-22     Citation Subset:  IM    
Affiliation:
Department of Health, Human Performance, and Nutrition, Central Washington University, Ellensburg, WA 98926, USA. KKerr@cwu.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Animals
Athletic Performance / physiology*
Beverages*
Bicycling
Cacao*
Creatine Kinase / blood
Cross-Over Studies
Diet Records
Diet Surveys
Dietary Carbohydrates*
Dietary Supplements
Exercise Test
Humans
Milk*
Muscle Fatigue*
Oxygen Consumption
Physical Endurance / physiology*
Physical Fitness / physiology
Young Adult
Chemical
Reg. No./Substance:
0/Dietary Carbohydrates; EC 2.7.3.2/Creatine Kinase

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


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