Postexercise Carbohydrate-Protein- Antioxidant Ingestion Decreases Plasma Creatine Kinase and Muscle Soreness

The authors investigated the effects of postexercise carbohydrate-protein-antioxidant (CHO+P+A) ingestion on plasma creatine kinase (CK), muscle soreness, and subsequent cross-country race performance. Twenty-three runners consumed 10 mL/kg body weight of CHO or CHO+P+A beverage immediately after ea...

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Bibliographic Details
Published in:International journal of sport nutrition and exercise metabolism 2007-02, Vol.17 (1), p.109-123
Main Authors: Luden, N.D, Saunders, M.J, Todd, M.K
Format: Article
Language:English
Subjects:
Adult
analgesic effect
antioxidants
Antioxidants - administration & dosage
athletes
athletic performance
beverages
blood chemistry
carbohydrate intake
college students
creatine kinase
Creatine Kinase - blood
Cross-Over Studies
Dietary Carbohydrates - administration & dosage
Dietary Proteins - administration & dosage
Dietary Supplements
dosage
ergogenic aids
Female
Humans
Male
muscle fatigue
Muscle, Skeletal - enzymology
Muscle, Skeletal - injuries
Muscle, Skeletal - physiology
muscles
Nutritional Physiological Phenomena
Oxygen Consumption
pain
protein intake
running
Running - physiology
sports nutrition
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Summary:The authors investigated the effects of postexercise carbohydrate-protein-antioxidant (CHO+P+A) ingestion on plasma creatine kinase (CK), muscle soreness, and subsequent cross-country race performance. Twenty-three runners consumed 10 mL/kg body weight of CHO or CHO+P+A beverage immediately after each training session for 6 d before a cross-country race. After a 21-d washout period, subjects repeated the protocol with the alternate beverage. Postintervention CK (223.21 ± 160.71 U/L; 307.3 ± 312.9 U/L) and soreness (medians = 1.0, 2.0) were significantly lower after CHO+P+A intervention than after CHO, despite no differences in baseline measures. There were no overall differences in running performance after CHO and CHO+P+A interventions. There were, however, significant correlations between treatment differences and running mileage, with higher mileage runners having trends toward improved attenuations in CK and race performance after CHO+P+A intervention than lower mileage runners. We conclude that muscle damage incurred during training was attenuated with postexercise CHO+P+A ingestion, which could lead to performance improvements in high-mileage runners.
ISSN:1526-484X
1543-2742
DOI:10.1123/ijsnem.17.1.109