Energy demands during a judo match and recovery

Objective: To assess energy demand during a judo match and the kinetics of recovery by measuring the metabolites of the oxypurine cascade, lipolytic activity, and glycolytic pathway. Methods: Venous blood samples were taken from 16 national judoists (mean (SEM) age 18.4 (1.6) years), before (T1) and...

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Bibliographic Details
Published in:British journal of sports medicine 2003-06, Vol.37 (3), p.245-249
Main Authors: Degoutte, F, Jouanel, P, Filaire, E
Format: Article
Language:English
Subjects:
adenine nucleotide catabolism
Adolescent
Adult
Ammonia - blood
Bioenergetics
blood lipids
Body fat
Carbohydrates
Creatinine - blood
Diet
Energy metabolism
Energy Metabolism - physiology
Exercise
Food
Glycerol
HDL-C
Heart rate
Heart Rate - physiology
high density lipoprotein fraction of cholesterol
Humans
Hypoxanthine - blood
Judo
Kinetics
Lactates - blood
LDL-C
Lipids - blood
low density lipoprotein fraction of cholesterol
Male
Martial arts
Martial Arts - physiology
Measurement
Metabolism
Original
Oxygen Consumption - physiology
Physiological aspects
Physiology
Plasma
Proteins
Requirements
Studies
substrates
Triglycerides
Urea - blood
Uric acid
Uric Acid - blood
very low density lipoprotein fraction of cholesterol
VLDL-C
Xanthine - blood
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Summary:Objective: To assess energy demand during a judo match and the kinetics of recovery by measuring the metabolites of the oxypurine cascade, lipolytic activity, and glycolytic pathway. Methods: Venous blood samples were taken from 16 national judoists (mean (SEM) age 18.4 (1.6) years), before (T1) and three minutes (T2), one hour (T3), and 24 hours (T4) after a match. A seven day diet record was used to evaluate nutrient intake. Results: Nutrient analysis indicated that these athletes followed a low carbohydrate diet. Plasma lactate concentration had increased to 12.3 (1.8) mmol/l at the end of the match. An increase in the levels of extracellular markers of muscle adenine nucleotide catabolism, urea, and creatinine was observed at T2, while uric acid levels remained unchanged. High concentrations of urea persisted for 24 hours during the recovery period. Ammonia, hypoxanthine, xanthine, and creatinine returned to control levels within the 24 hour recovery period. Uric acid concentrations rose from T3 and had not returned to baseline 24 hours after the match. The levels of triglycerides, glycerol, and free fatty acids had increased significantly (p
ISSN:0306-3674
1473-0480
DOI:10.1136/bjsm.37.3.245