Energy demands during a judo match and recovery

Abstract

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 (T 1 ) and three minutes (T 2 ), one hour (T 3 ), and 24 hours (T 4 ) 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 T 2 , 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 T 3 and had not returned to baseline 24 hours after the match. The levels of triglycerides, glycerol, and free fatty acids had increased significantly (p<0.05) after the match (T 2 ) but returned to baseline values within 24 hours. Concentrations of high density lipoprotein cholesterol and total cholesterol were significantly increased after the match. Conclusions: These results show that a judo match induces both protein and lipid metabolism. Carbohydrate availability, training adaptation, and metabolic stress may explain the requirement for these types of metabolism.

No Association Between ACTN3 R577X Polymorphism and Elite Judo Athletic Status

“…This is in line with research pointing to a relevant contribution of oxidative pathways, together with anaerobic metabolism, to the muscle energy output of a judo match and its recovery, 6 with elite judo players being powerful athletes but also having above-average endurance capacity. In fact, recent research showed higher frequency of the I allele and II genotype in the angiotensin-converting enzyme (ACE) gene (which theoretically would favor endurance performance) in elite Polish and Lithuanian judokas, suggesting that genetic predisposition for longer fighting is at least as important (if not more so) than genetic predispositions to speed or power.…”

“…5 Thus, the mean duration of a men's match is ~7 minutes, 4 and, although anaerobic metabolism is thought to be the primary energy source for this sport (eg, with mean plasma lactate concentrations of ~12 mmol/L at the end of a match), aerobic pathways (involving carbohydrate, as well as lipid and protein, metabolism) are also involved. 6 Furthermore, although maximal aerobic capacity (VO 2max ) is not a discriminatory variable in competitive performance, it is a valuable one; judokas with higher VO 2max values might have an advantage in combats lasting the maximal 10-minute duration allowed. 5 We determined ACTN3 R577X genotype and allele frequencies in the majority of all-time-best Spanish judo male athletes (n = 111, current age range 18-75 y, 57.7% still active).…”

Blood lactate level in Elite boy swimmers after lactate tolerance exercise test

“…This data was in line with the findings of Degoutte et al (Degoutte et al, 2003), who observed that lactate concentrations in blood were appeared to return to the baseline level within 24 hours. Also, in study conducted by Kantanista blood lactate decreased after the interruption of exercise (Kantanista et al, 2016).…”

Physiological Characteristics of Brazilian Jiu Jitsu and Judo as Compared To Muay Thai

“…A typical high-level judo match lasts 3 minutes, with 20-to 30-second periods of activity and 5-10 seconds of interruption, while a significant portion of a match lasts 3-4 minutes. 8 To be effective, judo techniques should be applied with accuracy, with strength, velocity and power. The short bursts of energy are supplied by anaerobic metabolism while the ability to sustain the intermittent work, as well as recovery, rely on aerobic metabolism.…”