Impact of time-of-day on judo-specific performance

In judo tournaments, matches for each weight category are held on the same day and athletes competing at finals have to compete different times of day. This study aimed investigate effect time-of-day specific performance changes in physiological load following performance. Fourteen male (age 19.1±1.4 years) voluntarily participated study. At 1st visit, anthropometrical measurements familiarization procedures were conducted athletes’ chronotype was determined. Athletes performed Special Judo Fitness Test (SJFT) during 2nd 3rd visits. randomly two consecutive SJFTs with 15 min intervals 10:00h, which is official start time matches, 18:00h when start. During SJFT applications, heart rate (HR), blood lactate (bLA), body temperature perceived exertion (RPE) monitored. The total throw numbers (F1, 13= 1.32, p=0.27) index 0.30, p=0.59) not between morning evening. There similar bLA (F4, 52=0.66, p=0.63), RPE 13=1.42, p=0.26) (F1.4, 18.0=1.18, p=0.31) measured before after tests. However, HR evening higher compared measurement all 13=10.28, p=0.01), but there no difference throws (F3.8, 48.8=0.49, p=0.74). conclusion, did affect as well variables athletes.