Physical fitness and maximum number of all-out hikidashi uchi-komi in judo practitioners

Aim. The aim of this paper was to test the sensitivity and reproducibility of a high-intensity anaerobic test with maximum basic judo technique repetitions (hikidashi uchi-komi, HD), considering sex and different levels of proficiency. Additionally, to correlate the performance in HD tests with general physical fitness of judo players. Methods. Two cross-sectional studies were conducted with independent samples and places of practice. In them, the HD in 20 s, 30s and 40s (HD20, HD30 and HD40, respectively), as well as evaluation of vertical jump, impulsion of upper limbs, suspension on the rope, sit-up and push-ups tests have been applied. Results. the Intraclass Correlation Coefficient (ICC) values were 0.93; 0.87 and 0.71 for HD20, HD30, HD40, respectively. In addition, the results of advanced athletes were statistically superior to that of beginners (HD20: 24 +/- 4 and 22 +/- 2; HD30: 37 +/- 5.3 and 34 +/- 4.1; HD40: 50 +/- 8.2 and 46 +/- 5.5 repetitions with P=0.03 for all tests). Furthermore, the HD tests correlated with physical fitness. Discussion. The HD20, HD30 and HD40, seek to: 1) evaluate the anaerobic component of Judo athletes and 2) offer a reference for prescribing high-intensity interval training. They are advantageous because: 1) a larger number of athletes can perform the tests at the same time; 2) it needs small space for its execution, 3) displays execution times similar to those seen during periods of efforts in the matches; 4) have low technical complexity and 5) are rather used as means for physical fitness improvement for judo athletes. Conclusion. The all-out hikidashi uchi-komi tests are reproducible, able to discriminate judo practitioners by competitive levels, time of practice and sex, and show positive correlation with physical fitness measures.