Comparison of special judo fitness test and dynamic and isometric judo chin-up tests' performance and classificatory tables' development for cadet and junior athletes (2025)

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A special judo fitness test classificatory table

Fabricio Boscolo

2009

Background Judo is very physiological demanding sport, but there are no many physical fitness specific tests. One of the most used specific judo tests is the Special Judo Fitness Test (SJFT) proposed by Sterkowicz (1995). Although this test has been used by many coaches in different countries no classificatory table was found to classify the judo athletes according to their results. Thus, the aim of this work was to present a classificatory table for this test. Material/Methods: For this purpose 141 judo athletes (mean ±standard deviation: 21.3±4.5 years-old; 74.2±15.9 kg of body mass and 176.7±8.2 cm of height; judo ranking between 3 rd kyu and 3 rd dan) familiarized with the SJFT performed it once in order to provide data to establish a classificatory table. Results: After the analysis of data distribution a five scale table (20% for each classificatory category) was developed considering the variables used in the SJFT (number of throws, heart rate after and 1 min after the test and index). Conclusions: The classificatory table can help coaches using the SJFT to classify their athletes' level and to monitor their physical fitness progress.

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Proposal for the revision of the Special Fitness Test in judo

Wiesław Błach

Journal of Kinesiology and Exercise Sciences

Introduction: To assess the level of physical fitness among high-performance athletes, a number of tests are used, including a treadmill, cyclo-ergometer or other mechanical devices integrated with a sensitive power and work measurement system. Such studies, however, involve selected parts of the muscles of the upper or lower limbs, while the specific structure of the task in combat sports requires the work of the muscles with regard to the entire body. For this reason, a field test called Special Judo Fitness Test (SJFT) has long been used in judo. Performing this test requires the participation of 2 sparring partners (uke) with a body mass similar to the tested competitor. In small groups, this requirement may not always be met. In addition, the uke is required to be highly skilled in the safe technique of falling onto a mat (ukemi) in order to minimise the risk of injury. The aim of the work was to develop and validate a throw test with the use of dummies already available on the...

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Validity of judo-specific tests to assess neuromuscular performance of judo athletes

Ramdane Almansba

Sports Biomechanics, 2018

Uchi-komi Fitness Test (UFT) is a specific judo test that evaluates physiological fitness of judo athletes in similar conditions to judo matches. Neuromuscular parameters obtained by generic and judo-specific tests would aid to get more information about its criterion validity. This study aimed to analyse the relationship between UFT and shoulder external (PT EX) and internal (PT INT) rotation torque, handgrip strength (HGS) and vertical jumps (VJs) performance. The relationship between UFT and Judogi grip strength test (JGST) was also investigated. Eighteen male judo athletes participated in this study. Athletes performed neuromuscular tests (VJ, PT EX , PT INT and HGS) and judo-specific tests (JGST and UFT). Pearson's correlation was used with the level set at p < 0.05. Significant correlation was found between UFT and all VJ variables (r = 0.50-0.72, p < 0.004), UFT a + b (two first series of UFT) and PT EX (r = 0.49, p = 0.033), UFT and PT INT (r = 0.47, p = 0.044). Also, UFT was correlated to JGST (r = 0.50-0.72, p < 0.044, respectively). We conclude that muscle power of lower limbs, PT EX and PT INT was related to UFT. Strength-endurance in the upper limbs (JGST) was also related to the UFT performance.

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Specific exercise testing in judo athletes

Elena Pocecco

Archives of Budo, 2012

All-out exercise tests lasting the duration of a judo match, i.e., 5 minutes, regarding arm and leg performance have barely been introduced. We hypothesised that, besides body composition, arm and leg performance, derived from 5 minutes lasting all-out ergometric tests, would be of importance for success in judo competitions.

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Which Performance Tests Best Define the Special Judo Fitness Test Classification in Elite Judo Athletes?

Jožef Šimenko

Journal of Functional Morphology and Kinesiology

The normative values of the Special Judo Fitness Test (SJFT) are used to evaluate judo athletes, and the question arises of which performance tests from crucial motor abilities best define the SJFT classification in elite judo athletes. This study aimed to investigate the relationship between elite judo athletes’ physical performance and the evaluation using SJFT index norms. Nineteen judo athletes (11 females) (22.8 ± 2.5 years old) from the senior judo national team voluntarily participated in this study. Body composition, reaction time, balance, flexibility, agility, hand grip strength, 20 m sprint, vertical jump, SJFT, and Wingate tests were performed by athletes on four separate days at one-day intervals. Athletes were classified as regular and above (≥regular) or poor and below (≤poor) according to their SJFT index scores. Simple logistic regression analysis was used to evaluate this classification’s consistency with performance test results. Odds ratios (OR) and 95% confidenc...

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Special Judo Fitness Test Level and Anthropometric Profile of Elite Spanish Judo Athletes

raquel escobar

Journal of Strength and Conditioning Research, 2017

Casals, C, Huertas, JR, Franchini, E, Sterkowicz-Przybycień, K, Sterkowicz, S, Gutiérrez-García, C, and Escobar-Molina, R. Special judo fitness test level and anthropometric profile of elite spanish judo athletes. J Strength Cond Res 31(5): 1229–1235, 2017—The aim of this study was to determine the anthropometric variables that best predict Special Judo Fitness Test (SJFT) performance. In addition, anthropometric profiles of elite Spanish judo athletes were compared by sex and age category (seniors and juniors). In this cross-sectional study, a total of 51 (29 females) athletes from the Spanish National Judo Team were evaluated during a competitive period. All athletes performed the SJFT and underwent an anthropometric assessment through skinfold thickness measurements. Mann-Whitney comparisons by sex and age category showed that males had significantly higher muscle mass and lower fat mass than females (p &lt; 0.001), whereas juniors and seniors exhibited few differences in body co...

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Test and Re-Test Reliability of the Special Judo Fitness Test

Dušana Augustovičová

Acta Facultatis Educationis Physicae Universitatis Comenianae

Summary Background. When analyzing the available literature, we found differences and considerable variability in the Special Judo Fitness Test (SJFT) reliability methods. Problems and Aim. For this reason, we have set our goal to determine the reliability and measurement error of all parameters by SJFT. Methods. The research sample consisted of 15 judo athletes (17.13 ± 1.96 years, body height 174.4 ± 10.64 cm, body weight 72 ± 15.37 kg) who trained in judo on average 8.73 ± 2.12 years in two different Slovak judo clubs. The results were processed using interclass correlation analysis and measurement error percentage. Results. Our results indicate poor reliability for HR0 (α= 0.374, Err = 4.2 %) and moderate reliability for the following parameters: the number of throws in section A (α = 0.641, Err = 5.9 %), section B (α = 0.512, Err = 6.0 %), and section C (α = 0.644, Err = 5.9 %), respectively. Moderate reliability was also found for the total number of throws (α = 0.687, Err = 5...

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Correlation of anthropometric and bio-motor attributes with Special Judo Fitness Test in senior male judokas

Hamid Arazi

Problem and aim. Most of the preceding studies on SJFT have investigated the performance of various judokas in this test and less attention has been paid to correlation between specific judo actions and prominent attributes related to judo athletes' performance. The purpose of this study was to define the correlation between anthropometric and bio-motor attributes, and special judo fitness test. Methods. Fifty senior judokas (mean ± standard deviation: 20.75 ± 1.80 years old, 178 ± 4.20 cm of height and 21.32 ± 2.81 kg/m 2 of BMI) were assessed for some anthropometric and bio-motor variables, and also specific judo fitness level. Results. Height was in inverse relationship with SJFT (P<0.05). While, the same but a stronger relationship (P<0.01) was found regarding sitting height and fat free mass. Moreover, a significant direct correlation was observed between body fat percentage and SJFT. Similarly, lower body strength, vertical jump height and flexibility (P<0.05), and hand grip strength and anaerobic power (P<0.01) were in inverse relationship with SJFT index. In return, speed (P<0.01) and agility (P<0.05) were directly related to SJFT index. Conclusions. It seems that excellent performance in specific judo actions depends largely on muscularity and superiority in anaerobic metabolism because of its correlation with attributes such as fat free mass, strength, speed and anaerobic power.

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Physical fitness and anthropometrical differences between elite and non-elite judo players

Monica Takito

The objective of this study was to verify the differences between Elite (Brazilian National and International medallists) and Non-elite (nonmedallists in Brazilian National Tournaments) junior and senior judo players. For this purpose, the following tests and measurements were conducted: (a) skinfold thickness; (b) circumferences; (c) breadths; (d) upper body Wingate test; (e) Special Judo Fitness Test; (f) aerobic power and capacity; (h) Lactate after combat during active recovery (70% of velocity of anaerobic threshold) and passive recovery (rest); (i) Isometric hand grip strength. The groups were compared by means of an ANCOVA (covariates – age and weight) followed by a post-hoc Scheffé test (significance level=5%). Elite group presented better results than Non-elite group in the following variables (p&lt;0.05): circumferences (cm) -flexed arm, forearm, wrist and calf; breadths (cm) – femur and humerus; Wingate Test – Mean and Peak power; Special Judo Fitness Test – number of thr...

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A Novel Approach to Safe Special Fitness Testing in Judo Players

Zbigniew Obmiński

2021

Background: Measurements of physical fitness indices obtained in laboratory tests using an ergometer or a treadmill are very accurate, but they involve selected groups of muscles and do not reproduce the structure of the sport-specific exercise in judo. For this reason, researchers seek for the tests that use movements similar to the characteristic offensive techniques used during competitions (i.e. throwing). The most commonly recommended is the seoi-nage throwing test, known as SJFT (special judo fitness test).The aim of the study was to develop a new test in which uke is replaced by a dummy, in order to reduce the injury rate and ensure the safety of the participants.Methods: During the 3-week period, competitors from different weight classes performed at the beginning and then after the 2-week period one 1-minute series of continual dummy throws using the o-goshi technique and the seoi-nage technique. Post-exercise physiological responses (heart rate [HR] and blood lactate level...

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Comparison of special judo fitness test and dynamic and isometric judo chin-up tests' performance and classificatory tables' development for cadet and junior athletes (2025)
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