Strength-Power Performance of Visually Impaired Paralympic and Olympic Judo Athletes From the Brazilian National Team

2017 ◽  
Vol 31 (3) ◽  
pp. 743-749 ◽  
Author(s):  
Irineu Loturco ◽  
Fábio Y. Nakamura ◽  
Ciro Winckler ◽  
Jaime R. Bragança ◽  
Roger A. da Fonseca ◽  
...  
Keyword(s):  
Visually Impaired ◽  
Power Performance ◽  
National Team ◽  
Judo Athletes

scholarly journals Performance Changes of Elite Paralympic Judo Athletes During a Paralympic Games Cycle: A Case Study with the Brazilian National Team

2017 ◽  
Vol 60 (1) ◽  
pp. 217-224 ◽  
Author(s):  
Irineu Loturco ◽  
Lucas A. Pereira ◽  
Ciro Winckler ◽  
Jaime R. Bragança ◽  
Roger A. da Fonseca ◽  
...  
Keyword(s):  
Upper Limb ◽  
Muscle Power ◽  
Repeated Measurements ◽  
Performance Assessments ◽  
Power Performance ◽  
World Championship ◽  
National Team ◽  
The World ◽  
Judo Athletes ◽  
Paralympic Games

Abstract The aim of this study was to describe the variations in power performance of elite Paralympic judo athletes across three consecutive training cycles of preparation for the ParaPan American Games, the World Championship and the Paralympic Games. Eleven Paralympic judokas from the Brazilian National team participated in this study. They were repeatedly assessed using squat and countermovement jumps, mean propulsive power (MPP) in the jump-squat (JS), the bench press and prone bench pull at several moments of the preparation. Training supervision based on the optimum power zone (range of loads where power production is maximized) was provided in the final cycle, prior to the Paralympic Games. Magnitude-based inference was used to compare the repeated measurements of power performance. Lower and upper limb muscle power gradually increased throughout the cycles; however, the best results in all exercises were observed prior to the Paralympic Games, during which the team won four silver medals. As an illustration, prior to participation in the Paralympic Games the MPP in the JS was likely to very likely higher than prior to the World Championship (effect size [ES] = 0.77) and ParaPan American Games (ES = 0.53), and in January and March 2016 (ES = 0.98 and 0.92, respectively; months preceding the Paralympic Games). Power performance assessments can provide information about the evolution of Paralympic judokas, and training at the optimum power zone seems to constitute an effective method to improve lower and upper limb power in these athletes.

scholarly journals Isokinetic Profile of Elite Serbian Female Judoists

2021 ◽  
Vol 18 (13) ◽  
pp. 6988
Author(s):  
Wieslaw Blach ◽  
Miodrag Drapsin ◽  
Nemanja Lakicevic ◽  
Antonino Bianco ◽  
Tamara Gavrilovic ◽  
...  
Keyword(s):  
Knee Extensors ◽  
Training Experience ◽  
Lateral Asymmetry ◽  
National Team ◽  
Significant Difference ◽  
Judo Athletes ◽  
Muscle Groups ◽  
Torque Values ◽  
Training Modalities ◽  
Knee Flexors

Elite judo athletes undergo vigorous training to achieve outstanding results. In pursuit of achieving competitive success, the occurrence of injuries amongst judo athletes is not rare. The study aimed to perform a knee flexors and extensors isokinetic torque analysis in elite female judo athletes. Fifty-eight elite female judo athletes of the Serbian national team (21.02 ± 3.11 years; 62.36 ± 11.91 kg, 165.04 ± 10.24 cm, training experience 12.72 ± 2.98 years) volunteered to participate in this study. The range of motion (ROM) was set at 90⁰. Testing was performed in a concentric–concentric mode for the testing speed of 60 ⁰/s. Five maximal voluntary contractions of knee extensors and knee flexors muscle groups were measured for both legs. The obtained data showed a statistically significant difference in absolute torque values among different categories as heavier athletes demonstrated higher values. Post hoc analysis showed a significant difference between weight categories, as heavier athletes demonstrated higher values, while no significant differences in normalized torque values for different weight categories were observed. The implementation of new elements and training modalities may improve performance and prevent lateral asymmetry, thus reducing the risk of injury.

scholarly journals Evaluation of some respiratory functions of Kyrgyz National Team Athletes before 2016 Summer Olympic Games

2018 ◽  
Vol 15 (3) ◽  
pp. 1711
Author(s):  
Bilal Demirhan ◽  
Dciparkul Abdırahmanova ◽  
Kanat Canuzakov ◽  
Serdar Geri
Keyword(s):  
Female Athletes ◽  
Olympic Games ◽  
Male Athletes ◽  
National Team ◽  
Greco Roman ◽  
Preparation Stage ◽  
Package Program ◽  
Judo Athletes ◽  
One Way Anova ◽  
Better Than

In this study, some respiratory functions of athletes from four different sport branches who constitute Kyrgyzstan National Team have been examined. To research, 9 Greco-Roman style wrestlers (24±4,5years), 10 freestyle wrestlers (22,10±3,21 years), 8 judoists (23,6±1,89 years), 8 male athletes (22,29±2.87 years) and 3 female athletes (21.67±2.08 years) totally 35 male and 3 female national athletes have been included. Forced vital capacities (FVC), forced ventilation volumes (FEV1) and peak expiratory flow (PEF) which connected the respiratory levels of the athletes have been measured in preparation stage before 2016 Summer Olympic Games. By being performed istatistical evaluation by SPSS 21.0, it was usedthe computer package program. “One Way ANOVA” test an identifying the differences between the groups and the differences at (P<0,05) level have been accepted as significant. FVC values taken from Judoists were similar to those of male athletes (p>0,05) and significantly higher than other branches (p<0,05). FVC levels of wrestling and athletic athletes reflected similar results (p>0,05). When PEF levels examined, the results of judo and male athletes have been found statistically similar (p>0,05). PEF scores of Greco-Roman wrestling, freestyle wrestling and female athletes have not been found statistically different (p>0,05). FEV1 results of the judoists have been found similar to those of the Greco-Roman style wrestlers (p>0,05) while these results have been found significantly higher than the results of freestyle wrestling and athletic athletes (p<0,05). As a result, Judo athletes' FVC, PEF and FEV1 levels have been found better than other branches involved in the study.

scholarly journals Critical Thinking and Problem-Solving Skills of Visually Impaired Female National Judo Team Athletes

2019 ◽  
Vol 7 (3S) ◽  
pp. 8
Author(s):  
Sengul Demiral
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Visually Impaired ◽  
High Performance ◽  
Problem Solving Skills ◽  
Critical Thinking Disposition ◽  
National Team ◽  
Total Problem ◽  
Significant Difference ◽  
Thinking Disposition

A high level of critical thinking and problem-solving skills in visually impaired female national judo team athletes is an important factor in increasing their performance and for their high performance. The aim of this study was to examine critical thinking and problem-solving skills of visually impaired female national judo team athletes. The sample of the study was composed of visually impaired female athletes (n=15) in 2015 national team. A Personal Information Form, the California Critical Thinking Disposition Inventory and the Problem Solving Inventory were used as data collection tools. The data obtained in this study were analyzed using SPSS 17 software. Evaluation of the data analysis revealed that there was no statistically significant difference among groups in total Problem Solving Inventory and Critical Thinking Disposition Inventory scores in terms of age group or age of starting judo (p>0.05). There was no statistically significant relationship between total problem-solving and total critical thinking disposition scores of athletes (p>0.05). As a result, judo coaches are thought to play an important role in the development of strategies for increasing athletes’ problem-solving and critical thinking skills and in the development of their sporting performance, particularly in the development of high performance.

scholarly journals Comparison of balance skills of visually impaired and non-impaired judo athletes and goalball/futsal players

2018 ◽  
Vol 22 (6) ◽  
pp. 292-297
Author(s):  
D. Aras ◽  
Ö. Güler ◽  
M. Gülü ◽  
F. Akça ◽  
E. Arslan ◽  
...  
Keyword(s):  
Visual System ◽  
Fall Risk ◽  
Visually Impaired ◽  
Dynamic Balance ◽  
Eyes Closed ◽  
Significant Difference ◽  
Overall Stability ◽  
Eyes Open ◽  
Judo Athletes ◽  
Risk Parameters

Background and Study Aim: In order to sustain the performance in sport, it is necessary to constantly struggle with the factors which disrupt balance, and maintain the desired balance. The purpose of the present study is to compare and demonstrate the effects of sight grade on static and dynamic balance, and fall risk parameters in visually impaired and non-impaired judo athletes and goalball/futsal players. Material and Methods: A total of 26 male athletes (13 Judo, 13 Goalball/Futsal) participated in the study voluntarily. The participants performed two balance tests as Overall Stability Test and Fall Risk Test with the eyes open and eyes closed. The parameters observed were static and dynamic overall stability, anterior-posterior, and medial-lateral index, and fall risk. Results: According to the findings, there were significant differences in all the parameters with the eyes open and eyes closed conditions in visually non-impaired athletes regardless of the sport branch, while visually impaired athletes showed no significant difference. However, more loss of balance was observed in all the parameters for visually impaired athletes. Conclusions: These findings show that visual system has a crucial role on balance, and athletes with visually impaired have more advanced vestibular system and proprioceptive senses to maintain their balance. It was also understood that visually non-impaired athletes tend to show more deteriorated balance level when their eyes were closed. Future studies could examine the vestibular and proprioceptive senses besides visual system to provide information about how balance is affected from other systems.

scholarly journals FREQUENCY OF INJURIES AMONG ELITE BULGARIAN ATHLETES

2019 ◽  
Vol 17 (Suppl.1) ◽  
pp. 868-872
Author(s):  
Anna Nikolova
Keyword(s):  
Focus Group ◽  
Spiritual Development ◽  
Direct Contact ◽  
East Asian ◽  
Severe Injuries ◽  
Future Studies ◽  
National Team ◽  
Martial Art ◽  
Judo Athletes ◽  
Small Focus

Judo is martial art,which philosophy is very closely tied with its east-asian roots and it focuses on the contestant’s physical and spiritual development. The aim of this study is to investigate the incidence of traumas in elite judo athletes from the Bulgarian national team, in a retrospective manner throughout their careers as athletes. A survey was conducted among 37 athletes from the Bulgarian national judo team. All competitors have received at least one injury during their competitive career. These are sprains, strains and contusions. Most of the traumas occur during training. The severe injuries occur during competition and in general are caused from the direct contact with the opponent. The present study has limitations such as the small focus group size. Thus suggested future studies involving other judo competitors, as well as coaches and judges. It’s interesting to recognize their opinion and to compare it with that of the athletes. That will help to propose strategies for prevention of injuries.

scholarly journals The Effect of Neurofeedback Training on the Visual Processing Efficiency in Judo Athletes

2020 ◽  
Vol 71 (1) ◽  
pp. 219-227 ◽  
Author(s):  
Adam Maszczyk ◽  
Paweł Dobrakowski ◽  
Magdalena Nitychoruk ◽  
Marcin Żak ◽  
Magdalena Kowalczyk ◽  
...  
Keyword(s):  
Visual Processing ◽  
Test System ◽  
Control Group ◽  
Processing Efficiency ◽  
Wave Amplification ◽  
National Team ◽  
Theta Wave ◽  
Computer Based ◽  
Judo Athletes ◽  
Active Channels

AbstractThis study aimed to analyse the effect of neurofeedback (NFB) training based on beta-wave amplification and theta-wave inhibition on the visual processing efficiency of judo athletes. The study examined 12 male athletes from the national team of the Polish Judo Association. Participants were divided into the experimental (EG, n = 6) and the control group (CG, n = 6). The NFB training protocol was performed and recorded using a Deymed Truscan system with 24 active channels. The effect of NFB training was examined by computer-based simple and complex reaction tests and selected tests of the Vienna Test System (VST). One – way ANOVA showed statistically significant differences between the CG and the EG in theta and beta values after the first and the second cycle of training. There were statistically significant differences between the CG and the EG in the results of reaction speed tests after individual cycles of training. The highest reduction in simple reaction time was obtained after the second training cycle, when training was performed every second day and lasted four minutes.

Rapid weight loss in visually impaired judo athletes: Prevalence, magnitude, and methods

2020 ◽  
pp. 026461962096769
Author(s):  
Rafael L Kons ◽  
Rodrigo G Gheller ◽  
Filipe E Costa ◽  
Daniele Detanico
Keyword(s):  
Weight Loss ◽  
Level Set ◽  
Visually Impaired ◽  
T Test ◽  
Rapid Weight Loss ◽  
Significance Level ◽  
Validated Questionnaire ◽  
Judo Athletes ◽  
Males And Females

The aim of this study was to determine the prevalence, magnitude, and methods of rapid weight loss (RWL) in visually impaired (VI) judo athletes, and compare these aspects between males and females. Thirty VI judo athletes (20 men and 10 women) completed a validated questionnaire to assess information about the magnitude and methods of RWL. Simple frequency was used to describe the influence and methods in all athletes and according to sex. Moreover, the t test was used to compare the variables between the sexes with the significance level set at p < .05. The main results showed that most VI judo athletes (67%) lost weight to compete. Most methods included gradual dieting (40%) and increased exercise volume (33%). The judo coach/ sensei was the person who most influenced the athletes in RWL (45%). There were no significant differences between the sexes regarding the RWL magnitude and methods used. As concluded, most VI judo athletes lost weight to compete, but the interval to reduce weight seemed slightly longer than it usually occurs in RWL. Gradual dieting and increased exercise volume were the most frequently used methods to lose weight, without any differences between males and females.

scholarly journals Effects of acute ingestion of caffeinated chewing gum on performance in elite judo athletes

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Aleksandra Filip-Stachnik ◽  
Robert Krawczyk ◽  
Michal Krzysztofik ◽  
Agata Rzeszutko-Belzowska ◽  
Marcin Dornowski ◽  
...  
Keyword(s):  
Body Mass ◽  
Perceived Exertion ◽  
Rating Of Perceived Exertion ◽  
Chewing Gum ◽  
National Team ◽  
Fitness Test ◽  
Positive Effects ◽  
Chewing Gums ◽  
Acute Ingestion ◽  
Judo Athletes

Abstract Purpose Previous investigations have found positive effects of acute ingestion of capsules containing 4-to-9 mg of caffeine per kg of body mass on several aspects of judo performance. However, no previous investigation has tested the effectiveness of caffeinated chewing gum as the form of caffeine administration for judoists. The main goal of this study was to assess the effect of acute ingestion of a caffeinated chewing gum on the results of the special judo fitness test (SJFT). Methods Nine male elite judo athletes of the Polish national team (23.7 ± 4.4 years, body mass: 73.5 ± 7.4 kg) participated in a randomized, crossover, placebo-controlled and double-blind experiment. Participants were moderate caffeine consumers (3.1 mg/kg/day). Each athlete performed three identical experimental sessions after: (a) ingestion of two non-caffeinated chewing gums (P + P); (b) a caffeinated chewing gum and a placebo chewing gum (C + P; ~2.7 mg/kg); (c) two caffeinated chewing gums (C + C; ~5.4 mg/kg). Each gum was ingested 15 min before performing two Special Judo Fitness Test (SJFT) which were separated by 4 min of combat activity. Results The total number of throws was not different between P + P, C + P, and C + C (59.66 ± 4.15, 62.22 ± 4.32, 60.22 ± 4.08 throws, respectively; p = 0.41). A two-way repeated measures ANOVA indicated no significant substance × time interaction effect as well as no main effect of caffeine for SJFT performance, SJFT index, blood lactate concentration, heart rate or rating of perceived exertion. Conclusions The results of the current study indicate that the use of caffeinated chewing gum in a dose up to 5.4 mg/kg of caffeine did not increase performance during repeated SJFTs.

Sign in / Sign up

Export Citation Format

Share Document