Rafael Lima Kons
Dados Biográficos
| ID | 3750082 |
|---|---|
| NOME | Rafael Lima Kons |
| PRENOMES | Rafael Lima |
| SOBRENOME | Kons |
| ASSINATURA | KONS R L |
| AFILIAÇÕES | Universidade Federal da Bahia |
| ORCID | 0000-0003-1615-5464 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 11 |
| TOTAL DE CITAÇÕES | 0 |
| OBRAS COMO AUTOR | 11 |
| OBRAS COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2021 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 0 |
Sex-based differences in penalty situations and shido types considering when the contest ends in elite judo
This study aimed to ascertain whether penalty situations and the types of shido are associated with the sex, regardless of when the contest ends, whether penalty situations and the types of shido are associated with when the contest ends, and whether this association is influenced by sex. Data from 2340 contests (3178 penalties) from the 2018, 2019, and 2021 World Judo Championships were analyzed. Chi-square tests with standardized residuals and …
Behavioral strategies in critical moments in judo for athletes with visual impairments
This study aimed to investigate the behavioral strategies employed during critical moments of judo matches by athletes with visual impairments, comparing performance across sport classes (J1 and J2), sexes, and weight categories at the Paris 2024 Paralympic Games. A descriptive time-motion analysis was conducted using video footage from 195 official matches, of which 93 featured critical moments, defined as situations in the final 60 seconds wher…
Competing with greater impairment
This study examined the age distribution of Paralympic athletes with high support needs at the Paris 2024 Paralympic Games, analyzing differences according to sex, competitive achievement, and discipline. A total of 1,263 athletes from eight individual sports were included. Between-group comparisons were conducted using the Mann–Whitney U and the Kruskal–Wallis test with Bonferroni post hoc , while Chi-square tests assessed associations between a…
Prediction of on-water performance in outrigger canoeing using laboratory tests
The relationship between laboratory-based ergometer performance, body size, and on-water outrigger canoe (OC) racing remains unclear. This study examined associations between anthropometric characteristics, ergometer-derived performance, and on-water endurance performance in OC athletes using a sex-specific approach. Competitive paddlers (22 males and 16 females) completed anthropometric assessments, an incremental test, a 1000-m time trial, and …
Age distributions in Paralympic Games Paris 2024
This study aimed to quantify the age distributions of Para athletes competing in the Paris 2024 Paralympic Games across 13 individual disciplines. A total of 5,540 athletes (52.2% male, 47.8% female) participated, with ages calculated at competition. The analysis examined differences by discipline, sex, and competitive achievement (medallist vs. non-medallist). The statistical analyses included the Kruskal-Wallis test followed by Mann-Whitney U p…
Effective transition from standing to groundwork combat
Judo for athletes with visual impairments (VI judo) requires constant adaptation of technical and strategic skills. The transition from standing to groundwork combat ( tachi-waza to ne-waza ) is a key phase that impacts match outcomes. VI judo athletes are classified into two groups: J1 (total blindness) and J2 (partially sighted), each facing distinct challenges. This study examined the effective transitions (those that resulted in scoring actio…
Tracking the development of technical-tactical skills in judo athletes with visual impairments over four Paralympic cycles (2012-2024)
Judo performance is inherently complex due to the dynamic interplay of various factors influencing technique execution. This retrospective cohort study examined data on the technical-tactical performance of judo athletes with visual impairments across four Paralympic cycles (London 2012, Rio 2016, Tokyo 2020+1, and Paris 2024), categorized by sex (male and female), using a motor-technical classification system. Data from 718 matches and 1,028 tec…
The penalties and scores by events, to predict victory and defeat according to when the contest ends in elite judo contests
The main aim of this study was to ascertain whether the victory and defeat in the different types of the judo contest, in the elite male and female divisions, are associated to the occurrence of the penalties and scores of the first three events (changes in the scoreboard -either penalty or score-) of them. 2340 contests of the 2018, 2019 and 2021 World Judo Championships were analysed. The Pearson’s chi-squared test expressed that [1] shido-1 in…
Participation in the International Judo Federation World Tour competitions and performance in Tokyo Olympic Games
Introduction The International Judo Federation introduced a ranking system in 2009 that determines top athletes for the Olympic Games and seeds them in competitions. Previous research indicated that this ranking list and past performances predicted 19%–27% of performance in the Olympic Games and World Championships. However, due to the COVID-19 pandemic, the relationship between Judo World Tour competitions and Olympic Games performance may have …
More time for judo matches? Analysis of type of techniques, time, scores, and penalties in the Tokyo 2020 Olympic Games
This study aimed to analyze the distribution of judo matches in the Tokyo 2020 Olympic Games, considering matches in the regular duration (≤4 min) and during the extra time (the golden score) according to sex, scores, penalties, phases of competition, weight categories, and judo techniques. The data were extracted from the Official Results Books of the Olympic Games in Tokyo 2020. The combats were divided in matches that were finished in the regu…
Body Size Measurements and Physical Performance of Youth Female Judo Athletes with Differing Menarcheal Status
Purpose: To compare body size measurements and physical performance among female youth judo athletes with differing menarcheal status and to identify indicators of physical performance in post-menarcheal girls. Methods: Nineteen young female judo athletes (age 13.9 ± 2.3 years) were divided into a pre-menarche ( n = 7) and a post-menarche ( n = 12) group. The athletes were evaluated through neuromuscular tests, including standing long jump (SLJ),…
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Body Size Measurements and Physical Performance of Youth Female Judo Athletes with Differing Menarcheal Status
Purpose: To compare body size measurements and physical performance among female youth judo athletes with differing menarcheal status and to identify indicators of physical performance in post-menarcheal girls. Methods: Nineteen young female judo athletes (age 13.9 ± 2.3 years) were divided into a pre-menarche ( n = 7) and a post-menarche ( n = 12) group. The athletes were evaluated through neuromuscular tests, including standing long jump (SLJ),…
More time for judo matches? Analysis of type of techniques, time, scores, and penalties in the Tokyo 2020 Olympic Games
This study aimed to analyze the distribution of judo matches in the Tokyo 2020 Olympic Games, considering matches in the regular duration (≤4 min) and during the extra time (the golden score) according to sex, scores, penalties, phases of competition, weight categories, and judo techniques. The data were extracted from the Official Results Books of the Olympic Games in Tokyo 2020. The combats were divided in matches that were finished in the regu…
Participation in the International Judo Federation World Tour competitions and performance in Tokyo Olympic Games
Introduction The International Judo Federation introduced a ranking system in 2009 that determines top athletes for the Olympic Games and seeds them in competitions. Previous research indicated that this ranking list and past performances predicted 19%–27% of performance in the Olympic Games and World Championships. However, due to the COVID-19 pandemic, the relationship between Judo World Tour competitions and Olympic Games performance may have …
The penalties and scores by events, to predict victory and defeat according to when the contest ends in elite judo contests
The main aim of this study was to ascertain whether the victory and defeat in the different types of the judo contest, in the elite male and female divisions, are associated to the occurrence of the penalties and scores of the first three events (changes in the scoreboard -either penalty or score-) of them. 2340 contests of the 2018, 2019 and 2021 World Judo Championships were analysed. The Pearson’s chi-squared test expressed that [1] shido-1 in…
Tracking the development of technical-tactical skills in judo athletes with visual impairments over four Paralympic cycles (2012-2024)
Judo performance is inherently complex due to the dynamic interplay of various factors influencing technique execution. This retrospective cohort study examined data on the technical-tactical performance of judo athletes with visual impairments across four Paralympic cycles (London 2012, Rio 2016, Tokyo 2020+1, and Paris 2024), categorized by sex (male and female), using a motor-technical classification system. Data from 718 matches and 1,028 tec…
Sex-based differences in penalty situations and shido types considering when the contest ends in elite judo
This study aimed to ascertain whether penalty situations and the types of shido are associated with the sex, regardless of when the contest ends, whether penalty situations and the types of shido are associated with when the contest ends, and whether this association is influenced by sex. Data from 2340 contests (3178 penalties) from the 2018, 2019, and 2021 World Judo Championships were analyzed. Chi-square tests with standardized residuals and …
Behavioral strategies in critical moments in judo for athletes with visual impairments
This study aimed to investigate the behavioral strategies employed during critical moments of judo matches by athletes with visual impairments, comparing performance across sport classes (J1 and J2), sexes, and weight categories at the Paris 2024 Paralympic Games. A descriptive time-motion analysis was conducted using video footage from 195 official matches, of which 93 featured critical moments, defined as situations in the final 60 seconds wher…
Competing with greater impairment
This study examined the age distribution of Paralympic athletes with high support needs at the Paris 2024 Paralympic Games, analyzing differences according to sex, competitive achievement, and discipline. A total of 1,263 athletes from eight individual sports were included. Between-group comparisons were conducted using the Mann–Whitney U and the Kruskal–Wallis test with Bonferroni post hoc , while Chi-square tests assessed associations between a…
Prediction of on-water performance in outrigger canoeing using laboratory tests
The relationship between laboratory-based ergometer performance, body size, and on-water outrigger canoe (OC) racing remains unclear. This study examined associations between anthropometric characteristics, ergometer-derived performance, and on-water endurance performance in OC athletes using a sex-specific approach. Competitive paddlers (22 males and 16 females) completed anthropometric assessments, an incremental test, a 1000-m time trial, and …
Age distributions in Paralympic Games Paris 2024
This study aimed to quantify the age distributions of Para athletes competing in the Paris 2024 Paralympic Games across 13 individual disciplines. A total of 5,540 athletes (52.2% male, 47.8% female) participated, with ages calculated at competition. The analysis examined differences by discipline, sex, and competitive achievement (medallist vs. non-medallist). The statistical analyses included the Kruskal-Wallis test followed by Mann-Whitney U p…
Effective transition from standing to groundwork combat
Judo for athletes with visual impairments (VI judo) requires constant adaptation of technical and strategic skills. The transition from standing to groundwork combat ( tachi-waza to ne-waza ) is a key phase that impacts match outcomes. VI judo athletes are classified into two groups: J1 (total blindness) and J2 (partially sighted), each facing distinct challenges. This study examined the effective transitions (those that resulted in scoring actio…
Athletes (10 obras) · Martial Arts: Techniques, Psychology, and Education (5 obras) · Psychology (5 obras) · Sport Psychology and Performance (5 obras) · Sports injuries and prevention (5 obras) · Sports Performance and Training (5 obras) · Medicine (4 obras) · Physical therapy (4 obras) · Demography (3 obras) · Demography (3 obras)