Sex differences and the effects of modified combat regulations on endurance capacity in judo athletes: A meta-analytic approach

Sterkowicz-Przybycień, Katarzyna; Fukuda, David H.

doi:10.1515/hukin-2015-0175

Cited by 9 publications

(6 citation statements)

References 11 publications

(22 reference statements)

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“…Also, there have been numerous changes in judo competition rules and thus match duration and content since the development of SJFT [ 55 , 56 , 57 , 58 , 59 ]. In line with these changes, judo athletes’ physiological characteristics have also changed [ 60 ]. Moreover, although SJFT has been used for almost 30 years, it has not changed; a classificatory table without considering weight categories is a vital deficiency [ 8 ].…”

Section: Discussionmentioning

confidence: 99%

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

Ceylan

Šimenko

Balcı

2022

JFMK

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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% confidence intervals related to each possible factor and Wald test statistics were calculated. The SJFT index classification was associated with Wingate peak and mean power, vertical jump, and sprint performance results (p < 0.05), whereas it was not associated with body fat percentage, agility, reaction time, hand grip strength, flexibility, and balance performances (p > 0.05). SJFT index classificatory norms are mainly related to athletes’ anaerobic power. Higher anaerobic power increases athletes’ possibility of being classified as ≥regular.

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Section: Discussionmentioning

confidence: 99%

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

Ceylan

Šimenko

Balcı

2022

JFMK

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“…Systematic reviews and meta-analyses provide a method of pooling data from available primary combat time studies, exploring the moments, interventions, and weight division effects on a specific outcome in judo ( Sterkowicz-Przybycien and Fukuda, 2014 , 2016 ; Albuquerque et al, 2016 ). As such, systematic reviews and meta-analyses could support establishing sport psychology evidence-based guidelines and decision-making to effectively prescribe judo preparation or specific tactical training ( Kashiwagura and Franchini, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Combat Time in International Male Judo Competitions: A Systematic Review and Meta-Analysis

et al. 2022

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This study aimed to synthesize literature data on male judo combat time in international competitions between 2010 and 2019. The search was carried out from May 8th to June 11th, 2021, in electronic databases using the following keywords: (“technical-tactical” OR “time motion” OR “combat time”) AND (“judo” OR “combat sports” OR “martial arts”). After the selection process, 8 articles were included in the systematic review and 7 in the meta-analysis. These studies analyzed 2,562 international male judo combats over the years 2010–2019. We observed that the average male judo combat time changed (2010 = 202.8; 2011–2012 = 304.8; 2016 = 237.4; 2018–2019 = 189.8 s) after each rule change (2010, 2013, 2017, and 2018). There was a significant difference between combats that ended up to the regular time and those that needed overtime (Golden Score: 2013 = 3% vs. 2018–2019 = 21%; p = 0.03). There were differences between 60 kg (p ≤ 0.019) and + 100 kg (p ≤ 0.04) categories and the others in 2011–2012. However, no significant difference was found between the combat time by weight division after the 2017 rule changes, although there are still differences in relation to the end of the combats (p < 0.001). There were significant changes in the male judo combat time with each rule change (2010, 2013, 2017, and 2018), and the data from the included studies point to a trend of homogeneity in the combat time spent between the weight divisions over the years, and an increase in the occurrence of Golden Score. More studies need to be carried out to identify the new temporal behaviors of athletes.

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“…Alguns estudos reconhecem que o controle do equilíbrio (Barbado et al, 2016;Yoshitomi et al, 2006), a preensão manual (Ache Dias, Külkamp, Wentz, Ovando, & Borges Junior, 2011) e o bom controle e coordenação dos músculos estabilizadores do tronco são essenciais para o aprimoramento do desempenho no judô (Ache Dias et al, 2011;Barnes & Malcata, 2017;Kocjan & Sarabon, 2014;Koshida, Ishii, Matsuda, & Hashimoto, 2017;Sterkowicz-Przybycień & Fukuda, 2016;Yoshitomi et al, 2006). Entretanto, ainda há carência de estudos que explorem as relações entre variáveis motoras e valências físicas com o desempenho de judocas.…”

Section: Introductionunclassified

Aspectos biomecânicos e fisiológicos influenciadores no desempenho de judocas

Colman

Carvalho²,

Ansolin

et al. 2020

Educ. fís. cienc.

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Objetivo: Identificar o efeito de variáveis mecânicas e fisiológicas sobre o nível de desempenho no judô, sendo elas: controle do equilíbrio; força de preensão palmar; altura de salto; potência mecânica muscular dos membros inferiores; índices de elasticidade (IE) e de fadiga (IF). Métodos: Amostra composta por 17 atletas de judô, de ambos os sexos, recrutados de forma intencional e não probabilística. Cada voluntário participou de uma bateria de testes realizada em um único encontro. Foi aplicado o teste de desempenho específico de judô Special Judo Fitness Test – SJFT. Na sequência realizou-se medidas de equilíbrio, preensão palmar e os testes de salto para: avaliação da potência mecânica muscular dos membros inferiores; IE e IF. Utilizou-se o Generalized Linear Model (GLzM). Resultados: Apenas a altura no Squat Jump (A_SJ), que apresentou efeito positivo, e o IE, que apresentou negativo, afetaram o desempenho no SJFT. Conclusão: A A_SJ e o IE afetaram o desempenho no SJFT, sendo que maiores alturas de salto SJ predizem um desempenho aprimorado; e maior contribuição da energia elástica, com valores mais altos de IE, prediz um desempenho piorado. As demais variáveis (potência muscular, altura no Counter-Movement Jump, preensão palmar, equilíbrio e IF) não afetaram o desempenho no SJFT.

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Sex differences and the effects of modified combat regulations on endurance capacity in judo athletes: A meta-analytic approach

Cited by 9 publications

References 11 publications

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

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

Combat Time in International Male Judo Competitions: A Systematic Review and Meta-Analysis

Aspectos biomecânicos e fisiológicos influenciadores no desempenho de judocas

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