Time-motion analysis during elite judo combats (defragmenting the gripping time) (original) (raw)
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International Journal of Performance Analysis in Sport, 2020
The purpose of the study was to compare the female cadet`s judo weight divisions based on time-motion analysis. For this, participants were grouped by weight, according to the following criteria: Lighters (n = 32, ≤ 48 kg), Middlers (n = 24, > 48 kg and ≤ 63 kg) and Heavies (n = 14, > 63 kg) of four local judo championships. Time-motion analysis were observed, according to each combat phase (i.e. combat, standing combat, approach, gripping, attack, groundwork combat and pause phases). ANOVA and Bonferroni tests were used, p ≤.05. The results indicated differences between total combat phase, with heavies (109.6 ± 67.2 s) <lighters (233.8 ± 163.4 s) and middlers (228.0 ± 1119.8 s), total standing combat, with heavies (58.3 ± 29.9 s) <lighters (106.4 ± 66 s), approach phase, with heavies (21.3 ± 10.6 s) <lighters (44.3 ± 33.5 s) and groundwork phase, with middlers (71.3 ± 43.8 s) > lighters (41.2 ± 25 s) and heavies (31.4 ± 27.7 s). In conclusion, female cadet training programmes should be adjusted according to their weight divisions with consideration for the temporal structure of the competitive environment.
A comparison of time-motion performance between age groups in judo matches.
The aim of the study was to verify differences between age groups of female judo matches in time-motion and technicaltactical analysis. The sample was composed of pre-cadet (13-14 years, n = 148), cadet (15-16 years, n = 228), junior (17-19 years, n = 104) and senior (>20 years, n = 237) groups. The time-motion indicators consisted of total combat time, standing combat time, displacement without contact, gripping time, total time of techniques, groundwork combat time and pause time, per match and by each combat/pause cycle. Technical and tactical variables were also collected. The one-way analysis of variance and a post hoc test were conducted, P ≤ 0.05. Cadets, with a median of 7 (2, 12), had a number of combat/pause cycles different from junior, with 3 (1, 8.5). Regarding time-motion per match and per cycle, senior had longer total combat time, standing combat time and gripping time than other groups. Senior presented lower frequency of leg techniques than pre-cadet, cadet and junior. Time-motion and technical-tactical variables effects in female judo athletes emphasise the difference between seniors and other groups.
The aim of the study was to verify differences between age groups of female judo matches in time-motion and technicaltactical analysis. The sample was composed of pre-cadet (13-14 years, n = 148), cadet (15-16 years, n = 228), junior (17-19 years, n = 104) and senior (>20 years, n = 237) groups. The time-motion indicators consisted of total combat time, standing combat time, displacement without contact, gripping time, total time of techniques, groundwork combat time and pause time, per match and by each combat/pause cycle. Technical and tactical variables were also collected. The one-way analysis of variance and a post hoc test were conducted, P ≤ 0.05. Cadets, with a median of 7 (2, 12), had a number of combat/pause cycles different from junior, with 3 (1, 8.5). Regarding time-motion per match and per cycle, senior had longer total combat time, standing combat time and gripping time than other groups. Senior presented lower frequency of leg techniques than pre-cadet, cadet and junior. Time-motion and technical-tactical variables effects in female judo athletes emphasise the difference between seniors and other groups.
A Time-Motion Analysis of Lightweight Women's Judo in the 2010 World Championships
International Journal of Sports Science & Coaching, 2015
The Olympic sport of judo has a growing base of performance analysis research considering the technical aspects, the tactical aspects and time motion analysis. This study aimed to further analyse this sport by specifically considering the time motion aspects of work, rest, kumi-kata and ne-waza in lightweight women's judo to establish if there are differences in this specific population of judo athletes. Pre-recorded footage of the women's u48kg, u52kg and u57kg weight divisions (143 contests) from the 2010 world judo championships were coded into temporal sequences. The coding of five KPIs across the three weight groups produced a total of 1756 hajime to matte blocks (work), 1422 matte to hajime blocks (rest), 1786 kumi-kata sequences (gripping sequences), and 516 ne-waza sequences (ground work). The results suggest the time spent in hajime to matte (work) and in matte to hajime (rest) are similar to those seen in other studies. This suggests there is little difference in t...
Time-motion performance in semi-professional Lithuanian women’s judo athletes
2017
Background and Study Aim: Time-motion analysis can provide specific information for the judo physical and technical performance in each group and weight categories. The aim of this study was to verify the hypothesized that Lithuanian female judo athletes of light-weight categories (under 48 kg and under 52 kg) perform faster time-motion actions during a match compared to heavier categories. Material and Methods: Analyses of literature resources, competition match protocols and pedagogic surveillance methods were applied in this study. The statistic computation was performed using SPSS 18.0 for Windows. Data was collected from 58 high rank female adults fights at the Lithuanian Judo Championship 2016. Results: It was identified that only the indicators of total time of technique (p<0.025) and groundwork (ne waza) combat time (p<0.016) with regard to women’s judo matches significantly differ between the weight category under 52 kg and under 70 kg. Moreover, differences of ne waz...
Time-Motion analysis in Muay-Thai and Kick-Boxing amateur matches
Journal of Human Sport and Exercise, 2011
Silva JJR, del Vecchio FB, Picanço LM, Takito MY, Franchini E. Time-Motion analysis in Muay-Thai and Kick-Boxing amateur matches. Introduction: The aim of this study was to analyze time structure and effort level in Muay Thai and Kick-Boxing amateur level matches. Material and Methods: In Thirteen matches, the time structure was studied considering three levels of effort: i) Observation ii) Preparation, iii) Interaction. Data are presented using median (25% -75%) and the mixed linear regression analysis was used to compared time structure and combat sports. Results: It was found superiority (p<0.002) in the observation time in relation to another effort types, with no significant difference between sports. Conclusion: There were no time structure differences in modalities, when the same effort levels were compared, but time spent in observation was longer. This data is important to the technical-tactical preparation of athletes.
Judo Combat: Time-Motion Analysis And Biomechanical Approach
IJF Academy, 2021
The aim of this work is to connect time-motion analysis of judo combats and biomechanical classification of throwing techniques differenced as lever based and couple-based techniques. The connection of time contest analysis and biomechanical approach made this study punctual, nomothetic and useful for training input. The study sample included 104 judo combats and the collection of 6 time-motion indicators, namely: average combat time, locomotion, technique, ne waza, defense in standing, defense in groundwork phases. The study results showed that the locomotion phase is longer than the other combat phases, while technique phase is the shortest one. Average time durations increased after first round till to final combats. Lever based techniques were used a little bit more than couple-based techniques and this may be taken into account in training process. The semifinal combats, and combats for bronze medal lasted longer than other rounds. Also, the majority of the combats ended before regular time and 19% of the combats finished with golden score. The results of this work give information about time-motion characters of the judo contests that could be connected to the order of magnitude of the energy demands of the real judo competitions, by one heuristic combating equation, for example. The judo coaches may use these findings to plan their training process and improve strategic skills of judokas.
Perceptual and Motor Skills, 2011
Mixed martial arts (MMA) have become a fast-growing worldwide expansion of martial arts competition, requiring high level of skill, physical conditioning, and strategy, and involving a synthesis of combat while standing or on the ground. This study quantified the effort-pause ratio (EP), and classified effort segments of stand-up or groundwork development to identify the number of actions performed per round in MMA matches. 52 MMA athletes participated in the study ( M age = 24 yr., SD = 5; average experience in MMA = 5 yr., SD = 3). A one-way analysis of variance with repeated measurements was conducted to compare the type of action across the rounds. A chi-squared test was applied across the percentages to compare proportions of different events. Only one significant difference ( p<.05) was observed among rounds: time in groundwork of low intensity was longer in the second compared to the third round. When the interval between rounds was not considered, the EP ratio (between hi...
A time-motion, technical and tactical analysis of lightweight women's judo
2017
Introduction: This study analysed lightweight women’s judo from three common aspects, time-motion, technical and tactical in order to develop a deeper understanding of the demands placed specifically on this population and whether they differ to others. This information may allow coaches to develop specific training for this population. Method: Analysing all the fights that included lightweight women in the 2010 and 2014 World Judo Championships, 251 athletes across 267 contests were analysed. Video was collected live and downloaded from youtube before being analysed in Sportscode Elite software and exported into Microsoft excel and SPSS for further analysis. Results: Lightweight women appear to have similar time-motion characteristics to previous research across all weight categories. Of the 2284 attacks Ippon-seoi-nage, Uchimata and Sode-tsuri-komi-goshi have the highest frequency but the most efficient throws are O-sotogari, Morote-seoi-nage and O-uchi-gari. The most prevalent an...