Meadhbh Lewis, Elizabeth McNicholas, Anna-Marie McCarthy, Ian Sherwin
{"title":"Analysis of referee in-game interactions with players and other officials in professional Rugby Union","authors":"Meadhbh Lewis, Elizabeth McNicholas, Anna-Marie McCarthy, Ian Sherwin","doi":"10.1080/24748668.2023.2220528","DOIUrl":"https://doi.org/10.1080/24748668.2023.2220528","url":null,"abstract":"ABSTRACT This study utilises qualitative methods to explore the behaviours of rugby union referees in order to inform the development of a pedagogical tool that can be used to develop communication of rugby union referees. Effective communication is a critical part of a rugby union referee’s performance, yet there is a dearth of literature surrounding this area of rugby union referee development. Participants included professional IRFU referees (n = 6) with experience both at domestic league levels as well as at an international level. Audio footage from professional games (n = 18) was analysed and transcribed verbatim. Raw quotes were categorised as meaning units and a total of nine communicative behaviours were devised: (1) Preventative Instruction, (2) Command, (3) Explanation, (4) Organisational, (5) Acknowledgement, (6) Game Management, (7) Informative, and (8) Consultation. Results reveal various types of key communicative behaviours employed by rugby union referees throughout a game, depending on the situation presented in front of them. The findings of this study reveal the importance of selecting the most effective type of communication in any given situation. Uncovering such behaviours will enhance the development and assessment of rugby union communication skills through a pedagogical framework in order to improve on-field performance.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"134 7","pages":"232 - 248"},"PeriodicalIF":2.1,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41306540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Movement analysis of match play in U16-U21 youth Hungarian soccer players - the influence of age, position, and contextual variables","authors":"László Kádár, G. Géczi, J. Bognár, István Csáki","doi":"10.1080/24748668.2023.2219490","DOIUrl":"https://doi.org/10.1080/24748668.2023.2219490","url":null,"abstract":"ABSTRACT The purpose of this study was to demonstrate the locomotor match-performance of youth Hungarian football players according to age groups, playing positions and effects of contextual match factors. The sample consisted of 574 individuals in four youth age groups (U16, U17, U19, U21) in four playing positions: central defenders (n = 139), fullbacks (n = 148), central midfielders (n = 185), and forwards (n = 102). Tactically, all teams used a 4-4-2 diamond formation. Data was collected from 114 matches from elite Hungarian football academy matches during the 2018–2019 season, using a GPS technology (10 Hz). The main results were: (a) U16, U19, U21 age groups matches played against strong opponents presented greater values (but not significantly) of high-intensity running distances compared to matches against weak opponents; (b) U21 players covered greater high-intensity running distances when winning than drawing the matches; (c) the U16, U19, U21 age groups performed better (but not significantly) at home than away in terms of high-intensity running. The forwards (735 ± 176 m) and fullbacks (654 ± 185 m) performed best in total high-intensity running (>19.8 km/h). With regard to maximum speed, forwards reached significantly higher results (30.44 ± 1.64 km/h) than players in other positions. Since international football players demonstrate better measures in high-intensity running and sprinting than Hungarian players.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"23 1","pages":"213 - 231"},"PeriodicalIF":2.1,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46351552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Gutiérrez-Santiago, C. Vázquez-Estévez, S. Muñoz-Rodrigo, I. Prieto-Lage
{"title":"The temporal structure of male’s Olympic boxing matches in flyweight, middleweight and super heavyweight categories: a pilot study","authors":"A. Gutiérrez-Santiago, C. Vázquez-Estévez, S. Muñoz-Rodrigo, I. Prieto-Lage","doi":"10.1080/24748668.2023.2207370","DOIUrl":"https://doi.org/10.1080/24748668.2023.2207370","url":null,"abstract":"ABSTRACT The objective of this research was to define the temporal structure of Olympic boxing in males in the flyweight, middleweight and super heavyweight categories. The participants were boxers of the stated categories, who competed in the Tokyo 2020 Olympic Games. Using observational methodology, we analysed all the matches in these categories from the round of 16 (n = 45). To obtain the results, we used different analysis techniques with SPSS: descriptive analysis, Shapiro-Wilk, one-factor ANOVA, Kruskal–Wallis test and chi-square. The significance level used was p < 0.05. The results define the time structure models for each of the weight categories in the three rounds of combat. With these models, coaches and sport technicians will be able to establish the optimal training loads for their athletes. We found significant differences in the total number of punches and in the ring area where the punches were made, resulting in the flyweight category being where most actions are taken in both cases. In the three weight categories, the differences among the three rounds are minimal. We conclude that most of the combats end in the third round, consuming the total fighting time in the three weight categories.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"23 1","pages":"167 - 185"},"PeriodicalIF":2.1,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48146036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Jamil, Samuel Kerruish, Saumya Mehta, Ashwin A. Phatak, D. Memmert, Allistair P. McRobert
{"title":"Identifying which factors impact bowling and batting performances during the “death” phase of an innings in international men’s 50-over cricket","authors":"M. Jamil, Samuel Kerruish, Saumya Mehta, Ashwin A. Phatak, D. Memmert, Allistair P. McRobert","doi":"10.1080/24748668.2023.2193030","DOIUrl":"https://doi.org/10.1080/24748668.2023.2193030","url":null,"abstract":"ABSTRACT In this study, 3,767 balls bowled by international-level fast bowlers across two One-Day International (ODI) tournaments were analysed to determine how to effectively bowl during the “death” phase of an innings (final 10 overs). The results of chi-squared analyses revealed that bowling length, bowling line, batter quality and having wickets in hand were all associated with the concession of runs during the death phase (all p < 0.001). Specifically, the yorker length is revealed to be very effective at restricting runs conceded, whereas the opposite is true for the half-volley and full-toss lengths. The batting side having five or more wickets in hand results in greater than expected runs being scored during the death phase. Furthermore, the results reveal that middle order batters score more runs than their tail-ender team-mates during this death phase, suggesting that middle-order batters have to assume the role of “finishers”. From a practical perspective, the results of this study clearly identify areas bowlers can target to constrict the scoring of runs as well as areas they should avoid. Batting strategies in the death phase should consist maintaining five or more wickets in hand and thereby not exposing tail-enders to the bowling attack.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"143 1","pages":"111 - 124"},"PeriodicalIF":2.1,"publicationDate":"2023-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60139923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Silva, F. Nakamura, João Ribeiro, Jose Asian-Clemente, P. Roriz, R. Marcelino
{"title":"Using minimum effort duration can compromise the analysis of acceleration and deceleration demands in football","authors":"H. Silva, F. Nakamura, João Ribeiro, Jose Asian-Clemente, P. Roriz, R. Marcelino","doi":"10.1080/24748668.2023.2201745","DOIUrl":"https://doi.org/10.1080/24748668.2023.2201745","url":null,"abstract":"ABSTRACT The aim of this study was to characterise football players’ acceleration and deceleration demands regarding duration, initial velocity, and effort magnitude without a minimum effort duration. Forty-two male professional players were monitored daily during four training weeks, using a global position system. Players were divided according to their playing positions as central defenders, fullbacks, central midfielders, wide midfielders, and forwards. Acceleration and deceleration efforts were analysed from the start of the change in velocity until it stopped increasing (acceleration) or decreasing (deceleration). Descriptive statistics were performed for occurrences, initial velocities, and average and peak magnitudes. Comparisons between playing positions were conducted with one-way analysis of variance (ANOVA). The frequency of accelerations and decelerations decreased as the duration increased. The initial deceleration velocity increased with duration, but no changes were seen in the acceleration initial velocity. The average effort’s magnitude increased with duration, while the peak magnitudes decreased, showing acceleration and deceleration peaks between 0.5–1.3 and 0.1–0.3 s, respectively. Differences between playing positions occurred between 0.7 and 2.5 s. In conclusion, the measurement of accelerations and decelerations should avoid the use of minimum effort duration since it can modify the real training load of football players.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"23 1","pages":"125 - 137"},"PeriodicalIF":2.1,"publicationDate":"2023-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47469745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Oliveira, D. Marinho, T. Barbosa, Tatiana Sampaio, J. Morais
{"title":"Profile of female swimmers competing in the 50 m events at the 2021 LEN European Championships","authors":"J. Oliveira, D. Marinho, T. Barbosa, Tatiana Sampaio, J. Morais","doi":"10.1080/24748668.2023.2191393","DOIUrl":"https://doi.org/10.1080/24748668.2023.2191393","url":null,"abstract":"ABSTRACT This study aimed to understand whether there are significant differences in stroke kinematics between tiers in female swimmers competing in the four 50 m events of the 2021 European Championships and to understand the speed-time relationship in the four race events per tier. Participants were all female swimmers (backstroke: 78 swimmers; breaststroke: 75 swimmers; butterfly: 74 swimmers; freestyle: 87 swimmers) who participated in the 50 m events at the 2021 LEN European Championships held in Budapest (i.e. heats, semi-finals, and final). For each swimming stroke, swimmers were divided into three tiers (best-performing swimmers, intermedium-performing swimmers, and poorest-performing swimmers). Swimming speed revealed a significant tier effect (p < 0.05) in all race sections for all swimming strokes. The other stroke kinematic variables revealed divergent findings, but the stroke frequency presented an overall tier effect (p < 0.05) across all four swimming strokes. Curve fitting for all swimming strokes and tiers revealed a cubic relationship. Thus, it should be considered that female swimmers who compete in 50 m events in major competitions adopt an all-out strategy. The present data provide coaches with insightful information about the main trend in 50 m sprint events, specifically in each section of the race.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"23 1","pages":"97 - 110"},"PeriodicalIF":2.1,"publicationDate":"2023-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49550414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Iker Madinabeitia, Bernardo Pérez, M. Gómez-Ruano, D. Cárdenas
{"title":"Determination of basketball players’ high-performance profiles in the Spanish League","authors":"Iker Madinabeitia, Bernardo Pérez, M. Gómez-Ruano, D. Cárdenas","doi":"10.1080/24748668.2023.2183460","DOIUrl":"https://doi.org/10.1080/24748668.2023.2183460","url":null,"abstract":"ABSTRACT Coaches and sports scientists are looking for a way to predict performance in complex team sports such as basketball. However, concerning knowing what type of player’s profile is needed to win the competition, there is not too much information in the literature. Hence, our study had two aims: (i) to identify how the individual game-related statistics discriminate between winning and losing among different player positions through a cluster analysis; (ii) to elaborate predictive models that explain better performance through a decision tree analysis. 335 matches of the men’s Spanish League 2018/2019 were analysed, with a total of 7,345 individual statistics performances. The cluster analysis identified 3 performance groups formed by foreigners with both low (FLC; 23.8% shooting-guards) and high contributions (FHC; 32.1% centres) and Spanish with low contribution (SLC; 32.9% shooting-forwards). The decision tree analysis revealed that having players of SLC and FHC profiles predicts better results in the competition. Coaches can apply these profiles to build team composition.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"23 1","pages":"83 - 96"},"PeriodicalIF":2.1,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48812186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guilherme Machado, S. González-Víllora, Israel Teoldo
{"title":"Selected soccer players are quicker and better decision-makers in elite Brazilian youth academies","authors":"Guilherme Machado, S. González-Víllora, Israel Teoldo","doi":"10.1080/24748668.2023.2181609","DOIUrl":"https://doi.org/10.1080/24748668.2023.2181609","url":null,"abstract":"ABSTRACT Studies in talent identification and selection showed that more talented players usually possessed better decision-making skills. Nevertheless, studies on this topic have not yet been carried out: 1) assessing both decision-making time and quality based on offensive and defensive skills among selected and deselected youth soccer players; 2) neither assessed South American samples. This study aimed to compare the decision-making skills among selected and deselected players from Brazilian elite youth soccer academies. The sample comprised 317 Brazilian youth elite male soccer players (U-14, U-15, U-16, and U-17) from teams of the first national division in Brazil. Players’ decision-making skills, both quality and response time, were assessed with an objective video-based test (TacticUP®). Results showed that selected players, compared to those deselected, possessed advantages (p < 0.05) in every age group assessed on: 1) the decision-making time (U-16 and U-17); 2) the quality of decision-making (U-15); or 3) in both decision-making quality and time (U-14). Moreover, among all variables assessed (n = 72), the deselected players did not show any advantage compared to the selected ones. It is concluded that selected players by youth elite soccer academies in Brazil possess superior decision-making skills related to decision time and quality compared to those deselected.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"23 1","pages":"65 - 82"},"PeriodicalIF":2.1,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49017683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thiago André Rigon, R. Drezner, F. Nogueira, F. Yousefian, B. Travassos, L. Dantas
{"title":"What to look for in setting sports training tasks for young players? Analysis of the numerical configuration of players and court size constraints on futsal small-sided games performance difficulty level and player participation","authors":"Thiago André Rigon, R. Drezner, F. Nogueira, F. Yousefian, B. Travassos, L. Dantas","doi":"10.1080/24748668.2023.2199475","DOIUrl":"https://doi.org/10.1080/24748668.2023.2199475","url":null,"abstract":"ABSTRACT This study aimed to analyse the effects of the numerical configuration of players and court size constraints on futsal small-sided game (SSG) performance difficulty level and player participation. For that, the degree of effectiveness of 6155 offensive actions performed by 59 young players (9–12 years) was investigated in six SSG conditions (2v1a, 2v1b, 2v2, 3v3, 4v2, and 2v4). For the analysis, the raw data were transformed into three indexes: Difficulty Index Without the Ball (DI WOB), Difficulty Index With the Ball (DI WB), and Participation Index (PI). Statistically significant differences (p < 0.05) in the effectiveness of actions performed without the ball and with the ball indicated that the SSGs presented different levels of performance difficulty and player participation. More effective actions were performed in attack superiority configurations and full-court sizes, especially if these constraints were combined, indicating they induced an easier level of play. Court size constraint affected player participation in an inversely proportional fashion (larger spaces of practice induced less player participation). The study results are useful to adjust futsal SSGs for players with different skills. In addition, the adopted action evaluation approach has the potential to become the SSG a performance scanner for the players’ current level.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"23 1","pages":"31 - 47"},"PeriodicalIF":2.1,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48348617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biomechanics of suplex in Greco-Roman wrestling: a qualitative and time-motion analysis of international competitions","authors":"Julian Hoffmann, C. Amici, C. Minelli, A. Borboni","doi":"10.1080/24748668.2023.2181563","DOIUrl":"https://doi.org/10.1080/24748668.2023.2181563","url":null,"abstract":"ABSTRACT The suplex is one of the most important and spectacular offensive moves in Greco-Roman wrestling, and wrestling in general, but to date no published biomechanical study has systematically described it. We performed a qualitative biomechanical analysis to classify variants of suplex, and to split this complex move into phases and actions within them. As suplex efficacy highly depends on speed of execution, we analysed 80 suplex throws from publicly available videos of international matches at the highest level to describe the duration of the different phases and actions, and how these vary across variants of suplex. We observed a preference for belly-to-belly vs belly-to-back and for lateral vs frontal variants of suplex. We show differences in duration of important phases/actions across variants, including the preparation phase (longer for belly-to-back variants) and the back arch in the projection phase (longer for frontal variants), while we find no evidence of a difference in the frequency of win by fall. Our study provides a useful framework to evaluate and monitor suplex execution, through information to help choose a variant in specific match contexts, a systematic description of its complex motion to allow a more focused training, and “gold-standard” durations of its movement components.","PeriodicalId":49049,"journal":{"name":"International Journal of Performance Analysis in Sport","volume":"23 1","pages":"1 - 14"},"PeriodicalIF":2.1,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49667004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}