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Linking pre-performance stress appraisals with emotions in sport 将体育运动中的赛前压力评估与情绪联系起来
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-07-25 DOI: 10.1177/17479541241259726
Nicholas Stanger, Mariana Kaiseler, Toni L. Williams
Although research has investigated how appraisals are linked with categories of emotions (e.g. pleasant and unpleasant emotions) in sport, research into how stress appraisal components are associated with specific discrete emotions commonly experienced in sport has received scant attention. This study examined how pre-performance stress appraisals were related to pre-performance anger, anxiety, dejection, excitement, and happiness. Athletes ( N = 458) completed measures of pre-performance stress appraisals and emotions in relation to their latest competitive performance. Path analyses revealed challenge appraisal was positively linked to pleasant emotions, and threat appraisal with unpleasant emotions. Specific emotions also possessed discrete links with appraisal components. For example, uncontrollable-by-anyone appraisal was positively linked with anger and dejection but inversely linked with anxiety. Moreover, controllable-by-others appraisal was positively associated, and controllable-by-self appraisal was negatively associated, with anxiety. Excitement and happiness were similarly related with appraisal components. However, controllable-by-self appraisal was positively and more strongly associated with excitement, whereas controllable-by-others appraisal was also positively and directly linked with happiness. These findings highlight how stress appraisals are linked with common emotions in sport and offer applied implications for coaches, sport psychologists and athletes regarding ways that could help regulate pre-performance emotions in sport.
尽管已有研究调查了评价如何与体育运动中的各类情绪(如愉快和不愉快情绪)相关联,但有关压力评价成分如何与体育运动中常见的特定离散情绪相关联的研究却很少受到关注。本研究探讨了表演前压力评估与表演前愤怒、焦虑、沮丧、兴奋和快乐之间的关系。运动员(458 人)完成了与他们最近的竞技表现相关的赛前压力评估和情绪测量。路径分析显示,挑战评价与愉快情绪呈正相关,威胁评价与不愉快情绪呈正相关。特定的情绪也与评价成分有离散的联系。例如,"不可控 "评价与愤怒和沮丧呈正相关,但与焦虑呈反相关。此外,"他人可控 "评价与焦虑呈正相关,而 "自我可控 "评价与焦虑呈负相关。兴奋和快乐与评价成分的关系类似。然而,可控的自我评价与兴奋有更强的正相关,而可控的他人评价也与快乐有直接的正相关。这些研究结果强调了压力评价与体育运动中常见情绪之间的联系,并为教练员、体育心理学家和运动员提供了有助于调节体育运动中运动前情绪的方法。
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引用次数: 0
A data-driven analysis of the technical and tactical evolution of elite women's football 对精英女子足球技术和战术演变的数据驱动分析
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-07-23 DOI: 10.1177/17479541241257809
Lotte Bransen, Jesse Davis
Currently, most research into the evolution of player performance in women's football has focused on physical performance. In contrast, we lack data-driven research into the technical and tactical developments of the women's game. This paper aims to fill this research gap by analysing an extensive longitudinal dataset containing event data for 3510 matches over eight years in the game's top leagues. It uses analytics techniques to assess changes in technical skills and tactical behaviours in the women's game. Tactically, we observe longer possession sequences and fewer long-distance shots. Technically, we observe that players are completing more difficult and valuable passes at a higher rate, and putting a higher percentage of shots on target, with a particular emphasis on aiming for the corners of the goal. These findings could aid football practitioners to account for the developments of the game.
目前,对女子足球运动员表现演变的研究大多集中在身体表现方面。相比之下,我们缺乏对女子足球技术和战术发展的数据驱动研究。本文旨在通过分析一个广泛的纵向数据集来填补这一研究空白,该数据集包含八年来顶级联赛中 3510 场比赛的事件数据。它使用分析技术来评估女子足球比赛中技术技能和战术行为的变化。在战术方面,我们观察到控球时间更长,远射次数更少。在技术上,我们观察到球员以更高的速度完成了更多高难度和有价值的传球,射门命中率更高,尤其强调瞄准球门角部。这些发现有助于足球从业人员了解足球运动的发展。
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引用次数: 0
Exploring the impact of ball possession directionality on youth footballers’ positioning, technical skills and physical abilities in small-sided games 探索持球方向性对青少年足球运动员在小型比赛中的定位、技术技能和体能的影响
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-05-27 DOI: 10.1177/17479541241257016
Diogo Coutinho, Bruno Gonçalves, Adam Leigh Kelly, Sara Santos, Pedro Figueiredo, Carlos Soares, Bruno Travassos
This study aimed to investigate the effects of manipulating ball possession directionality (i.e., NO direction, MULTI direction or ONE direction) on the physical, tactical and technical performance of youth football players during small-sided games (SSGs). A total of 18 male youth football players (age: 13.6 ± 0.4 years) participated in four testing days, where they completed three random order experimental tasks based on a 4vs4 SSG: (i) NO direction, where players performed a ball possession task without a specific direction to progress; (ii) MULTI direction, where two neutral players were added to the top of each pitch and players could use them to maintain possession; and (iii) ONE direction, where each team defended and scored in two small goals placed at opposite ends of the pitch. In the positioning perspective, the NO condition showed a higher spatial exploration index than the other two conditions ( p = .001), while higher distance to the nearest teammate was identified in the MULTI ( p = .007) and to the nearest opponent in the ONE ( p < .001). In the physical variables, higher game pace ( p = .002), total distance covered ( p < .001) and jogging distance ( p < .001) were identified in the MULTI than the other conditions. Lastly, from the technical perspective, players revealed better passing decision-making ( p = .004) in the ONE than NO or MULTI conditions. Based on these results, coaches may use NO condition to emphasize space exploration, MULTI to increase external load and game pace, while ONE to emphasize technical actions related to ball control and pass.
本研究旨在探讨操控持球方向性(即无方向、多方向或单一方向)对青少年足球运动员在小场比赛(SSGs)中的体能、战术和技术表现的影响。共有 18 名男性青少年足球运动员(年龄:13.6 ± 0.4 岁)参加了为期四天的测试,他们在 4vs4 SSG 的基础上完成了三项随机顺序的实验任务:(i) 无方向,即球员在没有特定前进方向的情况下完成控球任务;(ii) 多方向,即在每个球场的顶部增加两名中立球员,球员可以利用他们来保持控球;(iii) 一个方向,即每队在球场两端的两个小球中进行防守和得分。从定位角度看,"无 "条件下的空间探索指数高于其他两种条件(p = .001),而 "多 "条件下与最近队友的距离较远(p = .007),"一 "条件下与最近对手的距离较远(p <.001)。在体能变量方面,与其他条件相比,MULTI 条件下的比赛速度(p = .002)、总路程(p < .001)和慢跑距离(p < .001)更高。最后,从技术角度来看,球员在 "单一 "条件下的传球决策能力(p = .004)优于 "无 "或 "多重 "条件下的传球决策能力(p = .004)。基于这些结果,教练员可以利用 "无 "条件强调空间探索,利用 "多 "条件增加外部负荷和比赛节奏,而利用 "一 "条件强调与控球和传球有关的技术动作。
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引用次数: 0
Identification of indicators that predict victory in the five main CONMEBOL and UEFA leagues 确定预测巴西国家足球协会和欧洲足联五大联赛胜负的指标
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-05-27 DOI: 10.1177/17479541241249475
André Luiz Braga Jacinto, Gibson Moreira Praça, Guilherme de Sousa Pinheiro, Varley Teoldo da Costa
This study identified which key performance indicators that predict the probability of winning are similar and specific for the top CONMEBOL and UEFA leagues. The analysis covered 12,289 games from the 2017/2018 to 2021/2022 seasons, excluding draws to focus on decisive results. Performance metrics were extracted using the InStat Scout® web platform, evaluating 55 offensive and defensive performance variables from the CONMEBOL and UEFA leagues. For data analysis, binary logistic regression was performed with the Forward Stepwise method. 14 similar predictive variables were identified between the CONMEBOL and UEFA leagues. We also identified 6 win-predictor variables specific to CONMEBOL, 2 win-predictor variables specific to UEFA, and 1 contextual variable that was predictive of victory for the CONMEBOL and UEFA leagues. The KPIs that are associated with an increased likelihood of winning games were identified. These include offensive actions, such as creating scoring chances, entering the final third of the opponent's field, shooting on goal, and being effective in counterattacks, converting penalties, and direct free kicks and making important passes and passes. For defensive actions, it was found that fouls, recoveries, possession interceptions, and low block defensive pressures are also associated with an increased likelihood of winning in the five main CONMEBOL and UEFA leagues. Particularly, for CONMEBOL leagues, counter-attacking actions, ball possession (%), free-kicks and efficiency for high pressing can also be associated with increased probability of winning. Specific to UEFA leagues, advancing actions down the left flanks and efficiency for team pressing are associated with increased probability of winning.
本研究确定了哪些预测获胜概率的关键性能指标与国家足球协会和欧洲足联的顶级联赛具有相似性和特殊性。分析涵盖 2017/2018 至 2021/2022 赛季的 12,289 场比赛,不包括平局,以关注决定性结果。使用 InStat Scout® 网络平台提取了性能指标,评估了来自巴西国家足球协会和欧洲足联联赛的 55 个进攻和防守性能变量。在数据分析中,采用前向逐步法进行了二元逻辑回归。结果发现,CONMEBOL 和 UEFA 联赛中有 14 个相似的预测变量。此外,我们还确定了 6 个预测 CONMEBOL 获胜的变量,2 个预测 UEFA 获胜的变量,以及 1 个预测 CONMEBOL 和 UEFA 联赛获胜的环境变量。确定了与增加获胜可能性相关的关键绩效指标。这些指标包括进攻行动,如创造得分机会、进入对方场地的最后三分之一、射门、有效反击、转换点球、直接任意球以及重要传球和传中。在防守动作方面,研究发现,犯规、回追、控球拦截和低阻挡防守压力也与 CONMEBOL 和 UEFA 五大联赛获胜可能性的增加有关。特别是在巴西国家杯联赛中,反击动作、控球率(%)、任意球和高位逼抢效率也与获胜概率的增加有关。具体到欧足联联赛,左翼推进动作和团队压迫效率与获胜概率增加有关。
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引用次数: 0
Critical speed models of high-resolution speed-duration profiles describe peak running demands in soccer 高分辨率速度-持续时间曲线的临界速度模型描述了足球运动中的高峰跑步需求
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-05-09 DOI: 10.1177/17479541241246951
Eliran Mizelman, Aaron Pearson, Dani Chu, David C Clarke
The purpose of this study was to characterize critical speed (CS) models for summarizing high-resolution speed-duration profiles from GPS tracking data obtained from soccer players. GPS data from 15 male NCAA Division I soccer players were collected during practices and games over a 6-week period. Moving averages of the speed data were computed for each file for duration windows spanning 0.1 to 600 seconds at 0.1-second resolution. Speed-duration profiles for each session and for the entire sampling period (“global”) were generated for each player by selecting the maximal mean speeds for each duration. Four models were fit to the profiles: the two-parameter CS (CS2) model, the three-parameter CS (CS3) model, the omni-domain speed-duration (OmSD) model, and the five-parameter logistic (5PL) model. The 5PL, CS3, and OmSD models exhibited similar goodness of fits, and all outperformed the CS2 model. Similar CS estimates were obtained for each model, whereas maximum speed ( Smax) estimates were lower for OmSD compared to the 5PL. Players exhibited a range of parameter values for CS, D′, and Smax. Smax and CS estimated from session-specific speed-duration profiles were on average higher for games compared to practices. We conclude that CS models are useful for empirically describing speed-duration profiles and for assessing peak running demands for soccer practices and games. The proposed approach could help coaches design practice activities to better mimic game demands.
本研究旨在确定临界速度(CS)模型的特征,以便从足球运动员的 GPS 跟踪数据中总结出高分辨率的速度-持续时间曲线。在为期 6 周的训练和比赛期间,收集了 15 名 NCAA 一级联盟男子足球运动员的 GPS 数据。以 0.1 秒的分辨率计算了每个文件的速度数据移动平均值,持续时间窗口从 0.1 秒到 600 秒不等。通过选择每个持续时间内的最大平均速度,为每个球员生成每次训练和整个采样期("全局")的速度-持续时间曲线。对剖面图拟合了四个模型:双参数 CS(CS2)模型、三参数 CS(CS3)模型、全域速度-持续时间(OmSD)模型和五参数逻辑(5PL)模型。5PL、CS3 和 OmSD 模型的拟合优度相似,均优于 CS2 模型。每个模型都获得了相似的 CS 估计值,而 OmSD 的最大速度(Smax)估计值低于 5PL 模型。运动员的 CS、D′ 和 Smax 参数值范围较大。与练习相比,根据特定训练阶段的速度-持续时间曲线估算出的比赛 Smax 和 CS 平均较高。我们得出的结论是,CS 模型可用于根据经验描述速度-持续时间曲线,以及评估足球训练和比赛的高峰跑步需求。所提出的方法可以帮助教练设计练习活动,以更好地模拟比赛需求。
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引用次数: 0
Match-play running demands in a female soccer professional club: From academy to professional team 女足职业俱乐部的比赛运行需求:从学院到职业队
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-05-07 DOI: 10.1177/17479541241248610
David Casamichana, Eider Barba, Petrus Gantois, Fabio Nakamura, Beñat Erkizia, Julen Castellano
The objective of the study was to examine the match-running load of female soccer players competing at distinct age groups (U15, U18 and senior cohorts) belonging to the same professional club, over a competitive season. The external load variables of the official matches were monitored with Global Positioning System (GPS) technology: total distance (TD), at >18 km·h−1 (running), at >21 km·h−1 (high-speed running, HSR) and at >24 km·h−1 (sprint, SPR) distances, efforts at >85% of the maximal sprint speed (>85% MSS), acceleration load (aLoaD), accelerations (ACC2 and ACC3, >2 and >3 m·s−2) and decelerations (DEC2 and DEC3 <−2 and <−3 m·s−2). Overall, distances covered at running, HSR and sprinting were greater for senior players than their younger peers (U15 and U18; p < 0.05). Regarding HSR and sprints, no difference was found for sprints accumulated by central defender (CD) players in comparison to U18 and U15 ( p > 0.05). In addition, U18 and senior players engaged more often in ACC and DEC, >2 and >3 m·s−2, respectively, than U15 players ( p < 0.05). In conclusion, older female soccer players are exposed to higher match load than their younger peers. These findings could be useful for soccer coaches to design specific speed development programmes across the long-term athletic development pathway.
这项研究的目的是考察隶属于同一职业俱乐部的不同年龄组(U15、U18 和高年级组)的女足运动员在一个竞技赛季中的比赛跑动负荷。利用全球定位系统(GPS)技术对正式比赛的外部负荷变量进行了监测:总距离 (TD)、18 km-h-1(跑步)、21 km-h-1(高速跑,HSR)和 24 km-h-1(短跑,SPR)距离、最大短跑速度 85% 的努力;85%的最大冲刺速度(>85% MSS)、加速负荷(aLoaD)、加速度(ACC2 和 ACC3,>2 和 >3 m-s-2)和减速度(DEC2 和 DEC3,<-2 和 <-3 m-s-2)。总体而言,高年级球员在跑步、HSR 和短跑时的距离大于低年级球员(U15 和 U18;p <0.05)。至于HSR和短跑,中后卫(CD)球员与U18和U15球员相比,短跑距离没有差异(p >0.05)。此外,与 U15 球员相比,U18 球员和高年级球员参与 ACC 和 DEC 的次数更多,分别为 2 和 3 m-s-2(p <0.05)。总之,年龄较大的女足运动员比年龄较小的女足运动员承受更高的比赛负荷。这些发现有助于足球教练在长期的运动发展过程中设计特定的速度发展计划。
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引用次数: 0
Early sport specialization impact on rates of injury in collegiate and professional sport participation: A systematic review and meta-analysis 早期体育专业化对大学生和职业运动员受伤率的影响:系统回顾和荟萃分析
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-05-07 DOI: 10.1177/17479541241248565
Bahman Adlou, Alan Wilson, Christopher Wilburn, Wendi Weimar
Early sport specialization (ESS) is prevalent among adolescent athletes aspiring for elite status. However, the impact of ESS on sports injury (SI) rates during their collegiate and professional careers remains unclear. This systematic review and meta-analysis evaluate the effect of ESS on SI rates during high-level sport participation. Data sources Search included PubMed, Web of Science, SPORTDiscus, EMBASE, Cochrane, CINAHL, ERIC, and Medline. Study selection PRISMA guidelines were followed to identify peer-reviewed articles published until 01 August 2023. Eligible studies reported numbers of athletes in collegiate and professional teams, including national, in ESS and their counterpart category, along with the portion with at least one SI. Studies on concussion or non-contact injuries, or without explicit injury reports during elite sport participation were excluded. Of 526 studies, 13 met the criteria, and 5 were included in the quantitative analysis. These studies reported SIs on collegiate and professional athletes. A total of 3087 athletes were analyzed (ESS = 45%). The overall effect showed that ESS athletes had a lower odds ratio (OR = 0.7) of a SI during high-level sport participation, but this finding was not statistically significant (p > 0.05). Results demonstrated that ESS athletes had a lower odds ratio (OR = 0.7) of a SI during elite sport participation, but the effect was not statistically significant. Articles with clear reports are scarce, and thus limit the impact of the findings in this study. High heterogeneity was evident in this analysis, largely due to lack of standardized terminology, evaluation, and data representation. Prospective studies that consider diverse athlete population of the same sport are warranted.
早期运动专项化(ESS)在渴望成为精英的青少年运动员中十分普遍。然而,在大学和职业生涯中,ESS 对运动损伤率(SI)的影响仍不清楚。本系统综述和荟萃分析评估了ESS对高水平运动参与过程中运动损伤率的影响。数据来源 搜索范围包括 PubMed、Web of Science、SPORTDiscus、EMBASE、Cochrane、CINAHL、ERIC 和 Medline。研究选择遵循 PRISMA 指南,以确定 2023 年 8 月 1 日之前发表的经同行评审的文章。符合条件的研究报告了大学队和职业队(包括国家队)中ESS及其对应类别的运动员人数,以及至少有一个SI的部分。有关脑震荡或非接触性损伤的研究,或在精英运动参与过程中没有明确损伤报告的研究均被排除在外。在 526 项研究中,有 13 项符合标准,其中 5 项被纳入定量分析。这些研究报告了大学生和职业运动员的运动损伤情况。共分析了 3087 名运动员(ESS = 45%)。总体效果显示,ESS 运动员在参加高水平运动时发生 SI 的几率(OR = 0.7)较低,但这一结果在统计学上并不显著(p > 0.05)。结果表明,ESS 运动员在参加精英运动时发生 SI 的几率较低(OR = 0.7),但这一影响在统计学上并不显著。有明确报告的文章很少,因此限制了本研究结果的影响力。本分析的异质性很明显,这主要是由于缺乏标准化的术语、评估和数据表示。有必要对同一运动项目的不同运动员群体进行前瞻性研究。
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引用次数: 0
The relationships among trait mindfulness, obsessive passion, and emotions in high school sport managers 高中体育管理者的特质心智、执着激情和情绪之间的关系
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-05-07 DOI: 10.1177/17479541241247790
Ye Hoon Lee, Heetae Cho
PurposeMindfulness emerges as a possible means to alleviate obsessive passion. Nevertheless, its application in sport leadership context remains understudied, despite the significant levels of stress and turnover that are common in this profession. This study aims to investigate the relationships among trait mindfulness, obsessive passion, and specific positive (e.g., happiness), neutral (e.g., calmness), and negative (e.g., anger) emotions in high school sport managers.MethodIn total, 358 high school sport managers ( Mage = 48.47, SD = 8.93) working in 46 states in the United States completed the online questionnaires measuring the proposed variables. Descriptive statistics, correlation analysis, confirmatory factor analysis, and structural equation modeling were utilized to examine the hypotheses.ResultThe results showed that trait mindfulness negatively predicted obsessive passion. Additionally, obsessive passion negatively predicted the feelings of happiness and calmness, while it positively predicted anger. The mediation analysis revealed that obsessive passion fully mediated the relationships between trait mindfulness and the three types of emotion.ConclusionThese findings are significant because they demonstrate the buffering role of trait mindfulness in obsessive passion. Furthermore, the study provides meaningful insights into sport managers’ emotional experiences, particularly by empirically examining the effect of obsessive passion on different emotions.
目的正念是缓解强迫性激情的一种可能手段。然而,尽管在体育领导这一职业中普遍存在着巨大的压力和人员流动,但对其在体育领导中的应用研究仍然不足。本研究旨在调查高中体育经理人的正念特质、强迫性激情和特定积极情绪(如快乐)、中性情绪(如平静)和消极情绪(如愤怒)之间的关系。方法在美国 46 个州工作的 358 名高中体育经理人(Mage = 48.47,SD = 8.93)完成了在线问卷,测量了所提出的变量。结果表明,特质正念对痴迷激情有负面预测作用。此外,强迫性激情对幸福感和平静感有负向预测作用,而对愤怒感有正向预测作用。调解分析表明,强迫性激情完全调解了正念特质与三种情绪之间的关系。 结论这些研究结果意义重大,因为它们证明了正念特质对强迫性激情的缓冲作用。此外,本研究还为体育经理人的情绪体验提供了有意义的见解,特别是通过实证研究了强迫性激情对不同情绪的影响。
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引用次数: 0
Profiling of expert bouldering routesetters 巨石攀登线路设置专家简介
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-05-06 DOI: 10.1177/17479541241248583
Julian Henz, Xavier Sanchez, Daniel Memmert, Jerry Prosper Medernach
IntroductionBouldering is an Olympic discipline that takes place on low-height climbing structures known as boulders. Routesetters play a critical role in bouldering; they design and set boulders to be climbed, which must be original, safe to climb and adapted to climbers’ levels. Considering the critical role routesetters play to keep the present success and ensure the future development of bouldering, the purpose of this study was to profile expert routesetters by identifying relevant key skills they possess and examining specific strategies they use when designing boulders.MethodsSeventy-eight expert routesetters completed an online survey structured in eight sections that assessed the following: perceptual–cognitive skills; soft skills; motor skills; climbing skills; welfare; safety and difficulty; climbing holds and wall features; and climbing movement diversity and boulder styles.ResultsAmong fundamental skills experts identified, most relevant to routesetters were possessing a broad climbing movement repertoire, the ability to develop several climbing strategies for one boulder, forecasting of climbing movements, climbing-specific decision-making and creativity, self-reflection, teamwork, dealing with negative feedback, technical skills and general fitness. Furthermore, most relevant specific routesetter skills and strategies appeared to encompass the ability to design boulders that account for climbers’ skill levels and safety, to adapt to the constraints of climbing gyms, to make optimal use of climbing wall features and to design versatile climbing movements.ConclusionThe expert routesetters’ profile comprises fundamental and specific skills and strategies that enable them to design target-oriented boulders with versatile climbing movements for different levels whilst accounting for climbers’ welfare.
导言:抱石运动是一项在被称为巨石的低高度攀岩结构上进行的奥林匹克运动项目。路线设置者在抱石运动中扮演着至关重要的角色;他们设计并设置要攀登的巨石,这些巨石必须具有独创性、攀登安全并适合攀登者的水平。考虑到路线设计者对保持目前的成功和确保巨石运动未来的发展所起的关键作用,本研究的目的是通过识别专家路线设计者所拥有的相关关键技能和研究他们在设计巨石时所使用的具体策略,对他们进行剖析。方法78名专家路线设计者完成了一项在线调查,调查分为八个部分,分别评估以下内容:感知认知技能、软技能、运动技能、攀登技能、福利、安全和难度、攀登支架和岩壁特征、攀登动作多样性和巨石风格。结果在专家们确定的基本技能中,与路线设定者最相关的技能是拥有广泛的攀岩动作组合、针对一块巨石制定多种攀岩策略的能力、攀岩动作预测、攀岩决策和创造力、自我反思、团队合作、处理负面反馈、技术技能和一般体能。此外,最相关的特定选线员技能和策略似乎还包括设计巨石的能力,即考虑到攀岩者的技能水平和安全、适应攀岩馆的限制、充分利用攀岩墙的特点以及设计多变的攀岩动作。 结论:专业选线员的特征包括基本和特定的技能和策略,这些技能和策略使他们能够为不同水平的攀岩者设计目标导向的巨石和多变的攀岩动作,同时考虑到攀岩者的福利。
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引用次数: 0
Effects of tackle height and shoulder preference on head and trunk acceleration in rugby 擒抱高度和肩部偏好对橄榄球运动中头部和躯干加速度的影响
IF 1.9 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM Pub Date : 2024-05-06 DOI: 10.1177/17479541241252967
Yuta Ogata, Takashi Soejima, Kenji Hara, Hiromi Takahata, Yu Ando, Akihiro Yamashita, Mutsuo Yamada, Hidetaka Murakami, Akira Maeda
BackgroundMost rugby injuries occur during tackles, therefore investigating safe tackling techniques is essential.ObjectivesTo determine the effects of different tackle heights and shoulder preference on head and trunk acceleration.MethodsThirty-nine rugby players belonging to university leagues, adult leagues, and adult leagues, tackled a stationary tackle bag under three height conditions (high, middle, and low) with a dominant shoulder and a non-dominant shoulder. We calculated the peak head and trunk accelerations (PhA and PtA, respectively) during the tackles and evaluated the difference in accelerations by the tackle height and side.ResultsThe PhA (26.1 g (17.1) g) during the tackles was significantly higher than the PtA (11.7(7.2) g, p < 0.01). The PhA was significantly larger in the high (27.4 (19.4) g) and middle (27.7 (17.0) g) tackles compared to the low (23.4 (14.6) g) tackle (high vs low: p < 0.01; middle vs low: p < 0.01). The PhA was significantly lower during the dominant shoulder side (23.0 (13.7) g) tackles than during the non-dominant shoulder side (30.4 (21.3) g) tackles ( p < 0.01).ConclusionThe results suggest that coaching strategies and policies aimed at reducing tackler height and improving tackle technique on the non-dominant shoulder would help reduce head acceleration forces.
背景大多数橄榄球伤害都发生在擒抱过程中,因此研究安全的擒抱技术至关重要。目的确定不同的擒抱高度和肩部偏好对头部和躯干加速度的影响。我们计算了擒抱过程中头部和躯干的峰值加速度(分别为 PhA 和 PtA),并评估了擒抱高度和擒抱侧加速度的差异。结果擒抱过程中的 PhA(26.1 g (17.1) g)明显高于 PtA(11.7(7.2) g,p < 0.01)。高位(27.4 (19.4) g)和中位(27.7 (17.0) g)擒抱时的 PhA 明显大于低位(23.4 (14.6) g)擒抱时的 PhA(高位 vs 低位:p < 0.01;中位 vs 低位:p < 0.01)。结果表明,旨在降低擒抱高度和改进非优势肩擒抱技术的教练策略和政策将有助于降低头部加速度力。
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International Journal of Sports Science & Coaching
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