首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
Official rankings are the most common measure of success in professional women’s tennis. Despite their importance for earning potential and tournament seeding, little is known about ranking trajectories of female players and their influence on career success. Our objective was to conduct a comprehensive study of the career progression of elite female tennis talent. The study examined the ranking trajectories of the top 250 female professionals between 1990 and 2015. Using regression modelling of yearly peak rankings, we found a strong association between the shape of the ranking trajectory and the highest career ranking earned. Players with the highest career peak ranking were the youngest when first ranked. For example, top 10 players were first ranked at age 15.5 years (99% CI = 14.8–15.9), 1.2 years (99% CI = 0.8–1.5) earlier than top 51–100 players. Top 10 players were also ranked in the top 100 longer than other players, holding a top 100 ranking until a mean age of 29.0 years (99% CI = 27.8–30.3) compared with age 24.4 years (99% CI = 23.7–25.2) for top 51–100 players. Ranking trajectories were more distinct with respect to player age than years from first ranking. The present study’s findings will be instructive for players, coaches, and administrators in setting goals and assessing athlete development in women’s tennis.  相似文献   

2.
ABSTRACT

Sport events that depend upon natural landscapes tend to draw athletes from urban centres to peripheral areas. In doing so these events function as tourist attractions but little is known about the way participating athletes understand these places. This study explores the ways that one type of sport traveller (i.e. ultramarathon runners) understands the host destination (Grande Cache, Canada) as a place of training and competition. A volunteer employed photography data collection method was used along with an inductive thematic analysis. Four themes emerged including place as: (a) landscape, (b) sport competition, (c) community, and (d) an introspective self-portrait. First, under the landscape theme runners saw place as sublime nature during the training camp (TC) and a terrain to be conquered during the race. Second, the sport competition theme reflected place as the event with the competition being the filter through which all other aspects of the setting were understood. Third, the setting was characterized as a place of community that fostered social connection and celebration. Finally, the introspective self-portrait theme focused on the runners themselves as they centred their identity within the setting. While landscape was a dominant theme during the TC visit, the sport competition and community themes became more salient during the competition weekend. The introspective self-portrait theme was strong during both visits. Study findings suggest that runners were attached to the setting through ‘place identity’ in addition to their dependence on it to facilitate the ultramarathon event.  相似文献   

3.
The purpose of this study was to examine the relationship between coaching competency and team conflict, at individual and team levels, over the season. The participants were professional female and male soccer players, who participated in the First and Second Division. A longitudinal study was performed. At Time 1, the sample of participants consisted of 581 soccer players aged between 15 and 39 years. At Time 2, 549 players were recruited from the original sample aged between 15 and 37 years. Finally, at Time 3, the sample comprised 576 players aged between 15 and 37 years. All participants completed a multi-section questionnaire assessing coaching competency (motivation, game strategy, technique competency, and character-building competency) and team conflict (task conflict and relationship conflict). Results showed that both task and relationship conflict increased significantly over time. Multilevel modelling analysis showed that game strategy and character-building competencies negatively predicted both task and relationship conflicts at the individual level, whereas motivation competency was also added as a significant predictor of task conflict at the team level. Moreover, technique competency positively predicted task conflict at the team level. The current study suggests the importance of coaching competency in group dynamics in sport.  相似文献   

4.
5.
The influence of scaling court-size and net height on children’s tennis performance was examined. Sixteen boys (9.7 ± 0.5 years) had to perform a 30-min match in four different conditions, where court-size and/or net height were scaled by using a scaling ratio based on the differences in temporal demands between the children and the adult game. These 30-min matches were analysed using Tennis Analyst (FairPlay Ltd., Jindalee, QLD, Australia) software to determine typical tennis match performance characteristics. Children hit more winners, more forced errors, played more volleys, struck more shots from a comfortable height and played in a more forward court position when the net was scaled. Scaling both the court and net lead to a faster children’s game, more closely approximating what is typical of the adult game. The differences between the typical tennis performance variables recorded suggested that scaling the net led to a more aggressive way of playing. Further, children enjoyed playing on the standard court–scaled net condition more than standard adult conditions. It is suggested that optimising the scaling of net height may be as critical as other task constraints, such as racquet length or court-size, as it leads to a more engaging learning environment for experienced children.  相似文献   

6.
This article draws on the theoretical concepts of Pierre Bourdieu to provide an explanatory account of how socialisation and the hidden curriculum within coaching practice contribute toward the formation of social identities and powerful schemes of internalised dispositions. Drawing on a 10 month ethnography within professional football, the research found that day-to-day practice was ideologically laden and served the production, reproduction and incorporation of socialised agents into the prevailing ‘legitimate’ culture. The legitimacies embodied included respect for authority, hierarchical awareness, control, obedience, collectivity, work ethic and winning.  相似文献   

7.
This study involved a systematic video analysis of 16 anterior cruciate ligament (ACL) injuries sustained by elite-level netball players during televised games in order to describe the game situation, the movement patterns involved, the player’s behaviour, and a potential injury mechanism. Eight of the ACL injuries were classified as “indirect contact” and eight as “non-contact”. Two common scenarios were identified. In Scenario A the player was jumping to receive or intercept a pass and whilst competing for the ball experienced a perturbation in the air. As a result the player’s landing was unbalanced with loading occurring predominantly on the knee of the injured side. In Scenario B the player was generally in a good position at ground contact, but then noticeably altered the alignment of the trunk before the landing was completed. This involved rotating and laterally flexing the trunk without altering the alignment of the feet. Apparent knee valgus collapse on the knee of the injured side was observed in 3/6 Scenario A cases and 5/6 Scenario B cases. Players may benefit from landing training programmes that incorporate tasks that use a ball and include decision-making components or require players to learn to cope with being unbalanced.  相似文献   

8.
The purpose of this study was to extend understanding of how athletes and coaches in a women’s cycling talent development and selection programme negotiate and normalise athlete abuse in the media. A thematic analysis of six online cycling magazine articles and their representations of the Australian women’s elite cycling development camp was analysed to explore athletic abuse and the (re)production of coaching practices using Bourdieusian theory. The findings revealed a link between the expression of coaching practice and the maltreatment of athletes. Analysis of these articles also revealed that athletes were complicit in the normalisation of coaching practices through the misrecognition of social power embedded in the coaching intervention. The representations by athletes within the articles contributed narratives related to the reproduction and proliferation of abusive coaching practices. This study extends understanding of how taken for granted and power laden aspects of coaching practices can be presented in the media and highlights the implications for coaches, athletes and the general public that consume online cycling media content.  相似文献   

9.
Kinetics and full body kinematics were measured in ten elite goalkeepers diving to save high and low balls at both sides of the goal, aiming to investigate their starting position, linear and angular momentum, and legs' contribution to end-performance. Our results showed that goalkeepers adopted a starting position with a stance width of 33 ± 1% of leg length, knee flexion angle of 62 ± 18° and hip flexion angle of 63 ± 18°. The contralateral leg contributed more than the ipsilateral leg to COM velocity (p < 0.01), both for the horizontal (2.7 ± 0.1 m·s?1 versus 1.2 ± 0.1 m·s?1) and for the vertical component (3.1 ± 0.3 m·s?1 versus 0.4 ± 0.2 m·s?1). Peak horizontal and peak angular momenta were significantly larger (p < 0.01) for low dives than for high dives with a mean difference of 55 kg·m·s?1 and 9 kg·m2·s?1, respectively. In addition, peak vertical momentum was significantly larger (p < 0.01) for high dives with a mean difference between dive heights of 113 kg·m·s?1. Coaches need to highlight horizontal lateral skills and exercises (e.g. sideward push-off, sideward jumps), with emphasis on pushing-off with the contralateral leg, when training and assessing goalkeeper’s physical performance.  相似文献   

10.
Abstract

Objectives: The aim of this study was to: (a) examine the time courses of runners’ recovery-stress states within the month following a demanding Mountain Ultra-Marathon (MUM) race; and (b) explore the role of primary and secondary appraisals in these trajectories. Design: A seven-wave one-month longitudinal design was used with one measurement point within two days before the race to measure appraisals and six time points within the month following the race to assess recovery-stress states experienced by athletes. Method: A multilevel growth curve analysis approach was used among a sample of 29 MUM runners. Results: Recovery-stress states were characterized by distinct trajectories during the month following MUM race. Results of multilevel growth curve analyses showed significant linear increases of general and total recovery, significant linear decreases of general, sport-specific and total stress and a positive quadratic effect of squared time (U shape over time) on specific recovery. Primary appraisal significantly positively predicted levels of sport-specific recovery, total, general and sport-specific stress and significantly negatively predicted total and general recovery. Secondary appraisal significantly negatively predicted total and general stress. Conclusions: This study provided insights into the role played by appraisals on the recovery-stress states experienced by MUM runners the month following a demanding MUM race. Operational strategies were suggested in order to optimize the recovery-stress balance and in turn psychological adaptation processes in response to an ultra-endurance race.  相似文献   

11.
Given that research outside of sport and exercise has found that stigma may cause severe consequences (e.g. depression), it is important to explore the concept in regard to its connection to socio-cultural issues in the development and persistence of stigmatisation in sporting contexts. Analytic autoethnography and Goffman’s theory of stigma was used to explore one female swimmer’s experiences of ‘enacted’ and ‘felt’ competitive performance stigma occurring in elite swimming and a masters swimming context. Competitive performance stigma has not been conceptualised or explored as a stigma type in sport research, however through the presentation and analysis of two vignettes and the use of Goffman, this is achieved. The social agents that contributed to both ‘enacted’ and ‘felt’ competitive performance stigma and the consequences/effects (e.g. withdrawal from sport, feelings of shame) for this swimmer are highlighted. Our analysis further highlights the role of particular cultural insiders (e.g. coaches, team managers and other swimmers) in the reproduction of competitive performance stigma through acts of labelling, discrimination and social isolation. These acts positioned the female swimmer as an ‘outsider’ because of her competitive performance which in turn led to her withdrawal from these two sporting contexts highlighting the implications for recipients of stigmatisation.  相似文献   

12.
13.
The XVII 2002 Commonwealth Games held in Manchester, England, was the first major international multi-sport event to include elite athletes with disabilities (EADs) in its main sports programme and medal table. In this exploratory article we seek to examine some of the complex issues surrounding the inclusion of EADs in the Manchester Games by analysing the coverage afforded those athletes by six national British newspapers. The results suggest that: (1) there was a tendency by the British media to discuss the performances of EADs in terms more-or-less consistent with a medicalized understanding of disability; (2) the inclusion of EADs in the Games signalled the ‘end of a sporting apartheid’ between ‘able-bodied’ athletes and EADs; and (3) that the participation of EADs in the Games was said to reflect the alleged growing ‘inclusion’ of people with disabilities in the wider society more broadly. The paper concludes by discussing some of the unintended consequences of including EADs in the Games, including those brought about by the classification system used to group athletes into events according to their particular impairment. Those which were associated with the supposed need for greater media coverage of EADs in ‘able-bodied’ sports competitions such as the Commonsealth Games.  相似文献   

14.
Through inter-contextual designs, the present set of experiments sought to explore whether the colour yellow would impact on social perceptions of sportspersonship exclusively in relation to competitive cycling. In Experiment 1 (N = 149), a silhouette image of a cyclist on a yellow background yielded lower perceptions of sportspersonship in comparison to grey or to the context of motocross, regardless of the colour. That interaction was conceptually replicated in Experiment 2 (N = 146) while changing measures (i.e., adaptation of the World Anti-Doping Code) and the context of comparison to sprinting. Furthermore, female and male observers’ scores did not differ significantly thereby suggesting that yellow impacted on perceived sportspersonship similarly across gender. On the whole, those findings suggest that yellow can generate negative impressions of racing cyclists because, with years, this colour took on a meaning of opportunism from frequent pairings with doping. We close with discussing a number of limitations and future research avenues.  相似文献   

15.
The game of hurling is ranked as one of the fastest and most skilful field games in the world. It is played by a stick, hurley, made of ash wood and a ball, sliotar, made of a cork core or similar viscoelastic materials. Better standardisation of the game equipment requires analysing impacts to quantify precisely the effect of variations in equipment design on the resultant impact force at low and high striking speeds. Therefore, the purpose of the present study was to use a high-speed camera to (1) characterise the impact dynamics in term of impact force magnitude and duration, and (2) investigate whether a relationship exists between the game equipment and the magnitude of the impact force. An air cannon unit (ACU) test rig was set up to cause the sliotar to strike the hurley at predetermined speeds. A high-speed camera operating at 12,500 frames per second (fps) was used to capture 32 experimental impacts covering a range of sliotar and hurley brands, impact locations and impact speeds. The factor ??sliotar brand?? was identified as the most significant factor for the impact force among other main factors and two-factor interactions at a constant speed and it had a significant effect with up to 27?% difference between sliotar brands. It was demonstrated that, at higher impact speeds, the force?Cdeformation curves of the sliotar brands varied significantly, even though similar force?Cdeformation curves have been reported at quasi-static compression and similar COR values at low impact speeds using the standard free-drop test. This is the first known study to characterise the unique, highly non-linear and anisotropic sliotar?Churley impact using high-speed camera technology. It highlights the need for a tighter standard for sliotar materials and manufacturing to increase uniformity between different brands and strongly suggests that the standard free-drop test is not sufficient to characterise and compare game equipment.  相似文献   

16.
17.
18.
The introduction of decision-aid technology in sport, such as goal-line technology (GLT) in football, has generated minimal literature on supporters’ perspectives. This paper aims to investigate Scottish football supporters’ perceptions towards GLT. Two hundred and seventy Scottish supporters completed a questionnaire to assess their satisfaction with GLT and factors that influence their level of satisfaction. The majority of Scottish supporters trust the technology applied in football and favours its use. However, they are dissatisfied with GLT in part because GLT is considered to detract from the atmosphere resulting from contentious goals which supporters appreciate and lessen the debate around crucial decisions. Findings also showed that football supporters are against GLT viewing in the stadium and do not welcome future decision-aid technology in football.  相似文献   

19.
20.
《Sport Management Review》2016,19(2):133-145
The purpose of this study was to examine Olympic athletes’ self-presentation on Instagram, a social media outlet on which users post photographs as their primary communication mechanism, in order to develop an understanding of the ways in which athletes use this medium as a communication and marketing tool to build their personal brand. Additionally, this research sought to understand whether differences existed between the utilisation of Instagram by male and female athletes. Drawing on Goffman's (1959) theory of self-presentation, this study examined eight purposively selected Olympic athletes’ Instagram photos. Findings revealed similarities to previous research on athletes’ use of written social media outlets such as Facebook and Twitter, as the majority of photos posted by athletes were personal in nature, thus reflecting backstage performance strategies according to self-presentation theory. The results indicated that female athletes were more likely to share photos of themselves and photos taken in private settings, but male athletes who posted a wider variety of photos encouraged greater engagement from their followers. Personal brand management implications for athletes and sport organisations are examined in greater detail in the discussion.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号