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1.
The idea that dietary supplements can improve athletic performance is popular among athletes. The use of antioxidant supplements is widespread among endurance athletes because of evidence that free radicals contribute to muscle fatigue during prolonged exercise. Furthermore, interest in vitamin D supplementation is increasing in response to studies indicating that vitamin D deficiency exists in athletic populations. This review explores the rationale for supplementation with both antioxidants and vitamin D and discusses the evidence to support and deny the benefits of these dietary supplements. The issue of whether athletes should use antioxidant supplements remains highly controversial. Nonetheless, at present there is limited scientific evidence to recommend antioxidant supplements to athletes or other physically active individuals. Therefore, athletes should consult with their health care professional and/or nutritionist when considering antioxidant supplementation. The issue of whether athletes should supplement with vitamin D is also controversial. While arguments for and against vitamin D supplementation exist, additional research is required to determine whether vitamin D supplementation is beneficial to athletes. Nevertheless, based upon the growing evidence that many athletic populations are vitamin D deficient or insufficient, it is recommended that athletes monitor their serum vitamin D concentration and consult with their health care professional and/or nutritionist to determine if they would derive health benefits from vitamin D supplementation.  相似文献   

2.
This study’s objective was to collect items from experienced sports physicians, relating to the presence and severity of overuse wrist injuries in young athletes, for developing a measurement instrument for signals of overuse wrist injury. Seven Dutch elite sports physicians involved in guidance and treatment of young athletes in wrist-loading sports (gymnastics, tennis, judo, field hockey, volleyball and rowing) participated in a focus group. They discussed signals and limitations related to overuse wrist injuries in young athletes. Data were coded and categorised into signals and limitations with subcategories, using an inductive approach. Of the resulting 61 signals and limitations in nineteen (sub)categories, 20 were considered important, forming a comprehensive item set for identifying overuse wrist injury in young athletes. Signals such as pain, “click”, crepitations, swelling and limited range of motion were marked useful for early identification of overuse wrist injury. Limitations in movement and performance were considered indicative of severe overuse injury but less relevant for initial injury identification. The focus group provided 17 important signals and 3 important limitations indicative of overuse wrist injury. These provide the basis for a valid measurement instrument for identifying overuse wrist injury in young athletes, with equal emphasis on pain and on other symptoms.  相似文献   

3.
Although social and personal relationships are vital for productivity, health and wellbeing, conflict is inevitable and is likely to cause upset and hurt feelings as well as anxiety and distrust. Despite the potentially central role of interpersonal conflict in sport, researchers have yet to pay concerted attention to exploring the nature of conflict, its antecedents and consequences. Following a thorough literature search 80 research papers were identified, of which only a small number (6) studied interpersonal conflict directly, most captured dysfunctional interpersonal processes such as breakdown of communication. The current review aims to provide a critical summary of the existing literature around the psychological construct of interpersonal conflict, including its antecedents, management strategies and outcomes within the context of coach–athlete relationships as well as other relational contexts in sport. Based on the relevant literature, a framework of interpersonal conflict is proposed, which includes a specific focus on a key dyad within sport coaching – namely the coach–athlete dyad. Future research directions and potential practical implications for sport psychology consultants, coach educators, coaches and athletes as well as other stakeholders are discussed.  相似文献   

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Exercise dependence is a condition that involves a preoccupation and involvement with training and exercise, and has serious health and performance consequences for athletes. We examined the validity of a biopsychosocial model to explain the development and maintenance of exercise dependence among elite Australian athletes. Participants were 234 elite Australian athletes recruited from institutes and academies of sport. Thirty-four percent of elite athletes were classified as having exercise dependence based on high scores on the measure of exercise dependence. These athletes had a higher body mass index, and more extreme and maladaptive exercise beliefs compared to non-dependent athletes. They also reported higher pressure from coaches and teammates, and lower social support, compared to athletes who were not exercise dependent. These results support the utility of a biopsychosocial model of exercise dependence in understanding the aetiology of exercise dependence among elite athletes. Limitations of the study and future research directions are highlighted.  相似文献   

6.
This study examined the relation between losing a game and players’ destructive voice about the coach. As team performances would suffer when such behaviours are not managed properly, we tested the motivational climate as a potential mechanism by which coaches can manage these destructive behaviours. Twelve volleyball and basketball teams (= 136) were weekly assessed during eight weeks using questionnaires. Players rated the extent to which their teammates expressed destructive voice about their coach. Each player’s indegree centrality (i.e. the average score received from all teammates) functioned as measurement of his/her destructive voice about the coach. As hypothesized, losing a game increased players’ expression of destructive voice about the coach. At both the within- and between-person level, perceived mastery (performance) climate negatively (positively) predicted players’ destructive voice about the coach. When players perceived a more salient performance climate than usual after a loss, their increase in destructive voice about the coach was magnified. These results highlight the dynamics of players’ destructive voice about the coach and how a single loss can start the utterance of such voice. A coach would be able to counter this process by increasing the focus on a mastery rather than a performance climate.  相似文献   

7.
Characteristic issues surrounding parents in youth sport include examples of negative verbal and non-verbal behaviour demonstrated during competition. Numerous studies have done well to highlight while parents possess a great potential for positively influencing the sport experience, they can also exert a considerable negative influence by engaging in a range of non-preferred and inappropriate behaviours. There is certainly a need to further understand the nature of the sport-parenting paradigm given that encouraging and supportive parental involvement is a critical factor in promoting enjoyment and intrinsic motivation among participants. This is particularly important given that children's preferred parental behaviours are temporally dependent. That is, different types of parental involvement are preferred before, during and after competitive sport. However, one aspect of parental involvement in youth sport which has been largely overlooked is the post-game setting. Drawing on qualitative data derived from focus groups and individual interviews with 86 parents and children involved in junior Australian football, this paper reveals an aspect of the sport-parenting role which can further enhance or undermine the youth sport experience. Specifically, it reveals an intriguing insight into the way that parents engage in ‘debriefing’ children's performances—representing a challenge for parents who strive to engender a positive and supportive influence in youth sport. While the concept of sport-parenting receives much attention within the competitive setting, this paper argues that in order to enhance the quality of parental involvement in youth sport, much can be learnt from exploring ‘what happens after the game’.  相似文献   

8.
Historically, sports journalists have been the ones who predominately shape and define dominant narrative discourse of local and global sports. But, with the advent of social media and internet technologies, this is no longer the case. The digital media technologies now allow athletes, fans and sports organizations to impose their own narrative frames on sporting events in the real time. This has changed the tenor and tone of sport communication. With Shooting Stars Sports club of Ibadan, a legendary and pacesetter football club in Nigeria, as its case study, this paper examines why and how football clubs are appropriating social media and web technologies for information dissemination and live match commentaries in the Nigerian context.  相似文献   

9.
I argue that we have good reason to reject Bernard Suits’ assertion that game-playing is the ideal of human existence, in the absence of a suitably robust account of utopian games. The chief motivating force behind this rejection rests in the fact that Suits begs the question that there exists some possible set of games-by-design in his utopia, such that the playing of (a sufficient number of) its members would sustain an existentially meaningful existence for his utopians, in the event of a hypo-instrumental culture of material superabundance obtaining. But the set of utopian games is unknown and unknowable. Thus any implications of Suits’ vision for the utilization of our leisure time in the present are vitiated by the collapse of his normative ideal: his ‘metaphysics of leisure’ misses its mark.  相似文献   

10.
At the beginning of the 2013/2014 season in England and Wales, 90 head coaches of the 92 men's national professional football league clubs and 20 of the 22 men's professional rugby union clubs had tenure as a professional elite player in their respective sports. Moreover, Rynne [(2014). ‘Fast track’ and ‘traditional path’ coaches: Affordances, agency and social capital. Sport, Education and Society, 19, 299–313] has claimed that many former elite athletes are ‘fast-tracked’ through formal accreditation structures into these high-performance coaching roles. The reasons why former elite athletes dominate head coaching roles in professional sports clubs and why a ‘fast-track’ pathway from elite athlete to high-performance coach is supported remain unclear. Thereby the present study sought to address this issue by investigating the basis for ‘fast-tracked’ head coaching appointments. Eight male directors of men's professional football and rugby union clubs in England were interviewed to examine how particular coaching skills and sources of knowledge were valorised. Drawing upon Bourdieu's conceptual framework, the results suggested that head coaching appointments were often based upon the perceived ability of head coaches gaining player ‘respect’. Experiences gained during earlier athletic careers were assumed to provide head coaches with the ability to develop practical sense and an elite sporting habitus commensurate with the requirements of the field of elite sports coaching. This included leadership and practical coaching skills to develop technical and tactical astuteness, from which, ‘respect’ could be quickly gained and maintained. The development of coaching skills was rarely associated with only formal coaching qualifications. The ‘fast-tracking’ of former athletes for high-performance coaching roles was promoted by directors to ensure the perpetuation of specific playing and coaching philosophies. Consequently, this may exclude groups from coaching roles in elite men's sport. The paper concludes by outlining how these findings might imply a disjuncture between the skills promoted during formal coaching qualifications and the expectations club directors have of elite coaches in these sports.  相似文献   

11.
The article presents an analysis of 93 essays written in an upper secondary school context. The essays were collected in relation to a larger research project, which went on for 5 years in a Danish upper secondary school (2010–2015). The material represents both genders and the students are 15–17 years old. We deploy a theoretical framework taken from Norbert Elias’ notion on established-outsider relations [Elias, N., &; Scotson, J. L. (1994 [1965]). The established and the outsiders. London: SAGE] as well as his use of personal pronouns [Elias, N. (1978). What is sociology? London: Hutchinson, Elias, N. (2001). The society of individuals. New York: The Continuum International Publishing Group] in illustrating how people negotiate, position and navigate within figurational contexts [Elias, N. (1994 [1939]). The civilizing proces. Oxford: Blackwell.]. We do this in an effort to interpret how young people negotiate ‘we-I-relations’ when it comes to their sporting identity. Elias’ processual framework provides a tool for a much needed analysis of how young people continually orientate and develop their sense of selves. The web of human interdependencies and processes of change are key words when it comes to understanding the social practices and doings of the students’ constructions of self-steering. What social scientists may see as laziness and drop-outs of sports [Seippel, Ø. (2016). Prek, vekker og kjedelig? Trening og mening blant ungdom: 1985–2013. In Ø. Seippel, M. K. Sisjord, &; Å Strandbu (Eds.), Ungdom og Idrett. Oslo: Cappelen Damm Akademisk] can in the essays of students be analysed as a struggle for group connectedness and social inclusion in the classroom. The results of our research show that identity is a multiple concept and an ongoing process of emotional work [Elias, N. (1987). On human beings and their emotions: A process-sociological essay. Theory Culture Society, 4, 339–361], but also a power balance of playing and presenting what is imagined as the right performance as not being shamed as outcasts.  相似文献   

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Career development is crucial to the success of individuals, organizations and industries. As such, in many professions there are prescribed career development processes underpinned by legal and institutional policies that drive managerial practice. Although there has been sustained interest in understanding career development for athletes and building managerial strategies to assist in the process, there is little empirical knowledge about career development of coaches, and how management may assist in the process. The aim of this study is to explore the way in which sport policy discourse and agendas have impacted coach career development. This study demonstrates that coaches’ careers are not part of the policy discourse despite their important role in athlete performance, career development and sport organization development and success. Coaches are the key performance managers in sport and yet they are ignored by sport policy makers and managers when considering the development of the Australian sport workforce.  相似文献   

14.
《Sport Management Review》2014,17(2):190-204
Previous analysis of fan motivation suggests a number of differences exist in the sport spectatorship of female and male fans, however discrepancies are present in the collective findings. We extend the literature by drawing on sport economic demand research, testing how specific game characteristics influence consumption patterns for each gender. Through the examination of NCAA football game broadcasts, our results support the importance of female pre-game viewership to establish fan status. By contrast, among the many variables tested, gendered-differences in the impact on game viewership are evident only with respect to income and local team participation. Moreover, we do not find differences related to anticipated or actual game competitiveness. We conclude that within game viewership patterns are essentially similar for female and male fans and offer thoughts regarding the practical implications of this research.  相似文献   

15.
The aim of this study was to compare three competitive swimming starts (grab, rear-weighted track, and front-weighted track). The starts were compared in terms of time and instantaneous horizontal velocity, both at take-off from the block and at 5 m from the wall. Twenty US college female swimmers performed three trials of each of the three randomly ordered starts. Swimmers left the block significantly sooner using the front-weighted track start (0.80 s) than the other two starts (both 0.87 s; P < 0.001). In the rear-weighted track start, however, the athletes left the blocks with significantly higher horizontal velocity than in the grab or front-weighted track start (3.99 vs. 3.87 and 3.90 m/s, respectively; each P < 0.001). By 5 m, the front-weighted track start maintained its time advantage over the grab start (2.19 vs. 2.24 s; P = 0.008) but not the rear-weighted track start (2.19 vs. 2.21 s; P = 0.336). However, the rear-weighted track start had a significant advantage over the front-weighted track start in terms of instantaneous horizontal velocity at 5 m (2.25 vs. 2.18 m/s; P = 0.009). Therefore, the rear-weighted track start had a better combination of time and velocity than the front-weighted track start. There was also a trend for the rear-weighted track start to have higher velocity at 5 m than the grab start, although this did not reach statistical significance (2.25 vs. 2.20 m/s; P = 0.042). Overall, these results favour the rear-weighted track start for female swimmers even though most of the athletes had little or no prior experience with it. Additional research is needed to determine whether males would respond similarly to females in these three different swimming starts.  相似文献   

16.
The aim of this study was to compare three competitive swimming starts (grab, rear-weighted track, and front-weighted track). The starts were compared in terms of time and instantaneous horizontal velocity, both at take-off from the block and at 5 m from the wall. Twenty US college female swimmers performed three trials of each of the three randomly ordered starts. Swimmers left the block significantly sooner using the front-weighted track start (0.80 s) than the other two starts (both 0.87 s; P < 0.001). In the rear-weighted track start, however, the athletes left the blocks with significantly higher horizontal velocity than in the grab or front-weighted track start (3.99 vs. 3.87 and 3.90 m/s, respectively; each P < 0.001). By 5 m, the front-weighted track start maintained its time advantage over the grab start (2.19 vs. 2.24s; P = 0.008) but not the rear-weighted track start (2.19 vs. 2.21 s; P = 0.336). However, the rear-weighted track start had a significant advantage over the front-weighted track start in terms of instantaneous horizontal velocity at 5 m (2.25 vs. 2.18 m/s; P = 0.009). Therefore, the rear-weighted track start had a better combination of time and velocity than the front-weighted track start. There was also a trend for the rear-weighted track start to have higher velocity at 5 m than the grab start, although this did not reach statistical significance (2.25 vs. 2.20 m/s; P = 0.042). Overall, these results favour the rear-weighted track start for female swimmers even though most of the athletes had little or no prior experience with it. Additional research is needed to determine whether males would respond similarly to females in these three different swimming starts.  相似文献   

17.
Abstract

The Americans with Disabilities Act mandated the inclusion of people with disabilities in all aspects of social and civil life in the United States including sports. As a result, sport and recreation programmes designed for typically developing youth began to include children with disabilities. One popular recreation context providing sport activities for youth with disabilities is summer camp. Research on inclusive camps has shown mixed results, with some studies suggesting that children with disabilities continue to experience exclusion from physical activity and leadership opportunities, social isolation, and stigma. This conceptual and argumentative essay will review current research on inclusive camps and will argue that, until the mechanisms of inclusive camps are better understood and applied in practice, camps for children with disabilities may be the best delivery system to promote inclusion and a sense of belonging, arguably one of the most important outcomes of camp.  相似文献   

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In the last few years there has been a significant increase in the number and scope of social science research into doping in sport. However, despite this apparent progress, the field remains a disparate body of work and lacks both direction and leadership. Whilst sport management is a discipline that is well suited to provide such leadership, scholarly research into this controversial topic has not been published widely in sport management journals. This special issue redresses this gap by bringing together a range of scholarly articles that represent a variety of perspectives by authors from North America, Europe and Australia. The issues and challenges covered are varied, but each paper brings a common theme: the implications for the management of doping in sport. The six papers in this Special Issue of Sport Management Review are a significant addition to the slowly growing body of sport management scholarly work on doping in sport. It is hoped that future research will be prompted with this Special Issue and the discipline of sport management will recognize and respond to the challenges presented by doping.  相似文献   

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