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1.
The Zephyr? BioHarness? (Zephyr Technology, Auckland, New Zealand) is a wireless physiological monitoring system that has the ability to measure respiratory rate unobtrusively. However, the ability of the BioHarness? to accurately and reproducibly determine respiratory rate across a range of intensities is currently unknown. The aim of this study was to determine the reliability and validity of the BioHarness? to measure respiratory rate. Twelve physically active participants attended the laboratory on two separate occasions to perform an incremental treadmill test to volitional exhaustion. Respiratory rate (br.min?1) was measured continuously and simultaneously during both trials using both a Metamax 3b online gas-analysis system (Cortex, Leipzig, Germany) and the BioHarness?. The mean respiratory rate measured by the Metamax 3b and BioHarness? did not differ statistically (p < .05) for most speeds, except for 70% of peak treadmill speed (p = .039). Mean absolute differences were small (2 to 3 br.min?1; typical error = 4.4%–8.7%). The typical errors for the test 1 versus the test 2 comparisons for respiratory rate ranged from 1.4 to 2.8 br.min?1 (typical error % = 4.3–7.3) for the BioHarness?. There were no significant differences between devices for the absolute respiratory rate, speed, and percent of respiratory rate maximum at the respiratory breakpoint (p > .05). The BioHarness? is a valid and reliable device for determining respiratory rate and the respiratory breakpoint during exercise of varying intensity.  相似文献   

2.
Greg Ryan 《国际体育史杂志》2016,33(17):2123-2138
Abstract

This paper focuses generally on the history of women’s cricket during the earlier twentieth century, primarily on the 1934–35 England women’s cricket tour of Australia and New Zealand, and more so on the New Zealand dimension. The tour occurred at a critical time for women’s team sport in both countries in that from the 1920s consistent local and then national competitions brought continuity to previously fragmented activities. Hence the tour provides a useful barometer for a wide range of attitudes to sporting participation by women and reveals contrasts between Britain and Australasia. At the same time, there are specific attitudes to the playing of cricket by women that need to be explored. Here there are some obvious differences between accounts in dedicated women’s cricket sources and the specialist women’s press, both of which sought to encourage the game on its own terms, and those in sources with a broader scope and male-dominated editorship which were more inclined to trivialize and disparage women’s cricket and to judge it against the men’s game.  相似文献   

3.
Abstract

The academy has not been a safe haven for Indigenous bodies, nor the epistemologies, methodologies, and practices we bring into such spaces. The omission of Indigenous views from standard historical accounts was (and remains) an essential part of asserting colonial ideologies and to the mission of colonization. There is much work to be done in the field of sport history and as an Indigenous person and sport historian, I hope to contribute to the rewriting and rerighting of sport history, in support of the larger process of decolonization. Indigenous studies is a place where I can engage in practices premised on reciprocal responsibilities, and it is a space where I feel there are substantial and urgent contributions to be made.  相似文献   

4.
Since the beginning of the 1980s, sport has appeared to be the last recourse against the worsening of living conditions, lack of job security and the ghettoisation of certain boroughs that stand out mostly because of continuing urban riots and juvenile violence. All of this is continually exaggerated by the media and politicians in their continual desire to dramatise and exaggerate. Certain sub-issues immediately emerge: what are the theoretical or ideological foundations on which this concept of making sport a lever for preventive policies is based? And what sport are we talking about? Is it the physical activities and sport (PAS) practised in the schools and institutes, civil sport or sport in the streets? Why do young people increasingly abandon civil/federated sport to practise ‘adventure sports’ or self-organised sports? Can self-organised sports and, more precisely, sport played outside the tower blocks favour the ‘self-control of impulses’? And if they can, under what conditions can they favour socialisation and contribute to preventing vandalism or violent acts? If it must be admitted that the links between sport and education, sport and prevention, sport and insertion, etc., are considered to be self-evident, they are rarely analysed or questioned.  相似文献   

5.
《Sport Management Review》2015,18(4):570-582
The emotional bond between a fan and his/her favourite team is one of the most distinct attributes of spectator sport. Yet to this point, little has been done to empirically explore this unique phenomenon. The purpose of this study was to create and validate an emotional attachment to a sport team scale. Guided by attachment theory and following a well-established scale development framework, a two-factor, seven-item scale was found to be a valid and reliable instrument. The two distinct factors termed Investment (cognitive feelings put into the team) and Dividend (affective feelings derived from the team) represent a unique contribution to the field of sport management. In addition, a construct validity test provided quantitative verification of an apparent hierarchy of the emotional attachment dimensions where those with higher Investment scores appear to place a higher (somewhat irrational) value on team success compared to those with higher Dividend scores.  相似文献   

6.
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7.
Background:There is mounting evidence that regular physical activity is an important prerequisite for healthy cognitive aging.Consequently,the finding that almost one-third of the adult population does not reach the recommended level of regular physical activity calls for further public health actions.In this context,digital and home-based physical training interventions might be a promising alternative to center-based intervention programs.Thus,this systematic review aimed to summarize the curr...  相似文献   

8.
Abstract

On April 1, 2018, the new standards of compliance to the code of the World Anti-Doping Agency (WADA) came into force. The new standards impact all sports. An important amendment has been made to an article of the existing code ‘Additional Roles and Responsibility of the Parties’. Now, all international federations and the unions in agreement with WADA are obliged to reject applications for holding all sporting events from countries that do not comply with the WADA code. By then, Russian elite sport remained in isolation because the Russian Anti-Doping Agency (RUSADA) had no license from WADA until a compromise agreement allowed Russia back into international sports in September 2018. The probability of obtaining permanent return to international sport was extremely low. In order to obtain the license, Russian sport authorities were asked to agree with the reports of Professor McLaren and to admit the existence of doping support in the country at the state level, which seemed improbable. In Russia, although the new standards of the World Anti-Doping Agency code have not caused special concerns it directly impact Russian elite sport. Unless certain conditions were met by 2019, there was a high probability that Russia would not be able to attend large international competitions in the near future, including the 2020 Tokyo Olympics. The situation dictates the choice of the new strategy of development for Russian sport and new model for the fight against doping, which can be not dependent on WADA. To date, there have been no real checks on WADA’s authority other than occasional decisions in the Court of Arbitration for Sport. Academics who are critical of WADA’s functions often find themselves marginalized when the purported global doping “crisis” should bring “all hands on deck” to provide a humanistic and scientific approach that is best for athletes past, present and future. The functions of WADA in investigating, charging and punishing athletes do not contribute to sustainable development of sport and the sports industry around the world, and create unipolar environment of influence on sports development. Therefore, in this article, we describe some alternative forms and new order of regulation of the anti-doping relations in sport.  相似文献   

9.
While the Los Angeles Olympic Games in 1984 constituted Romania's best performance ever, 2012 London Olympic Games were characterised by the worst performance in its history. During the time between these two events, the country went from being a communist regime to a liberal government. This transition invites consideration of the transformation Romania's sports policy underwent and its repositioning with regard to the Olympic Movement, both before and after the 1989 turning point. Analysis suggests that, in failing to professionalise Romanian sport, the Romanian Olympic and Sports Committee (COSR) was tempted to readopt a model of state-financed sport, with the aim of reinstating the nation to its former position among the world's sporting elite.  相似文献   

10.
Objectives: To improve well-being and performance indicators in a group of Australian Football League (AFL) players via a six-week sleep optimisation programme. Design: Prospective intervention study following observations suggestive of reduced sleep and excessive daytime sleepiness in an AFL group. Methods: Athletes from the Adelaide Football Club were invited to participate if they had played AFL senior-level football for 1–5 years, or if they had excessive daytime sleepiness (Epworth Sleepiness Scale [ESS] >10), measured via ESS. An initial education session explained normal sleep needs, and how to achieve increased sleep duration and quality. Participants (n?=?25) received ongoing feedback on their sleep, and a mid-programme education and feedback session. Sleep duration, quality and related outcomes were measured during week one and at the conclusion of the six-week intervention period using sleep diaries, actigraphy, ESS, Pittsburgh Sleep Quality Index, Profile of Mood States, Training Distress Scale, Perceived Stress Scale and the Psychomotor Vigilance Task. Results: Sleep diaries demonstrated an increase in total sleep time of approximately 20?min (498.8?±?53.8 to 518.7?±?34.3; p?<?.05) and a 2% increase in sleep efficiency (p?<?0.05). There was a corresponding increase in vigour (p?<?0.001) and decrease in fatigue (p?<?0.05). Conclusions: Improvements in measures of sleep efficiency, fatigue and vigour indicate that a sleep optimisation programme may improve athletes’ well-being. More research is required into the effects of sleep optimisation on athletic performance.  相似文献   

11.
BackgroundDuring human locomotion, a sufficiently stiff foot allows the ankle plantar flexors to generate large propulsive powers. Increasing foot stiffness (e.g., via a carbon plate) increases the ankle's external moment arm in relation to the internal moment arm (i.e., increasing gear ratio), reduces plantar flexor muscles’ shortening velocity, and enhances muscle force production. In contrast, when activation of the foot's intrinsic muscles is impaired, there is a reduction in foot and ankle work and metatarsophalangeal joint stiffness. We speculated that the reduced capacity to actively control metatarsophalangeal joint stiffness may impair the gearing function of the foot at the ankle.MethodsWe used a tibial nerve block to examine the direct effects of the intrinsic foot muscles on ankle joint kinetics, in vivo medial gastrocnemius’ musculotendinous dynamics, and ankle gear ratio on 14 participants during maximal vertical jumping.ResultsUnder the nerve block, the internal ankle plantar flexion moment decreased (p = 0.004) alongside a reduction in external moment arm length (p = 0.021) and ankle joint gear ratio (p = 0.049) when compared to the non-blocked condition. Although medial gastrocnemius muscle–tendon unit and fascicle velocity were not different between conditions, the Achilles tendon was shorter during propulsion in the nerve block condition (p < 0.001).ConclusionIn addition to their known role of regulating the energetic function of the foot, our data indicate that the intrinsic foot muscles also act to optimize ankle joint torque production and leverage during the propulsion phase of vertical jumping.  相似文献   

12.
This is an analysis of two East Asian Nations, South Korea and China, and a descent from growing friendship to growing friction in economics, politics and sport – with sport as an analogue of fragmentation and the Guangzhou Asian Games as an analogous illustration of crescive tension between the two nations in economics, politics and sport in the twenty-first century.  相似文献   

13.
This paper explores the importance soccer can play in the lives, identities and memories of migrants by drawing on 32 oral history interviews conducted with Italians who settled in Sydney in the 1950s and 1960s. Sport can provide an illuminating lens for analysing the experience of migrants, because not only are sports sites of individual, regional, national and transnational identities, they can also facilitate social inclusion or, conversely, become sites of exclusion. Soccer in Australia is often celebrated as a multicultural game. At the same time, the expressions of the complex histories of migration, colonialism, exploitation and racial and ethnic discrimination that have shaped the game have often been silenced. The interviews show that soccer has been a key site of negotiation, agency and at times resistance for first and second generation migrants. We also argue that, while it is the de-ethnicisation of soccer that has understandably dominated media, political and academic debate, the concern of these migrants in recent years has been mostly with the loss of memory and with the removal of an important history made of shared relationships and bonding experiences.  相似文献   

14.
Explaining that it is not possible to divide human activity (political, economic, social, sport, etc.) into different sectors, as they all originate from the same actors, Norbert Elias and Eric Dunning thus came to formulate the central hypothesis of a network which linked the process of pacification of customs, the development of a parliamentary system for society, the state monopoly of violence, the euphemisation of violence in the aristocracy, the genesis of sport and, by recursion, the roles and functions of modern sports in the state control of violence and the learning of self-control. Elias and Dunning contrast modern sports with the ancient games, euphemisation and the persistence of violence, ‘sport’ leisure characteristic of ‘modern’ societies and traditional games in the ‘ancient’ societies, which accompanied the religious calendars and rites of passage. But do they really question society? This paper shows how the problems posed by Elias' theory are, essentially, of three types: first, those linked to the methodology used; second, those related to the limits imposed by the notion of self-constraint; and, finally, those concerning the pacifying function attributed to sport.  相似文献   

15.
Abstract

This paper examines the effect of participating in a web-based health programme that promotes personal tracking of high school students’ own measurements of a number of health-related parameters. Danish cross-sectional survey data were used to examine the effects of the health programme on various health measures. Both quantile regression models and standard ordinary least squares (OLS) models were used to explore the correlations between the students’ participation in the health programme and their body mass index (BMI), body fat percentage, aerobic fitness, and well-being. Participation in the health programme increased BMI and aerobic fitness among students with a BMI or an aerobic fitness value ranging from the 25th percentile to the 75th percentile and reduced body fat percentage among students with the highest percentages of body fat. In addition, the health programme led to an increased feeling of wellbeing among students, especially those with high BMI levels and poor aerobic fitness. As the schools participated in the health programme on voluntary basis and at a financial cost to themselves, the positive effects of participation found can only be stated to be valid among students from committed schools.  相似文献   

16.
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17.
Abstract

The study was aimed to explore distinct players’ groups according to their anthropometric and individual features, and to identify the key performance indicators that discriminate player groups. Match statistics, anthropometric and personal features of 1188 male players competing during 2015–2017 main draw Grand Slam singles events were collected. Height, weight, experience, handedness and backhand style were used to automatically classify players into different clusters through unsupervised learning model. Afterwards, 29 match variables were analysed through MANOVA and discriminant analysis in order to evaluate the different match performance among player groups and to identify the key performance indicators that best differentiate player clusters in each Grand Slam. The analysis revealed the existence of four clusters, they were classified as Big-sized Right Two-handed Players (n?=?387), Medium-sized Right One-handed Players (n?=?265), Small-sized Right Two-handed Players (n?=?414), and Left Two-handed Players (n?=?122). Serve, winner, net and physical performance-related indicators (Structure Coefficient?≥?|0.30|) were showed to be the maximum contributors to the group separation. Left-handed players were the most homogenous group in performance. Taller players outperformed their peers in all Slams except for Roland Garros, where left-handed players demonstrated certain advantage playing on slow-pace surface. In Wimbledon and US Open, Medium-sized Right One-handed Players showed better net and physical performance. The advantage of left-handed player is over-represented at elite level. Current findings promote a better understanding of match-play from distinct player groups and offer information on evaluating contextual variability for achieving better performances.  相似文献   

18.
《Sport Management Review》2020,23(5):964-977
The purpose of this study was to examine the relationships among coaches’ authentic leadership and athletes’ psychological capital (PsyCap), performance satisfaction, and psychological well-being. The authors recruited 224 athletes participating in intercollegiate athletics in the United States. The results indicated that the authentic leadership of the head coaches positively influenced the athletes’ PsyCap levels. The enhanced PsyCap, in turn, positively influenced both performance satisfaction and psychological well-being. The interaction effect of student development was found in the relationship between authentic leadership and PsyCap. The findings contribute to an improved understanding of a head coach’s authentic behaviors in sport teams, and also illuminate how athletes’ performance satisfaction and psychological well-being can be augmented by PsyCap enhancement.  相似文献   

19.
ABSTRACT

The ACL-Return to Sport after Injury (ACL-RSI) and Injury-Psychological Readiness to Return to Sport (I-PRRS) scales were developed to assess psychological factors associated with return to sports. Validity and reliability have been determined. The aim of this study was to investigate the responsiveness of the Dutch ACL-RSI and I-PRRS. Seventy patients with ACL reconstruction completed both scales twice 2 months apart, plus a Global Rating of Change (GRC) questionnaire. Distribution and logistic regression-based methods were used to study responsiveness. The Standardized Response Mean (SRM) for the ACL-RSI was 0.3 and for the I-PRRS 0.1, indicating low responsiveness. The minimally important change (MIC) for ACL-RSI was 2.6 and for the I-PRRS 0.9. Since the standard error of measurement (SEM) and smallest detectable change (SDC) were larger than MIC in individual patients, it does not seem possible to distinguish minimally important changes from measurement error in individual patients with either scale. At the group level responsiveness seemed sufficient; hence, both scales can be used to investigate the effectiveness of an intervention at the group level. Both scales can also be used in cross-sectional research and in clinical practice as screening instruments to identify patients at risk of not returning to sports.  相似文献   

20.
《Sport Management Review》2020,23(2):271-283
A significant body of knowledge exists around the role of intergroup relations in sport for development and peace (SFDP). However, while numerous SFDP researchers have investigated overt conflict, scholars have typically overlooked the varied nature of intergroup relations in comparatively stable SFDP environments. In addressing that issue, the authors explore intergroup relations in the context of Fiji, a country which in recent years has moved from a society characterized by the politics of coup d'état to democratic government and relatively peaceful social relations. That said, Fiji has long been shaped by a fundamental cultural divide between Indigenous Fijians (iTaukei) and Fijians of Indian ancestry (Indo-Fijians): this is reflected in the de facto separatism between these groups in relation to their role in rugby union and Association football (soccer). The authors present a qualitative framework—the Intergroup Relations Continuum (IRC)—by which to map intergroup relations as they apply in Fiji according to identity, ethnicity and sport. While the IRC is applied here in a Fijian context, the model is intended to be generalizable, aiming to provide a practical instrument for researchers, sport managers, policymakers and local stakeholders. The goal is to allow them to visually illustrate group affinities, rivalries, and sensibilities in terms of collective relationships that characterize sport and society.  相似文献   

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