Does performance level affect initial ball flight kinematics in finger and wrist-spin cricket bowlers?

Spin bowling plays a fundamental role within the game of cricket yet little is known about the initial ball kinematics in elite and pathway spin bowlers or their relationship to performance. Therefore, the purpose of this study was to record three-dimensional ball kinematics in a large and truly high level cohort of elite and pathway finger-spin (FS) and wrist-spin (WS) bowlers, identifying potential performance measures that can be subsequently used in future research. A 22-camera Vicon motion analysis system captured retro-reflective markers placed on the seam (static) and ball (dynamic) to quantify ball kinematics in 36 FS (12 elite and 24 pathway) and 20 WS (eight elite and 12 pathway) bowlers. Results indicated that FS bowlers delivered the ball with an increased axis of rotation elevation, while wrist-spin bowlers placed greater amounts of revolutions on the ball. It also highlighted that ball release (BR) velocity, revolutions and velocity/revolution index scores for both groups and seam stability for FS bowlers, and seam azimuth angle and spin axis elevation angle for WS bowlers, were discriminators of playing level. As such these variables could be used as indicators of performance (i.e. performance measures) in future research.     

Does maximising ball speed in cricket fast bowling necessitate higher ground reaction forces?

This study aimed to investigate whether high peak ground reaction forces and high average loading rates are necessary to bowl fast. Kinematic and kinetic bowling data were collected for 20 elite male fast bowlers. A moderate non-significant correlation was found between ball speed and peak vertical ground reaction force with faster bowlers tending to have lower peak vertical ground reaction force (r = ?0.364, P = 0.114). Faster ball speeds were correlated with both lower average vertical and lower average horizontal loading rates (r = ?0.452, P = 0.046 and r = ?0.484, P = 0.031, respectively). A larger horizontal (braking) impulse was associated with a faster ball speed (r = 0.574, P = 0.008) and a larger plant angle of the front leg (measured from the vertical) at front foot contact was associated with a larger horizontal impulse (r = 0.706, P = 0.001). These findings suggest that there does not necessarily need to be a trade-off between maximum ball release speed and the forces exerted on fast bowlers (peak ground reaction forces and average loading rates). Furthermore, it appears that one of the key determinants of ball speed is the horizontal impulse generated at the ground over the period from front foot contact until ball release.     

The influence of cricket fast bowlers’ front leg technique on peak ground reaction forces

Abstract

High ground reaction forces during the front foot contact phase of the bowling action are believed to be a major contributor to the high prevalence of lumbar stress fractures in fast bowlers. This study aimed to investigate the influence of front leg technique on peak ground reaction forces during the delivery stride. Three-dimensional kinematic data and ground reaction forces during the front foot contact phase were captured for 20 elite male fast bowlers. Eight kinematic parameters were determined for each performance, describing run-up speed and front leg technique, in addition to peak force and time to peak force in the vertical and horizontal directions. There were substantial variations between bowlers in both peak forces (vertical 6.7 ± 1.4 body weights; horizontal (braking) 4.5 ± 0.8 body weights) and times to peak force (vertical 0.03 ± 0.01 s; horizontal 0.03 ± 0.01 s). These differences were found to be linked to the orientation of the front leg at the instant of front foot contact. In particular, a larger plant angle and a heel strike technique were associated with lower peak forces and longer times to peak force during the front foot contact phase, which may help reduce the likelihood of lower back injuries.     

The mainstreaming of disability cricket in England and Wales: Integration ‘One Game’ at a time

Disability sport in Great Britain has, since its genesis over sixty years ago, gained greater public profile with each passing decade. Arguably, this is a result of a more direct, interventionist approach from the British government and the Sport Councils into the field of disability sport over the past twenty years. In this paper we highlight a case of integration within sport by examining the process of mainstreaming disability cricket within England and Wales. Following a review of the extant literature in this area we will draw upon Bourdieu's practice theory in order to examine the impact of the implementation of policy on the management of issues of disability in mainstream cricket. Longitudinal ethnographic data (including participant observation and semi-structured interviews) was collected on the organizations involved in this mainstreaming process. Informants were either involved in the delivery of disability cricket or in the management of disability sports partnerships. Preliminary findings suggest that true integration is still unrealized. Whether the policy seeks true integration or whether mainstreaming is simply another modernizing process seeking greater efficiencies from sport organizations is unclear. Nevertheless a number of institutional pressures from the proximal and distal external environments have provided support for generating mainstreaming initiatives at management levels. In addition to these findings we argue that an additional outcome of this research is to demonstrate the suitability of a relational approach for conceptualizing policy, its interpretation by sport managers and the implementation strategies that follow.     

Kinematic characteristics of elite men's and women's 20 km race walking and their variation during the race

The aim of this study was to analyse the important kinematic variables in elite men's and women's 20 km race walking. Thirty men and 30 women were analysed from video data recorded during the World Race Walking Cup. Video data were also recorded at four points during the European Cup Race Walking and 12 men and 12 women analysed from these data. Two camcorders operating at 50 Hz recorded at each race for 3D analysis. The two main performance determinants of speed were step length and cadence. Men were faster than women because of their greater step lengths but there was no difference in cadence. A reduction in step length was the initial cause of slowing down with later decreases in speed caused by reductions in cadence. Shorter contact times were important in optimising both step length and cadence, and faster athletes tended to have longer flight times than slower athletes. It was less clear which other kinematic variables were critical for successful walking, particularly with regard to joint angles. Different associations were found for some key variables in men and women, suggesting that their techniques may differ due to differences in height and mass.     

The role of sport in reflecting and shaping group dynamics: The “intergroup relations continuum” and its application to Fijian rugby and soccer

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.     

“Good,better, creative”: the influence of creativity on goal scoring in elite soccer

This study investigated the level of creativity of goals scored in football. Therefore, all goals in the Football FIFA World Cup 2010 and 2014, as well as the Football UEFA Euro 2016 were qualitatively examined. Three Football experts evaluated the last eight actions before each goal using a creativity scale ranging from 0 to 10 (0 = not creative, 10 = highly creative) of all goals scored via open play (311 goals in 153 matches). Level of creativity was revealed using an Analysis of Variance and the frquency of high highly creative goals using a Kruskall- Wallis Test. The results showed that the closer the actions to a goal, the more creative they were evaluated. Teams that advanced to the later rounds of the tournament demonstrated greater creativity than teams that failed to do so. High creativity in the last two actions before the actual shot on goal proved to be the best predictor for game success. In conclusion, this study is the first one to show that creativity seems to be a factor for success in high level football. Thereby it provides an empirical basis for the ongoing debate on the importance of creativity training in football.     

Reconceptualising elite athlete programmes: ‘undoing’ the politics of labelling in health and physical education

High-performance sport is a big business, with nations such as Australia and New Zealand dedicating hundreds of millions of dollars in the development of facilities and in creating sporting centres of excellence. Historically, high-performance sport and elite athlete programmes (EAPs) were regulated to an extra-curricular space in schools or local communities, but over the last couple of decades, schools in Australia and New Zealand have introduced EAPs into health and physical education (PE). Recent work has begun to explore the rationale for these programmes and their educational priorities, but little research has explored how the elite athlete body is being constructed within this curriculum space. In this paper, I consider two interrelated problems. The first concerns the conflicting discourses of winning in high-performance sport versus getting everyone healthy and active in health and PE. The second involves an explanation of how the elite athlete body is being constructed in these programmes. I argue the juxtaposition of the elite athlete body as disciplined, attractive and healthy to other bodies as lazy, unattractive and unhealthy renders the other bodies as pathological or resistant to disciplinary institutions of the school. In particular, I focus on the ways in which young people's bodies are conceptualised within EAPs in relation to recreation, health, PE and other curriculum spaces. Throughout this paper, I provide examples to illustrate how EAPs may perpetuate normative ways of thinking that legitimatise elitism in schools. I propose that under radical reform, EAPs may have the potential to provide educational value and opportunities to students. I conclude by offering the cultural studies curriculum model that retains sport and desirable educational outcomes for health and PE as an alternative to elite athlete or talent development models.     

Control,consent and complicity in the coaching of elite women’s cycling in Australia: a media analysis

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.     

The determinants of stadium attendance in elite women’s football: Evidence from the UEFA Women's Champions League

Women’s football struggles to build a solid platform in terms of fan interest. However, while an increase in gate receipts can help assist its long-term sustainability, there is limited evidence in the academic literature on the factors influencing spectator demand in women’s football. The authors investigate determinants of stadium attendance for UEFA Women's Champions League (UWCL) matches. Using regression models deployed on 554 UWCL games played between 2009/10 and 2017/18, the authors examine contextual and sport-related variables as the main predictors of stadium attendance. Findings show that there is no continuous growth of attendance over the period examined, and highlight that spectators’ interest is positively associated with five factors: stage of the competition, uncertainty of match outcome, competitive intensity, away club’s reputation and weather conditions. Football governing bodies should put in place initiatives to ensure match outcome uncertainty is maintained as this represents a key determinant to maximise stadium attendance. Based on the specific context of European women’s football, recommendations to foster its development are discussed. These include incentivising investment into the elite women’s game and designing sport policies to encourage participation at grassroots levels.     

The role of community sports coaches in creating optimal social conditions for life skill development and transferability – a salutogenic perspective

Sport is widely recognised as having the potential to enhance the personal development of socially vulnerable youth, yet there is very limited knowledge on how community sports coaches can create optimal social conditions for life skill development and transferability. We adopt a salutogenic approach in order to study whether and how community sports coaches create these optimal social conditions. Based on the salutogenic framework, a thematic analysis was conducted of 15 in-depth interviews with community sports coaches providing sports lessons to socially vulnerable youth. As part of the interviews, the sports coaches were presented with several training scenarios and asked how they would respond in specific training situations. The results showed that the sports coaches aimed to create meaningful sporting experiences for youths. These meaningful sporting experiences were considered a precondition for keeping youths engaged in the sporting activities, as well as a precondition for life skill development. The sports coaches specifically focused on creating little moments of success and on making sure that the youths felt they belonged to a group. In order to ensure that the youths could experience moments of success, specific coaching strategies were implemented to increase the youths’ comprehensibility and manageability in specific sport situations. According to the sports coaches, experiencing little moments of success could contribute to an increase in socially vulnerable youths’ understanding of the everyday challenges that they face, as well as contribute to their ability to deal with these challenges. Creating meaningful sporting experiences may help youths ‘to learn to cope' – a skill that could be beneficial over their lifespan and in different societal domains.     

Torque–velocity characteristics and contractile rate of force development in elite badminton players

Abstract

Elite badminton requires muscular endurance combined with appropriate maximal and explosive muscle strength. The musculature of the lower extremities is especially important in this context since rapid and forceful movements with the weight of the body are performed repeatedly throughout a match. In the present study, we examined various leg-strength parameters of 35 male elite badminton players who had been performing resistance exercises as part of their physical training for several years. The badminton players were compared with an age-matched reference group, the members of whom were physically active on a recreational basis, and to the same reference group after they had performed resistance training for 14 weeks. Maximal muscle strength of the knee extensor (quadriceps) and flexor muscles (hamstrings) was determined using isokinetic dynamometry. To measure explosive muscle strength, the contractile rate of force development was determined during maximal isometric muscle contractions. In general, the badminton players showed greater maximal muscle strength and contractile rate of force development than the reference group: mean quadriceps peak torque during slow concentric contraction: 3.69 Nm · kg^?1, s=0.08 vs. 3.26 Nm · kg^?1, s=0.8 (P<0.001); mean hamstring peak torque during slow concentric contraction: 1.86 Nm · kg^?1, s=0.04 vs. 1.63 Nm · kg^?1, s=0.04 (P<0.001); mean quadriceps rate of force development at 100 ms: 24.4 Nm · s^?1·kg^?1, s=0.5 vs. 22.1 Nm·s^?1 · kg^?1, s=0.6 (P<0.05); mean hamstring rate of force development at 100 ms: 11.4 Nm · s^?1·kg^?1, s=0.3 vs. 8.9 Nm · s^?1 · kg^?1, s=0.4 (P<0.05). However, after 14 weeks of resistance training the reference group achieved similar isometric and slow concentric muscle strength as the badminton players, although the badminton players still had a higher isometric rate of force development and muscle strength during fast (240° · s^?1) quadriceps contractions. Large volumes of concurrent endurance training could have attenuated the long-term development of maximal muscle strength in the badminton players. The badminton players had a higher contractile rate of force development than the reference group before and after resistance training. Greater explosive muscle strength in the badminton players might be a physiological adaptation to their badminton training.     

Physiological variables and performance markers of serving soldiers from two “elite” units of the British Army

Abstract

The aim of this study was to compare selected physiological variables and performance markers of soldiers from two “elite” units of the British Army. Ten soldiers from each of the two units were recruited for this study (n = 20). All participants completed three tests while carrying a 20 kg backpack load: (1) a maximal treadmill test using the Bruce protocol; (2) a 2 mile backpack run test specific to Unit A on a consistently flat tarmac road; and (3) a 29 km time-trial over hilly terrain typical of a mountainous area used by Unit B for performance assessment. Heart rate, maximal blood lactate concentration and performance (run time) were assessed during all three tests, with peak oxygen uptake also being measured during the maximal treadmill test. Measurements of anthropometry, isokinetic strength and mental toughness (MT48) were also recorded. There were no significant differences in terms of performance markers between the units (P > 0.05). Performance on the maximal treadmill test correlated with performance on the 2 mile backpack run test (r = ?0.57) and 29 km time-trial (r = ?0.66). Performance on the 2 mile backpack run test in turn correlated with 29 km time-trial performance (r = ?0.77), accounting for 59% of the variance. In conclusion, the maximal treadmill test and the 2 mile backpack run test are useful indicators of performance on the arduous hill march and could be employed in the screening and selection of potential recruits.     

Sport-specific and non-specific practice of strong and weak responders in junior and senior elite athletics – A matched-pairs analysis

Elite track and field athletes with greater and lesser multi-year performance improvement were compared regarding their developmental sport-specific and non-specific, organised (coach-led) and non-organised (peer-led) sporting activities. Athlete pairs were matched on gender, discipline and baseline performance in competitions (at 13/19 years). Their unequal subsequent performance development during junior (13–17 years; n = 138) and senior (19–23+ years; n = 80) age ranges defined “strong responders” and “weak responders”. Analyses revealed that junior-age strong responders accumulated more organised practice in athletics than weak responders, while the amounts of all other types of activities were indifferent. Senior-age strong responders did not accumulate a greater total sum of all kinds of sport activities or greater amounts of organised practice in athletics or non-organised involvement in athletics or other sports than weak responders. But they engaged in more organised practice and competitions in other sports over more years (9 vs. 2 years) and specialised in athletics at a later age than weak responders (16 vs. 11 years). The results were also robust among senior international medallists vs. national medallists. The findings are reflected relative to the hypotheses of “multiple sampling and functional matching”, “learning transfer as preparation for future learning” and “authenticity of variable learning experiences”.     

The ‘inclusion’ of elite athletes with disabilities in the 2002 Manchester Commonwealth Games: An exploratory analysis of British newspaper coverage

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.