How soccer players head the ball: a test of optic acceleration cancellation theory with virtual reality

We measured the movements of soccer players heading a football in a fully immersive virtual reality environment. In mid-flight the ball’s trajectory was altered from its normal quasi-parabolic path to a linear one, producing a jump in the rate of change of the angle of elevation of gaze (α) from player to ball. One reaction time later the players adjusted their speed so that the rate of change of α increased when it had been reduced and reduced it when it had been increased. Since the result of the player’s movement was to regain a value of the rate of change close to that before the disturbance, the data suggest that the players have an expectation of, and memory for, the pattern that the rate of change of α will follow during the flight. The results support the general claim that players intercepting balls use servo control strategies and are consistent with the particular claim of Optic Acceleration Cancellation theory that the servo strategy is to allow α to increase at a steadily decreasing rate.

Test performance indicators from a single soccer specific fitness test differentiate between highly trained and recreationally active soccer players

Aim. The aim of this study was to investigate whether a single soccer specific fitness test (SSFT) could differentiate between highly trained and recreationally active soccer players in selected test performance indicators. Methods. Subjects: 13 Academy Scholars (AS) from a professional soccer club and 10 Recreational Players (RP) agreed to participate in this study. Test 1-(V)over dotO(2) max was estimated from a progressive shuttle run test to exhaustion. Test 2-The SSFT was controlled by an automated procedure and alternated between walking, sprinting, jogging and cruise running speeds. Three activity blocks (1A, 2A and 3A) were separated by 3 min rest periods in which blood lactate samples were drawn. The 3 blocks of activity (Part A) were followed by 10 min of exercise at speeds alternating between jogging and cruise running (Part B). Results. Estimated (V)over dotO(2) max did not significantly differ between groups, although a trend for a higher aerobic capacity was evident in AS (p<0.09). Exercising heart rates did not differ between AS and RP, however, recovery heart rates taken from the 3 min rest periods were significantly lower in AS compared with RP following blocks 1A (124.65 b(.)min(-1) +/-7.73 and 133.98 b(.)min(-1) +/-6.63), (p<0.05) and 3A (129.91 b.min(-1) +/-10.21 and 138.85 b.min(-1) +/-8.70), (p<0.01). Blood lactate concentrations were significantly elevated in AS in comparison to RP following blocks 2A (6.91 mmol(.)l(-1) +/-2.67 and 4.74 mmol(.)l(-1) +/-1.28) and 3A (7.18 mmol(.)l(-1) +/-2.97 and 4.88 mmol(.)l(-1) +/-1.50), (p<0.05). AS sustained significantly faster average sprint times in block 3A compared with RP (3.18 sec +/-0.12 and 3.31 sec +/-0.12), (p<0.05). Conclusion. The results of this study show that highly trained soccer players are able to sustain, and more quickly recover from, high intensity intermittent exercise.

Information and efficiency: goal arrival in soccer betting

An efficient market incorporates news into prices immediately and fully. Tests for efficiency in financial markets have been undermined by information leakage. We test for efficiency in sports betting markets – real-world markets where news breaks remarkably cleanly. Applying a novel identification to high-frequency data, we investigate the reaction of prices to goals scored on the ‘cusp’ of half-time. This strategy allows us to separate the market's response to major news (a goal), from its reaction to the continual flow of minor game-time news. On our evidence, prices update swiftly and fully.

Classification of self-consumable highlights for soccer video summaries

An effective scheme for soccer summarization is significant to improve the usage of this massively growing video data. The paper presents an extension to our recent work which proposed a framework to integrate highlights into play-breaks to construct more complete soccer summaries. The current focus is to demonstrate the benefits of detecting some specific audio-visual features during play-break sequences in order to classify highlights contained within them. The main purpose is to generate summaries which are self-consumable individually. To support this framework, the algorithms for shot classification and detection of near-goal and slow-motion replay scenes is described. The results of our experiment using 5 soccer videos (20 minutes each) show the performance and reliability of our framework.

All part of the hetero-normative? Women football fans` voices on players` sexual (mis)conduct

From interviews conducted in Victoria with women fans of Australian Rules Football, this paper examines their perceptions and rationalisations of alleged sexual misconduct by players. The paper is situated in the seeming contradiction of women avidly supporting male dominated sports despite players being implicated in misconduct against their gender. Women fans' voices about the reported misconduct are explored. These fall into two main categories that are referred to as the 'predatory female' and the 'rogue male' narratives. The former suggests that the sexual assertiveness of some women - the 'groupies' - unlocks men's primal sexuality. The latter points to footballers being immersed in a hyper-masculine sub-culture that predisposes them to treat women in an arbitrary, demeaning manner. The fans' voices, while condemning players' misconduct, suggest that predatory females, by actively seeking out footballers, become victims
because they trigger testosterone driven male responses. Rogue male behaviour is deprecated, but understood as stemming from masculine ways, accentuated by team bonding, that leads some individuals into misconduct, possibly as a means of emphasising their masculinity within their group. Explaining player misconduct in these ways enables fans to distance themselves from it and continue their passionate support of
football.

A victory for the fans? Melbourne's new football club in recent historical perspective

A new Association football team, Melbourne Victory, was created in Melbourne in 2005 as a founding member of the Australian A-League. Within little more than a year it was drawing peak crowds of 50,000 to matches and averaged over 30,000. It was forced to move from an 18,000 capacity stadium to one holding 55,000. Previous new club foundations in the 1990s had not been successful, despite being associated with popular Australian Rules football teams, Collingwood and Carlton. The Victory, however, seems to have attracted a different and wider demographic to the game. For the first time the growth of the code in Australia in based on the domestic population, not waves of inward migration as was the case in the 1880s, 1920s and the post-Second World War period. Preliminary studies of the fan base suggest that the future for the Victory is likely to be different from the recent past.

Football's world cup and its fans - reflections on national styles : a photo essay on Germany 2006

The football World Cup is the greatest multicultural sporting extravaganza of modern times. The notion of post-fandom tries to capture the ways in which fans now participate in and engage in self-aware and reflexive strategies to obtain their desired outcomes from attendance at or viewing such major events. This illustrated photo-essay on the World Cup looks at the experiences and behaviour of fans in three countries, Scotland, Germany and Australia, during the tournament with a view to extending our understanding of the relationships between fans and others temporarily interested in the World Cup and the promoters of such mega-events. It argues that the participants brought a wide range of expectations to the tournament and engaged in highly flexible and innovative approaches to ensure that they gained the maximum benefit, individually and collectively, from the experience.

Our wicked foreign game : why has association football (Soccer) not became the main code of football in Australia?

This essay examines the role of soccer in Australian popular life, emphasizing the game's position of secondary importance to rugby or Australian Rules in different regions. It draws on international comparisons with the USA or white British colonies to argue that in a uniquely multicultural country like Australia with established sporting traditions, domestic experience of the game could shape the past, present and future of soccer in the country. Given the cultural diversity of the state, it should work towards a strategic competitive advantage for the popularization of soccer in contemporary Australia