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41.
Damian R. Poulter 《Journal of sports sciences》2013,31(8):797-805
Abstract The home advantage effect was investigated at a team and player level in Union of European Football Associations (UEFA) Champions League football using in-depth performance and disciplinary variables. Performance analysis revealed that the home team scored more goals, had more shots on and off target, had a greater share of possession, and won more corners than the away team. There was an opposite trend for disciplinary variables, with the home team committing less fouls than the away team, and receiving less yellow and red cards. There were home advantage effects at player level for goals, total shots, shots on target, assists, and yellow cards, as found in the team analysis. In addition, foreign players demonstrated a home advantage effect for goals scored, whereas domestic players scored an equivalent number of goals at home and away venues. Results are discussed in relation to the home advantage literature and wider implications for the sport. 相似文献
42.
Christopher Beedie Fabrizio Benedetti Diletta Barbiani Eleanora Camerone Emma Cohen Damian Coleman 《European Journal of Sport Science》2018,18(10):1383-1389
In June 2017 a group of experts in anthropology, biology, kinesiology, neuroscience, physiology, and psychology convened in Canterbury, UK, to address questions relating to the placebo effect in sport and exercise. The event was supported exclusively by Quality Related (QR) funding from the Higher Education Funding Council for England (HEFCE). The funder did not influence the content or conclusions of the group. No competing interests were declared by any delegate. During the meeting and in follow-up correspondence, all delegates agreed the need to communicate the outcomes of the meeting via a brief consensus statement. The two specific aims of this statement are to encourage researchers in sport and exercise science to
1. Where possible, adopt research methods that more effectively elucidate the role of the brain in mediating the effects of treatments and interventions.
2. Where possible, adopt methods that factor for and/or quantify placebo effects that could explain a percentage of inter-individual variability in response to treatments and intervention. 相似文献
43.
The duration of the final fixation before movement initiation – a gaze strategy labelled quiet eye – has been found to explain differences in motor expertise and performance in precision tasks. To date, research only addressed this phenomenon in situations without adversarial constraints. In the present study, we compared the quiet-eye behaviour of intermediately-skilled and highly-skilled basketball players in defended vs. undefended game situations. We predicted differences in quiet-eye duration as a function of skill and performance particularly resulting from late quiet-eye offsets. Results indicated performance-enhancing effects of long quiet-eye durations in the defended but not in the undefended game situation. Furthermore, in line with our prediction, later quiet-eye offsets were associated with superior performance elucidating the phenomenon’s relevance in online-demanding motor tasks. Further, earlier quiet-eye onsets were linked to successful performance supporting earlier suggestions that it is not only the duration but also the timing that matters. These findings not only extend the positive effects of the quiet eye in motor performance to dynamic game-play situations but also support the role of the quiet eye in response to programming and information processing respectively. 相似文献
44.
This article examines and theorises the experiences of 12 primary pre-service teachers at an Australian university, undertaking a two week professional teaching experience in Bangkok. This qualitative ethnographic study of our students’ and to some extent our own experiences draws on interviews, questionnaires and observations from the students, as well as reflective notes from two participating supervisors, and sets out to account for and understand the sources of the achievements and frustrations experienced by our pre-service teachers. The findings illustrate differences between the students’ overseas experiences and Australian-based experiences. These differences include organisational structures, teacher mentoring and cultural understandings, and the effects these had on the students. In particular, we distinguish the more readily observable structural nature of the schools in which the pre-service teachers were teaching, and the less visible cultural aspects that underlie these structures. We propose ways of helping students, as part of pre-departure briefings, to become more aware of these cultural underpinnings, with a view to helping them become more at ease negotiating intercultural workplaces. 相似文献
45.
There is little published data in relation to the effects of caffeine upon cycling performance, speed and power in trained cyclists, especially during cycling of approximately 60 s duration. To address this, eight trained cyclists performed a 1 km time-trial on an electronically braked cycle ergometer under three conditions: after ingestion of 5 mg x kg-1 caffeine, after ingestion of a placebo, or a control condition. The three time-trials were performed in a randomized order and performance time, mean speed, mean power and peak power were determined. Caffeine ingestion resulted in improved performance time (caffeine vs. placebo vs. control: 71.1 +/- 2.0 vs. 73.4 +/- 2.3 vs. 73.3 +/- 2.7 s; P = 0.02; mean +/- s). This change represented a 3.1% (95% confidence interval: 0.7-5.6) improvement compared with the placebo condition. Mean speed was also higher in the caffeine than placebo and control conditions (caffeine vs. placebo vs. control: 50.7 +/- 1.4 vs. 49.1 +/- 1.5 vs. 49.2 +/- 1.7 km x h-1; P = 0.0005). Mean power increased after caffeine ingestion (caffeine vs. placebo vs. control: 523 +/- 43 vs. 505 +/- 46 vs. 504 +/- 38 W; P = 0.007). Peak power also increased from 864 +/- 107 W (placebo) and 830 +/- 87 W (control) to 940 +/- 83 W after caffeine ingestion (P = 0.027). These results provide support for previous research that found improved performance after caffeine ingestion during short-duration high-intensity exercise. The magnitude of the improvements observed in our study could be due to our use of sport-specific ergometry, a tablet form and trained participants. 相似文献
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47.
Damian P. Birney Jens F. Beckmann Robert E. Wood 《Learning and individual differences》2012,22(5):563-574
The current study investigates a conceptualization of flexible expertise as it relates to adult learning within the context of management and leadership training. Three research domains and their relation to metacognitive outcomes are integrated: 1) individual differences in abilities, personality, and mindsets, 2) deliberate practice and routine expertise, and 3) self-regulatory processes. The theoretical focus of the research is on the extent to which metacognitive self-evaluations around person- and management-specific concepts taught during training may act as precursors to flexible expertise. We asked 172 mid-level managers to provide evaluations of concept importance (antecedent), behavioral change (proximal consequence), and impact on job performance (distal consequence) resulting from knowledge acquired during the course of training. A series of hierarchical linear modeling analyses unveil a constellation of core personality characteristics, mindsets, and deliberative processing experiences that together interact to predict metacognitive self-evaluation of impactful training. Our results suggest support for our contention that flexible expertise is a context appropriate, balanced cluster of learning oriented, self-regulatory, and metacognitive processes that moderate and mediate the application of abilities and previously acquired knowledge to problem solution, future knowledge acquisition, and ultimately effective leadership. 相似文献
48.
Damian Spiteri 《Emotional and Behavioural Difficulties》2013,18(3):239-249
Using a social constructionist approach, this study explores the self-perceptions of young men who, when at school, were classed as boys with social, emotional and behavioural difficulties (SEBD). The aim is to understand how these perceptions were forged throughout the young men's life-courses resulting in changing self-identities. The study also explores how, through the language that the participants employed, they made it possible for different aspects of their socialization to influence their ability to influence the development of their lives, especially when making decisions such as choosing a particular partner or deciding to stop taking drugs. This study indicates participants acting on their own appraisals of their identity in forging opportunities and highlights their perceptions of the influence of different agents of socialization on how they turned out as adults. 相似文献
49.
Portus MR Farrow D 《Sports biomechanics / International Society of Biomechanics in Sports》2011,10(4):294-305
This review synthesises the biomechanical and skill acquisition/sport expertise literature focused on the skill of cricket batting. The literature is briefly reviewed and the major limitations, challenges, and suggested future research directions are outlined. This is designed to stimulate researchers to enhance the understanding of cricket batting biomechanics and skill acquisition and in turn assist cricket coaches develop efficacious batting skill development programmes. An interdisciplinary approach between biomechanists and skill acquisition specialists is advocated to further knowledge of the underlying processes and mechanisms of cricket batting expertise. Issues such as skill measurement, practice design, ball machines, skill transfer, the impact of Twenty/20 cricket, video simulation, and skill decomposition are discussed. The ProBatter ball machine systems are introduced along with suggestions for best practice approaches for coaches when designing batting skill development programmes. 相似文献
50.
Damian J. Rivers 《Int J Intercult Relat》2011,35(6):842-852
Recent research has shown that imagined intercultural contact, being based upon the adoption of principles of mental imagery and imagination, is able to elicit similar emotional, attitudinal and motivational responses as actual lived contact experiences. Furthermore, it has been noted that possessing the multiple competencies required to successfully negotiate an intercultural contact encounter with a target language speaker represents one of the most prominent sources of motivation for many foreign language learners. Therefore, situated within the context of a Japanese foreign language university which exhibits a dependency on ‘native-speaker’ English teachers from inner-circle (Kachru, 1985) countries, this paper showcases a social psychological study undertaken with 120 Japanese English language learners which sought to explore various dimensions of imagined intercultural contact via evaluations of the self and three intercultural others of different racial and ethnic appearance across two specific contact situations (positive and neutral). The outcomes are discussed in relation to underlying theories, as well as to the practical implications created for the improvement of foreign language teaching and learning practices which specifically seek to incorporate an explicit intercultural dimension. 相似文献