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Abstract This study investigated effects of manipulating the number of action possibilities in a futsal passing task to understand the representativeness of practice tasks designs. Eight male senior futsal players performed a passing task in which uncertainty on passing direction for the player in possession of the ball was increased in four conditions and compared with passing data from a competitive match. Performance during a passing task and competitive futsal performance was compared using ball speed and passing accuracy data. Ball speed data were analysed by approximate entropy (ApEn) to capture their regularity in each of the four conditions and during competitive performance. Significantly high levels of regularity were observed in predetermined passes in comparison with emergent passes (i.e., passes with high number of possibilities for action). Similar results for ball speed regularity were observed between practice tasks with a high number of possibilities for action (i.e., emergent passes) and competitive performance. Similar results were observed for passing accuracy in practice tasks with a high number of possibilities for action compared to competitive performance. Increases in the number of action possibilities during practice improved action fidelity of tasks in relation to competitive performance. 相似文献
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Egon Brunswik proposed the concept of "representative design" for psychological experimentation, which has historically been overlooked or confused with another of Brunswik's terms, ecological validity. In this article, we reiterate the distinction between these two important concepts and highlight the relevance of the term representative design for sports psychology, practice, and experimental design. We draw links with ideas on learning design in the constraints-led approach to motor learning and nonlinear pedagogy. We propose the adoption of a new term, representative learning design, to help sport scientists, experimental psychologists, and pedagogues recognize the potential application of Brunswik's original concepts, and to ensure functionality and action fidelity in training and learning environments. 相似文献
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Inasmuch as Muslim governments all over the world dissociate themselves from despicable acts of terror, few can deny the brutality and violence perpetrated especially by those in authoritative positions like political governments against humanity. Poignant examples are the ongoing massacre of Muslim communities in Syria, Iraq, Afghanistan and Pakistan by those government or rebel forces intent on eliminating the other whom they happen to find unworthy of living. This article attempts to map Islamic education’s response to violence and terror often perpetrated against people considered to be in vehement disagreement with another, for instance, Muslim rebel forces assassinating Christians in Syria and destroying ancient monasteries, Muslim jihadist fighters kidnapping and assassinating people in revengeful acts of terror and Muslim government militia quelling resistant forces that oppose the government’s so-called reformist agenda. In arguing against any form of violence, we show how Islamic education cannot and should not be associated with any act of violence. Put differently, we take issue with any act of violence even if minimally applied to disrupt acts of violence. On the contrary, we argue that Islamic education is intimately connected to the practice of public deliberation that engenders a community of becoming that will always undermine violence. We develop our argument in the following way: firstly, we give an account of a maximalist view of Islamic education in relation to the notion of a Muslim community in becoming; secondly, in relation to Agamben’s seminal thoughts on potentiality and becoming, we show that a Muslim community in becoming is averse to violence; finally, we argue as to how forgiveness, risk-taking and civility as instances of deliberation can counteract terror, more specifically on the part of a Muslim community in potentiality and becoming. 相似文献
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Abstract Russell, Benton and Kingsley (2010) recently suggested a new association football test comprising three different tasks for the evaluation of players' passing, dribbling and shooting skills. Their stated intention was to enhance ‘ecological validity’ of current association football skills tests allowing generalisation of results from the new protocols to performance constraints that were ‘representative’ of experiences during competitive game situations. However, in this comment we raise some concerns with their use of the term ‘ecological validity’ to allude to aspects of ‘representative task design’. We propose that in their paper the authors confused understanding of environmental properties, performance achievement and generalisability of the test and its outcomes. Here, we argue that the tests designed by Russell and colleagues did not include critical sources of environmental information, such as the active role of opponents, which players typically use to organise their actions during performance. Static tasks which are not representative of the competitive performance environment may lead to different emerging patterns of movement organisation and performance outcomes, failing to effectively evaluate skills performance in sport. 相似文献
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In this review, we critically evaluate the scientific research into the morphology and physiology of cricket batsmen. We consider all aspects of the motor control of this skill, in the context of research into dynamic interceptive actions, the biomechanics (kinematics and kinetics) of the various phases of batting strokes and injuries to batsmen. Some attention is also devoted to batting equipment and to psychological factors in batting. Because of the lack of published scientific research into women's cricket, this review focuses on the men's game and covers research on batsmen of various playing standards. For the future, we see as a high priority research into injury mechanisms, rather than simple injury statistics, and the role of cricket equipment design in injury prevention. A second priority is for multi- or inter-disciplinary research, linking the biomechanics of batting to the underlying motor control of the movements and the effect of environmental information. Biomechanical studies of the variability of the batsman's movements are needed, and these should be related to the compensatory variability proposal of ecological psychology. Clearly, there is also a need for scientific research into batting in women's cricket, which has been inadequately researched to date. 相似文献
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