认知负荷对乒乓球运动员注意空间的影响*     

杨〓义  岳珍珠 《广州体育学院学报》2019,(2):99-101

目的 同时注意空间中多个目标刺激对于乒乓球运动员非常重要。考察认知负荷对青少年乒乓球运动员注意分布的影响。方法：实验中采用计算机行为实验，控制认知负荷（同时注意的目标数量为2、4或6个），并且在不同注意范围（离中央注视点3°、6°和9°视角）的位置上同时呈现刺激，要求被试对刺激的亮度变化做辨别反应。结果：:认知负荷对于乒乓球运动员的注意范围有显著调节。当刺激个数为2时，在3°和6°视角条件下呈现的刺激反应时均显著快于9°视角条件下的刺激。当刺激个数为4时，视角为3°条件下的反应时快于视角为6°和9°时的反应时，而视角为6°时又比视角为9°时的反应时显著要快。当刺激个数为6时，视角为3°时的反应时均快于视角为6°和9°时的反应时。结论：当前研究证明随着认知负荷增加，乒乓球运动员注意焦点范围显著缩小。可以通过测量运动员在高负荷条件下注意焦点的范围来进行运动员的选拔。  相似文献   

Cultures of running: characteristics and determinants     

Geoffrey Lassalle  Robin Recours  Jean Griffet 《Sport in Society》2019,22(3):342-360

Based on the studies of Mauss (1935 Mauss, M. 1935. “Les techniques du corps.” Journal de Psychologie 32: 271–293. [Google Scholar]) and Bourdieu (1980 Bourdieu, P. 1980. Le Sens pratique. Paris: Editions de Minuit. [Google Scholar]) on the determination of body techniques by culture and social background, this study seeks to describe the rules, dispositions and habits specific to different forms of athletic running. It is based on a sample of 732 athletes, all of them are the members of French athletics clubs, comprising 220 sprinters, 213 half-distance runners and 299 long-distance runners. Sports practices are different depending on sub-culture affiliation, sociological characteristics and forms of commitment. This being said, simple links between variables should not be transformed into causal connections. Before drawing such conclusions, it is important to identify the nature of the sport studied. This shows that middle-distance and long-distance enthusiasts, traditionally classified in the same family, have less, in common, than those practising sprint and middle distance. These results potentially question the methodological groups and sociological interpretations made by researchers and sports science.  相似文献   

‘Tidy,toned and fit’: locating healthism within elite athlete programmes     

Seth Brown 《Sport, Education and Society》2017,22(7):785-798

Coaches and athletes have been increasingly inundated with power related ‘truths’ about their bodies, health and performance as they construct their subjectivities. Over the last couple of decades in New Zealand, schools have initiated elite athlete programmes (EAPs) for a select few students based primarily on their athletic ability and fitness levels. Drawing on Gore's techniques of power, my study investigated how healthism and the cult of the body discourses were (re)produced, negotiated and resisted by coaches and elite athletes and how body pedagogies defined and shaped bodies in two high school EAPs. My analysis suggested that ‘toned and fit’ bodies signified responsible athletes compared to ‘fat’ bodies and that elite athletes disciplined their bodies to overcome pain to remain productive. In both EAPs, power circulated at the micro-level of pedagogical practice to normalise and monitor the athletes’ diet, body weight and shape, and reinforced tensions between prudentialism and hedonism.  相似文献   

The effect of smartphones and playing video games on decision-making in soccer players: A crossover and randomised study     

Leonardo S. Fortes  Dalton De Lima-Junior  Lenamar Fiorese  José R. A. Nascimento-Júnior  Arnaldo L. Mortatti  Maria E. C. Ferreira 《Journal of sports sciences》2020,38(5):552-558

ABSTRACT

The objective of this study was to analyse the effect of the use of social networks in smartphones or playing video games on the passing decision-making performance in professional soccer athletes. Participants were 25 male professional soccer athletes (mean ± SD: age 23.4 ± 2.8 years). The participants performed three randomised conditions divided into three groups: control (CON), smartphone (SMA), and video game (VID). Before and after each experimental condition, the Stroop Task assessed the level of induced mental fatigue. Then, the athletes performed a simulated soccer match. A CANON® camera recorded the matches for further analysis on passing decision-making performance. A group effect was identified (p < .01) with impairment on passing decision-making performance for the SMA (p = .01, ES = 0.5) and VID (p = .01, ES = 0.5) conditions. We concluded that the use of social networks on smartphones and/or playing video games right before official soccer matches might impair the passing decision-making performance in professional soccer athletes.  相似文献   

Professional mobilities in the creative industries: The role of “place” for young people aspiring for a creative career     

Caitriona Noonan 《Cultural Trends》2015,24(4):299-309

Within creative industries policy, two themes have been situated as central to the needs of the creative economy: the economic importance of place and the role of education in delivering a better-equipped workforce. However, these themes have rarely overlapped in either policy thinking or academic research, and so this article focuses on the relationship between place, education and professional aspirations for young people. Using the findings from qualitative interviews with media studies students within higher education (HE), this article analyses how the perceived attributes of some locations may provide industry credibility and the promise of enhanced professional mobility. It examines the tangible and symbolic value of place within young people's career development in the creative industries. The findings highlight how the links between place and education can influence the professional process, and how place shapes young people's perceptions of and opportunities for work in the creative industries. Finally, this research emphasises how current theories on creative industries policy and HE provision need to be extended to take greater account of the ways in which the attributes of localities can be used as a catalyst for individual professionalism amongst young people, and the ways in which certain places (mainly rural) may be disadvantaged in the current policy trajectory.  相似文献   

高校篮球运动员专项体能特征分析研究     

金彬彬  陈清 《体育科技文献通报》2020,(4):171-171,175

在篮球运动当中,专项体能培养是帮助运动员熟练掌握篮球技能并进行实战应用的重要条件。文章采用文献资料等,根据分析高校篮球运动员的专项体能的特征,提出了有效培养高校篮球运动员的专项体能训练的手段与办法,旨为进一步推进高校篮球专项体能训练的发展。  相似文献   

高校学生党支部工作的几点思考     

廖旺星 《邢台职业技术学院学报》2011,28(1):29-30

随着经济的发展和改革的不断深化,高校学生参与政治的热情有淡化的趋势。高校学生党支部面临着一系列新的挑战。必须加强党支部的培训和发展工作,改变工作方法,增强党支部的吸引力和凝聚力。  相似文献   

Walking the Streets of London: Using Zadie Smith's ‘NW’ to explore teenage,metropolitan ways of seeing and writing          下载免费PDF全文

Jonathan Monk 《English in Education》2017,51(2):188-206

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我国男子高水平三级跳远运动员专项力量训练安排研究     

袁晓毅  丁振峰  关长亮  郭元奇 《北京体育大学学报》2016,39(1):112-118

摘要：男子三级跳远是我国参加奥运会田径比赛的潜优势项目，专项力量是影响三级跳远比赛成绩和技术水平提升的关键因素，运用文献资料法、专家访谈法、实地调查等研究方法，分析研究我国最优秀的6名男子三级跳远运动员专项力量训练安排。结论：1）我国男子高水平三级跳远运动员的力量训练内容、方法手段、计划与负荷基本符合世界潮流，但训练中缺少单腿支撑进行的蹲、拉、提、举等练习，不够贴近专项需要；2）专项力量训练器材与世界发达国家相比科技化含量不高；3）专项力量负荷调整控制主要依赖教练员经验与身体素质指标推算。  相似文献   

Psychometric Properties of a Parental Questionnaire for Assessing Correlates of Toddlers’ Physical Activity and Sedentary Behavior     

Valerie Carson  Kylie D. Hesketh  Ryan E. Rhodes  Christina Rinaldi  Wendy Rodgers  John C. Spence 《Measurement in physical education and exercise science》2017,21(4):190-200

This study examined the psychometric properties of a questionnaire developed with the guidance of the socialization model of child behaviour to understand modifiable correlates of toddlers’ physical activity and sedentary behaviour. Findings are based on 118 parents (33.7 ± 4.9 years; 86% female) of toddlers (19.3 ± 2.7 months; 48% female) from Edmonton, Canada in The Parents’ Role in Establishing healthy Physical activity and Sedentary behaviour habits study (PREPS). The PREPS questionnaire encompassed 21 variables across the constructs of the socialization model of child behaviour. Of the nine variables assessed for internal consistency reliability, eight had good (α ≥ 0.70) reliability. Of the 15 continuous variables assessed for 1-week test–retest reliability, 10 had moderate (intra-class correlation = 0.50–0.74) and 5 had good (intra-class correlation ≥ 0.75) reliability. Of the six categorical variables assessed for 1-week test–retest reliability, two had fair (К = 0.21–0.40), one had moderate (К = 0.41–0.60), one had substantial (К = 0.61–0.80), and two had almost perfect (К = 0.81–1.00) reliability. Of the 12 sedentary behaviour variables assessed for convergent validity, 7 were significantly correlated with children’s screen time, of which three were small (r ≤ 0.29), two were medium (r = 0.30–0.49), and two were large (r ≥ 0.50) effect sizes.  相似文献