Development of dribbling in talented youth soccer players aged 12–19 years: A longitudinal study     

Barbara C. H. Huijgen  Marije T. Elferink-Gemser  Wendy Post  Chris Visscher 《Journal of sports sciences》2013,31(7):689-698

Abstract

The aims of the current study were to assess the development and determine the underlying mechanisms of sprinting and dribbling needed to compete at the highest level in youth soccer. Talented soccer players aged 12–19 years (n = 267) were measured on a yearly basis in a longitudinal study over 7 years, resulting in 519 measurements. Two field tests, the Shuttle Sprint and Dribble Test and the Slalom Sprint and Dribble Test, were assessed. Anthropometric characteristics, years of soccer experience, and duration of practice were recorded. The longitudinal data were analysed with multi-level modelling. Comparing the two tests at baseline, low correlations were observed (sprinting: r = 0.49; dribbling: r = 0.22), indicating that each test measures distinct qualities (acceleration vs. agility). Low-to-moderate correlations were found between dribbling and sprinting within each test (Shuttle Sprint and Dribble Test: r = 0.54; Slalom Sprint and Dribble Test: r = 0.38). Both dribbling and sprinting improved with age, especially from ages 12 to 14, but the tempo of development was different. From ages 14 to 16, sprinting improved rapidly in contrast to dribbling; this was especially evident on the Slalom Sprint and Dribble Test. In contrast, after age 16 dribbling improved considerably but sprinting hardly improved. Besides age, the factors that contribute to dribbling performance are lean body mass, hours of practice, and playing position.  相似文献   

Personal and situational factors influencing coaches’ perceptions ofstress     

Camilla J. Knight  Ian L. Reade  Anne-Marie Selzler  Wendy M. Rodgers 《Journal of sports sciences》2013,31(10):1054-1063

Abstract

Coaching has been recognised as a demanding occupation, associated with a range of stressors. The extent to which coaches perceive stress is likely to be influenced by various personal and situational factors. The purpose of this study was to identify coaches' levels of perceived stress and examine the personal and situational factors that may influence coaches' perceptions of stress. In total, 502 coaches working with university, college, Canada Games, and/or nationally identified athletes completed this study. Coaches completed an online survey, which included questions regarding demographics, work/job-related considerations, and aspects relating to their contract. Coaches also completed the Perceived Stress Scale (Cohen, Kamarck, & Mermelstein, 1983 Cohen, S., Kamarck, T. and Mermelstein, R. 1983. A global measure of perceived stress. Journal of Health and Social Behavior, 24: 385–396. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Overall coaches indicated slightly below average levels of perceived stress (M = 15.13 out of 40) compared with norm-values (Cohen & Janicki-Deverts, 2012 Cohen, S. and Janicki-Deverts, D. 2012. Who's stressed? Distributions of psychological stress in the United States in probability samples from 1983, 2006, and 2009. Journal of Applied Social Psychology, 42: 1320–1334. [Crossref], [Web of Science ®] , [Google Scholar]). Demographic factors, job-related characteristics, and certain aspects of their contract were associated with coaches' perceptions of stress. In particular, unclear expectations, long-working hours (>40), lack of agreed evaluation criteria, higher salaries, and a lack of social support were related to higher perceptions of stress. As such, the findings of the current study indicate that a reduction in perceived stress is likely to be achieved through a multifaceted approach that addresses multiple factors associated with coaching.  相似文献   

Cross-Validation of the Revised Motivation for Physical Activity Measure in Active Women     

Philip M. Wilson  Wendy M. Rodgers  Shawn N. Fraser 《Research quarterly for exercise and sport》2013,84(4):471-477

Abstract

The five different training methods used in this study consisted of various proportions of swimming and of weight training exercises. Sixty subjects were divided into five equated groups. Each group was exposed to a different treatment over a period of six weeks. Tests of swimming speed were administered at the beginning of the experiment, and at the end of each week. All five treatments resulted in significant swimming improvements, but none of the treatments were significantly more effective than the other treatments.  相似文献   

Books reviews     

Wendy J. Raschke  Donald G. Kyle  Neil Tranter  Scott A. G. M. Crawford  Robert P. Watson  William E. Akin 《国际体育史杂志》2013,30(3):185-216

J. Neils (ed.), Goddess and Polis: The Panathenaic Festival in Ancient Athens (Princeton: Princeton University Press, 1993). Pp. 227, 24 colour plates, 170 b&w illus. $49.50 (£37.50) cloth; $19.95 (£13.95) paper. ISBN 0–691–03612–8 (cloth); 0–691–00223–1 (paper).

Steven H. Lonsdale, Dance and Ritual Play in Greek Religion (Baltimore and London: Johns Hopkins University Press, 1993). Pp. xxi + 352. Illustrations, bibliography, indexes. $39.95. ISBN 0–8018–4594–7.

Ramachandra Guha, Spin and Other Turns: Indian Cricket's Coming of Age (London: Penguin Books, 1994). Pp. xii + 158. Rs 100. ISBN 0–14–024720–3.

Robert Mechikoff and Steven Estes, A History and Philosophy of Sport and Physical Education: From the Ancient Greeks to the Present (Dubuque, Iowa: William C. Brown, 1993). Pp. 391. $29.50. ISBN 0–697–12159–3. Elliot J. Gorn and Warren Goldstein, A Brief History of American Sports (New York: Hill and Wang — Farrar, Straus and Giroux, 1993). ISBN 0–8090–1561–7. Pp. 290. $11.95.

Richard O. Davies, America's Obsession: Sports and Soceity since 1945 (Orlando, Florida: Harcourt Brace, 1994). Pp. 274. $16.00. ISBN 0–03–073332–4.

Ted Vincent, The Rise and Fall of American Sport: Mudville's Revenge (Lincoln: University of Nebraska Press, 1994). Pp. 358. ISBN 0–8032–9613–4.

Leonard Koppett, Sports Illusion, Sports Reality: A Reporter's View of Sports, Journalism and Society (Urbana and Chicago: University of Ilinois Press, 1994) paperback reprint of book originally published in 1981. Pp. xiv + 296. ISBN 0–252–06415–1.

Gilbert Andrieu, Force et beauté. Histoire de l'esthétique en éducation physique (Bordeaux: Presses Universitaires de Bordeaux, 1992). Pp. 252. FF150. ISBN 2–86781–125–2.

Charles Fountain, Sportswriter: The Life and Times of Grantland Rice (New York: Oxford University Press, 1993). Pp. 327. $25.00. ISBN 0–19–506176–4.

Peter Levine, Ellis Island to Ebbets Field: Sport and the American Jewish Experience (New York and Oxford: Oxford University Press, 1992).

Charles S. Prebish. Religion and Sport: The Meeting of Sacred and Profane (Westport, Ct.: Greenwood Press, 1993). Pp. xix + 243. ISBN 0–313–28729–5.

Tom Derderian, Boston Marathon: The History of the World's Premier Running Event (Champaign: Human Kinetics Publishers, 1994). Pp. xxvi + 606. $21.95 (paperback). ISBN 0–87322–491–4.

Kevin McAleer, Dueling, The Cult of Honor in Fin‐de‐Siècle Germany (Princeton: Princeton University Press, 1994). Pp. 268. $24.95. ISBN 0–691–03462–1.  相似文献   

当代女性主义理论和行动:六个全球性问题     

温蒂·琳妮·李  邵明 《宜宾学院学报》2012,(2):1-5

21世纪女性主义者将面对许多与上个世纪全然不同的理论问题。这对女性主义理论家们构成了挑战,需要她们进行深入地反思、在全球化语境下,谁已经被解放了;这到底意味着什么;什么和谁被牺牲了;我们在哪儿失败了,又打败了谁;谁被包括在这个"我们"中;还应该再做点什么。现实状况意味着人们在观念上仍然存在着束缚,并与信息技术革命一道使问题变得格外复杂。女性主义理论不仅仅涉及女性本身,还为人们应对当前许多全球性问题提供了一个独特的视角。  相似文献   

Integrated programs for mothers with substance abuse issues and their children: a systematic review of studies reporting on child outcomes     

Niccols A  Milligan K  Smith A  Sword W  Thabane L  Henderson J 《Child abuse & neglect》2012,36(4):308-322

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Distributed leadership of school curriculum change: an integrative approach     

Wendy Fasso  Bruce Allen Knight  Ken Purnell 《School Leadership & Management》2016,36(2):204-220

Since its inception in 1999, the distributed leadership framework of Spillane, Halverson, and Diamond [2004. “Towards a Theory of Leadership Practice: A Distributed Perspective.” Journal of Curriculum Studies 36 (1): 3–34. doi:10.1080/0022027032000106726] has supported research into leadership and change in schools. Whilst the conceptual integrity of the framework is sound, research based upon its premises has attracted some criticism. The research has had a narrowed focus which has not generally reflected the inseparability of the elements of the framework and the situation within which leadership is enacted. In addition, it often fails to account for the complexity of critical elements of the environment such as micropolitics. This position paper proposes a reconfiguration of the distributed leadership framework as a research framework in response to this critique. The paper asserts that this new perspective that is presented is able to respond to the critique through an integrated approach that encompasses situation, social distribution and task enactment and which supports an integrated approach to research methodology. This adapted framework has the potential to more fully support research design that is actuality holistic and embedded in the context.  相似文献   

In This Issue—Reminiscing About Birth and Motherhood     

Wendy C. Budin 《The Journal of perinatal education》2021,30(1):3

In this column, the editor of The Journal of Perinatal Education reminisces about her births and those of her three daughters and how birth has had an impact on her personal and professional life. The editor also describes the contents of this issue, which offer a broad range of resources, research, and inspiration for childbirth educators in their efforts to promote, support, and protect natural, safe, and healthy birth.  相似文献   

Head Start in Transition     

Sally Lubeck  Mary DeVries  Julie Nicholson  Jackie Post 《Early education and development》1997,8(3):219-244

This article explores the history of Head Start, the federal early education program for economically disadvantaged preschool children in the United States, as a way of understanding what it means to talk about change in the late twentieth century. The history of Head Start has been a story of administrative changes and improvement and accountability initiatives in the realm of public policy, a ominant narrative of progress and rational planning that is consonant with a large, centralized governance structure. In an effort to create another way of conceiving of the organization, we first examine shifting definitions and conflicting interpretations of parental involvement and staff development within the program to reveal some of the tensions inherent in all human endeavors. We then draw on interviews with women who work in and are served by Head Start to show how needs and resources vary and how policy mandates can have differential—and unintended—effects. In the conclusion, we suggest, following Toulmin (1990), that the certainty and stability that has characterized public policy since the Enlightment must now be tempered with a postmodern recognition of change, complexity, and variability. Rather than one history, we see many histories. Instead of one approach, we see value in tailoring improvement initiatives to the needs of families and staff in specific circumstances.  相似文献   

New Systems Produced by Systemic Change     

Wendy Battino  Jo Clem  Renate N. Caine  Charles M. Reigeluth  Carrie Chapman  David J. Flinders  Larissa V. Malopinsky 《TechTrends》2006,50(2):51-56

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