The relationship between peak height velocity and physical performance in youth soccer players   总被引：1，自引：1，他引：0  

Philippaerts RM  Vaeyens R  Janssens M  Van Renterghem B  Matthys D  Craen R  Bourgois J  Vrijens J  Beunen G  Malina RM 《Journal of sports sciences》2006,24(3):221-230

Longitudinal changes in height, weight and physical performance were studied in 33 Flemish male youth soccer players from the Ghent Youth Soccer Project. The players' ages at the start of the study ranged from 10.4 to 13.7 years, with a mean age of 12.2 +/- 0.7 years. Longitudinal changes were studied over a 5 year period. Peak height velocity and peak weight velocity were determined using non-smoothed polynomials. The estimations of peak height velocity, peak weight velocity and age at peak height velocity were 9.7 +/- 1.5 cm x year-1, 8.4 +/- 3.0 kg x year-1 and 13.8 +/- 0.8 years, respectively. Peak weight velocity occurred, on average, at the same age as peak height velocity. Balance, speed of limb movement, trunk strength, upper-body muscular endurance, explosive strength, running speed and agility, cardiorespiratory endurance and anaerobic capacity showed peak development at peak height velocity. A plateau in the velocity curves was observed after peak height velocity for upper-body muscular endurance, explosive strength and running speed. Flexibility exhibited peak development during the tear after peak height velocity. Trainers and coaches should be aware of the individual characteristics of the adolescent growth spurt and the training load should also be individualized at this time.  相似文献   

Puberty and physical self-perceptions of competitive female figure skaters: an interdisciplinary approach   总被引：1，自引：0，他引：1  

Monsma EV  Malina RM  Feltz DL 《Research quarterly for exercise and sport》2006,77(2):158-166

  相似文献   

East Meets West in Assessment Development: Western Technical Assistance to Eastern Needs. Part III. Reform of an Examination System: Shoulder to Shoulder in the Polish SMART Project     

Annemarie de Knecht-van Eekelen  Steven Bakker  Gerben van  Lent 《Educational Measurement》2001,20(3):33-35

This is Part III of a three part series describing the consultancy and training demands that are encountered in technical assistance projects in Central and Eastern Europe. Part I dealt with strategic issues for a successful delivery of "Western Technical Assistance to Eastern Needs." Part II highlighted project management and co-operation aspects in delivering support to the Romanian Assessment and Examination Service. In this part, we address training of Polish subject experts who were preparing to take on responsibility for a decentralized and strongly innovative final exam, the Matura.  相似文献   

Editorial     

Raoul Van Esbroeck 《International Journal for Educational and Vocational Guidance》2006,6(3):141-142

  相似文献   

青年男子排球运动员弹跳力模型   总被引：1，自引：0，他引：1  

夏崇德 《北京体育大学学报》2002,25(3):401-403

弹跳力是排球运动员的一项最重要的专项素质,为了探索发展青年男子排球运动员弹跳力的有效途径,以四川、重庆青年男子排球运动员为研究对象,对他们有关弹跳力的多种因素进行了相关、多元分析,进而制定出发展弹跳力的回归模型,为青年男子排球运动员弹跳力提供一个模型标准和参考.  相似文献   

论现代体育科学研究方法论的几个特征   总被引：14，自引：0，他引：14  

邵伟德  陈伟明 《北京体育大学学报》2002,25(4):454-456

运用文献资料法、理性分析法,根据当代体育科学发展的特点和要求,对现代体育科学方法进行了初步的归类、特征分析,认为现代体育科学研究方法论的基本特征为:1)研究方法的多样化、综合化;2)辨证思维与实验研究成为方法学的两大主流;3)定量化趋势加强,科研设备仪器不断更新;4)研究方法的学科化;5)比较研究受到了一定的重视.并提出了选用方法时的几个要求.  相似文献   

Rates and psychological effects of exposure to family violence among Sri Lankan university students     

Haj-Yahia MM  de Zoysa P 《Child abuse & neglect》2008,32(10):994-1002

  相似文献   

Eric Shiraev and Richard Sobel (2006). People and Their Opinions. Thinking Critically About Public Opinion. New York: Pearson Longman, 368 pp., ISBN 0-321-07898-5.     

de Boer  Connie 《Int. Journal of Public Opinion Research》2006,18(3):375-377

The authors of this book, Eric Shiraev and Richard Sobel, feltthe need to write a textbook on public opinion that would capturethe imaginations of the readers. In order to engage studentsand teachers alike in an active exploration of this domain theychose a combination of a critical thinking approach, an internationallycomparative perspective, and the use of numerous practical examplesof public opinion research on current political and social issues.The book is intended for introductory or middle level undergraduatecourses in public opinion, but could also be beneficial to upperlevel  相似文献   

Effective Engineering Information Literacy Instruction: A Systematic Literature Review     

Margaret Phillips  Amy Van Epps  Nastasha Johnson  Dave Zwicky 《The Journal of Academic Librarianship》2018,44(6):705-711

  相似文献   

Contemporary Westerns: Film and Television since 1990 Andrew Patrick Nelson,Editor. Lanham,MD: Scarecrow Press, 2013.          下载免费PDF全文

A. Bowdoin Van Riper 《Journal of American culture (Malden, Mass. : 2003)》2015,38(3):285-285

  相似文献