对乒乓球青少年训练时期重要技术概念的认识     

卢贤钊  王泽民 《北京体育大学学报》2007,30(8):1107-1109

乒乓球基本技术的基础与基本功,是对少儿入门时期主要教学工作的概括,两者虽有先后之别,却无轻重之分.规范化与合理化是对青少年技术动作外形与实质的要求.规范化是基础,合理化是延伸,规范化有助于合理化的发展,它们对运动员今后的发展影响极大.目前在实际操作中,不少教练员概念不清,急于求成,致使运动员的培养周期延长,投资成本增加,造成很大人才浪费.因此,本课题研究具有重要的现实和理论意义.  相似文献   

多元组合训练法在男篮队员体能训练中的运用研究   总被引：1，自引：0，他引：1  

刘晶  王维琦  张宏杰 《北京体育大学学报》2007,30(8):1129-1131

采用文献资料、实验、数理统计等研究方法,简介多元组合训练法的要素.结果显示:实验对象实验前、后的运动素质(力量、柔韧、灵敏、耐力、速度)发生变化,各项指标均有明显提高且差异显著;体成分无明显差异,但体脂率呈下降趋势,体重上升.表明多元组合训练法有利于提高篮球运动员的体能状况;同时在体能训练中并未造成实验对象的机体过度疲劳和损伤,表明运动负荷量及强度的安排具有合理性.  相似文献   

加强运动队选材管理 创建燕山大学特色体育     

王向东 《教学研究(河北)》2001,24(4):311-313

通过对我国普通高校高水平运动员选材途径以及现状分析，以燕山大学具体情况为例，阐述了高校应根据各地不同条件和情况，用创办一两支高水平运动队作为突破口，合理布局带动其它项目的发展搞好高校体育建设，形成有自己特色的体育文化，以利于我国高校高水平运动队的发展。  相似文献   

Scoring on and off the field?: The impact of Australia's inclusion in the Asian Football Confederation     

《Sport Management Review》2016,19(5):578-586

The case follows Australia's move from the Oceania Football Federation (OFC) to the Asian Football Confederation (AFC). The case explores the impact of Australia's inclusion on other AFC member nations and highlights that Australia's relative success in the AFC may not be perceived as positive by all stakeholders within the AFC. The case considers the effect of Australia's inclusion in the AFC on the AFC in general, and also on both the sport of soccer in Australia, and the broader Australian economy.  相似文献   

Injuries during football tournaments in 45,000 children and adolescents     

Line Agger Kolstrup  Kristian Ugelvig Koopmann  Uffe Harboe Nygaard  Rie Harboe Nygaard 《European Journal of Sport Science》2016,16(8):1167-1175

Four percent of the world’s population, or 265 million people, play football, and many players are injured every year. The present study investigated more than 1800 injuries in over 45,000 youth players participating in three consecutive international football tournaments in Denmark in 2012–2014. The aim was to investigate the injury types and locations in children and adolescent football players and the differences between genders and age groups (11–15 and 16–19 years of age). An overall injury rate of 15.3 per 1000 player hours was found. The most common injury location was lower extremities (66.7%), and the most common injury type was contusion (24.4%). Girls had a relative risk of injury of 1.5 compared with boys, p?p?p?相似文献   

The asymmetry of pectoralis muscles is greater in male prepubertal than in professional tennis players     

Joaquin Sanchis-Moysi  Cecilia Dorado  Fernando Idoate  Juan J. González-Henríquez  Jose A. Serrano-Sanchez  Jose A. L. Calbet 《European Journal of Sport Science》2016,16(7):780-786

It is generally accepted that preadolescents have a limited capacity to develop muscle hypertrophy in response to exercise compared with older populations; however, studies are scarce and conflicting. The main aim of the present study was to assess if playing tennis is associated with the hypertrophy of dominant pectoralis muscles (PM) in professional (PRO) and in prepubescent tennis players (PRE). A secondary aim was to assess if the degree of asymmetry of PM is greater in PRO than PRE. The volume of PM of both sides was determined using magnetic resonance imaging in 8 male PRO (21.9 years), 6 male PRE (11 years, Tanner 1–2) and 12 male non-active controls (6 adults: 23.5 years; and 6 prepubescents: 10.7 years, Tanner 1–2). PRO and PRE had 15 and 30% greater volume, respectively, in the dominant than in the contralateral PM (P?P?=?.34 in adults and 5%, P?=?.17 in children). The degree of side-to-side asymmetry in PM volume was greater in PRE than in PRO (P?相似文献   

Mobilities at Play: The Local Embedding of Transnational Connections in West African Football Migration     

Christian Ungruhe 《国际体育史杂志》2016,33(15):1767-1785

Abstract

So far, academic contributions have widely framed football in Africa as a means for migration from a western point of view. At a time, they presented particular and one-dimensional understandings of transnational links in the realm of football migration between Africa and Europe. Macro-level perspectives which mostly focus on African exploitation and dependency and more recently those that take the players’ agency into account reproduce a Eurocentric view of the phenomenon, while disregarding its local perceptions in African settings. Thus, despite the recent shift from a macro- to a micro-level perspective there is still an analytical gap between the ambitions and experiences of migrating players and economic power relations at play on the one hand and the socio-cultural embedding of the transnational connections in football migration on the other. In order to understand why and how football mobilities are indeed linked to ‘the transnational’ in migration there is a need to localize the phenomenon and investigate how local understandings of migration and mobility are lived and expressed in a transnational sport like football. By taking data from fieldwork among West African football migrants, the paper thus shows the local embedding of transnational football migration practices in the West African context.  相似文献   

Effect of a congested match schedule on immune-endocrine responses,technical performance and session-RPE in elite youth soccer players     

Alexandre Moreira  Paul Bradley  Christopher Carling  Ademir Felipe Schultz Arruda  Leandro M. P. Spigolon  Clovis Franciscon 《Journal of sports sciences》2016,34(24):2255-2261

ABSTRACT

This study investigated the effects of a congested match schedule (7 matches played in 7 days) on steroid hormone concentrations, mucosal immunity, session rating of perceived exertion (S-RPE) and technical performance in 16 elite youth soccer players (14.8 ± 0.4 years; 170.6 ± 9.4 cm; 64.9 ± 7 kg). No change was observed for salivary cortisol concentration across match time points (P = 0.33; effect size [ES] = 0.13–0.48). In contrast, there was a decrease in salivary testosterone and salivary IgA (SIgA) concentrations from the 1st compared with the last time point (P = 0.01 and 0.001, ES = 0.42 and 0.67, respectively). The SIgA concentration varied across time points (P < 0.001) with the highest value observed at the 3rd time point (rest day) (3rd vs all time point; ES = 0.47–0.73). No changes were observed for S-RPE across time points (P > 0.05). A higher number of tackles and interceptions were observed during the 4th match vs 1st and 7th matches (P < 0.001; ES = 2.25 and 1.90, respectively). The present data demonstrate that accumulated fatigue related to participation in a congested match schedule might induce a decrease in testosterone concentration in youth players and negatively affect their mucosal immunity and capacity to perform certain technical actions.  相似文献   

浅谈色彩对足球教学的作用     

马振东 《鞍山师范学院学报》2006,8(4):83-84

色彩会对人的生理、心理产生影响,它不但影响人的视觉神经,还进而影响心血管系统、内分泌机能、中枢神经系统的活动.在足球教学中合理地运用色彩对提高学生课堂注意力和教学效果有一定程度的帮助.  相似文献   

完整背向滑步推铅球技术、动作结构分析     

罗晖 《衡阳师范学院学报》2004,25(6):112-114

主要以参加2003年北京站全国室内田径锦标赛球决赛的运动员为对象，利用现场观察，问题调查全面系统地考察了背向滑步推铅球技术动作的内容与结构。结果显示，运动员在铅球技术动作以及动作结构存在问题，对运动员以后的发展十分不利。本文在此重点讲述完整背向滑步推铅球技术动作以及动作结构，为广大投掷教练员和运动员的训练提供参考。  相似文献