青少年足球运动员的速度力量训练

速度力量是速度与力量的综合表现 ,它的提高受速度素质与力量素质的牵制。力量和速度是青少年足球运动员快速能力的决定因素。速度力量的典型表现形式是爆发力、起动力、反应力。提出青少年足球运动员力量素质发展的敏感期与必要性 ,对速度力量的理论与实践作了概述。     

足球游戏在足球教学中的作用及运用

通过对文献资料的研究和实践观察分析 ,认为在足球教学中 ,运用足球游戏可以培养学生的兴趣 ,发展学生的体能和智力 ,有利于学生更好、更快地掌握足球运动的各种技术与技能 ,对足球教学起到良好的促进作用。     

亚热带地区田径足球场的设计和养护

根据多年实践经验和现场实验对亚热带地区田径足球场的设计和保养维护做了较为全面的论述。文中涉及到的足球场建设的方法、所用材料及必要的数据、养护的方法等都经过实践的验证 ,具有较强的可操作性。     

青少年足球运动员注意范围类型特征研究

进行有关注意范围类型测试,初步探讨了足球运动特殊环境和特殊要求对青少年注意范围类型的影响,以及不同性别和不同年龄阶段注意范围类型发展状况。从注意范围广度、注意范围广阔有效性和注意范围狭窄有效性角度,提出了青少年足球运动员注意范围类型的显著发展阶段。     

体育学院足球专修教学比赛现状及改革设想

教学比赛是教学过程中的一个重要环节，教学比赛不仅能检验教学效果，也能反映学生专项水平的高低。体育学院目前足球专修班教学比赛与实际相脱节，影响了人才培养的规格和质量及教学质量的提高，必须进行改革．     

浅谈我国沙滩排球运动员选材

本文通过相关数据、查阅文献等,确定我国沙滩排球运动员的选材依据和选材标准是:身体形态是选材的前提;技术全面性、战术意识、适应能力、反应移动速度、心理稳定程度、体能等是沙滩排球选材应考虑的重要指标。     

关于足球裁判员注意力的几点思考

分析了足球裁判员在比赛执法过程中注意力的发生和发展情况，并结合注意的基本涵义和基本活动规律，就如何培养足球裁判员的注意力进行了探讨。     

Tier-specific evolution of match performance characteristics in the English Premier League: it’s getting tougher at the top

This study investigated the evolution of physical and technical performances in the English Premier League (EPL), with special reference to league ranking. Match performance observations (n = 14,700) were collected using a multiple-camera computerised tracking system across seven consecutive EPL seasons (2006–07 to 2012–13). Final league rankings were classified into Tiers: (A) 1st–4th ranking (n = 2519), (B) 5th–8th ranking (n = 2965), (C) 9th–14th ranking (n = 4448) and (D) 15th–20th ranking (n = 4768). Teams in Tier B demonstrated moderate increases in high-intensity running distance while in ball possession from the 2006–07 to 2012–13 season (P < 0.001; effect size [ES]: 0.68), with Tiers A, C and D producing less pronounced increases across the same period (P < 0.005; ES: 0.26, 0.41 and 0.33, respectively). Large increases in sprint distance were observed from the 2006–07 to 2012–13 season for Tier B (P < 0.001; ES: 1.21), while only moderate increases were evident for Tiers A, C and D (P < 0.001; ES: 0.75, 0.97 and 0.84, respectively). Tier B demonstrated large increases in the number of passes performed and received in 2012–13 compared to 2006–07 (P < 0.001; ES: 1.32–1.53) with small-to-moderate increases in Tier A (P < 0.001; ES: 0.30–0.38), Tier C (P < 0.001; ES: 0.46–0.54) and Tier D (P < 0.001; ES: 0.69–0.87). The demarcation line between 4th (bottom of Tier A) and 5th ranking (top of Tier B) in the 2006–07 season was 8 points, but this decreased to just a single point in the 2012–13 season. The data demonstrate that physical and technical performances have evolved more in Tier B than any other Tier in the EPL and could indicate a narrowing of the performance gap between the top two Tiers.     

Dribbling determinants in sub-elite youth soccer players

Dribbling speed in soccer is considered critical to the outcome of the game and can assist in the talent identification process. However, little is known about the biomechanics of this skill. By means of a motion capture system, we aimed to quantitatively investigate the determinants of effective dribbling skill in a group of 10 Under-13 sub-elite players, divided by the median-split technique according to their dribbling test time (faster and slower groups). Foot-ball contacts cadence, centre of mass (CoM), ranges of motion (RoM), velocity and acceleration, as well as stride length, cadence and variability were computed. Hip and knee joint RoMs were also considered. Faster players, as compared to slower players, showed a 30% higher foot-ball cadence (3.0 ± 0.1 vs. 2.3 ± 0.2 contacts · s^?1, P < 0.01); reduced CoM mediolateral (0.91 ± 0.05 vs. 1.14 ± 0.16 m, P < 0.05) and vertical (0.19 ± 0.01 vs. 0.25 ± 0.03 m, P < 0.05) RoMs; higher right stride cadence (+20%, P < 0.05) with lower variability (P < 0.05); reduced hip and knee flexion RoMs (P < 0.05). In conclusion, faster players are able to run with the ball through a shorter path in a more economical way. To effectively develop dribbling skill, coaches are encouraged to design specific practices where high stride frequency and narrow run trajectories are required.     

The Structural Adjustment of Football in Zambia: Politics,Decline and Dispersal, 1991–1994

Abstract

This paper explores multiple and complex relationships between football (soccer), politics, and the economy in postcolonial Zambia. Based on archival and oral sources collected in Zambia, the paper argues that President Frederick Chiluba’s government failed to support football development when it came into power in 1991 because it was elected on a platform of liberalizing the collapsing national economy. Chiluba privatized state-owned companies that were sponsoring the game resulting in the plummeting of the local standards and migration of talented footballers abroad in search of better livelihoods. Furthermore, the paper argues that while the exodus of talented footballers led to the deterioration of the standards of the local league, their transnational experience boosted the performance of the Zambia national football team. This led to the emergence of one of the best national teams the country has ever had. Unfortunately, this particular team perished in the Gabon air disaster in 1993 following the government’s disinvestment in the game. However, a few months after the disaster, the country managed to rebuild a national football team, which emerged as runners up to Nigeria in the 1994 African Cup of Nations final as a result of a large pool of local and foreign-based football players.