浅谈足球运动员不同踢球技术踢定位球的技术特点

足球被誉为世界第一运动,是因为它具有参加的人数多、分布广、易展开等特点,深受广大人群的喜爱。足球在高校中已经成为大学生选修课和普修课以及课余锻炼的主要内容,踢球是指运动员有目的地用脚将球击向预定目标的动作方法。踢球是运动员进行比赛活动的主要技术手段,它在比赛中的主要用途是射门和传球。文章运用文献资料法、逻辑分析法等方法,针对足球运动员在踢定位球教学与训练中存在的问题以及结合踢球技术的特点进行分析与探讨,进而综合不同踢球技术踢定位球的技术特点,目的在于通过理论指导实践,使足球技术教学及训练更加科学、系统。     

FIFA 11+练习对足球运动员膝关节生物力学特征和专项素质作用的Meta分析

目的:系统评价FIFA 11+练习对足球运动员膝关节生物力学特征和专项素质的作用,旨在厘清FIFA 11+练习的作用价值及方式。方法:检索国内、外数据库中关于FIFA 11+练习对膝关节生物力学特征及专项素质特征的实验研究,根据Cochrane系统评价手册进行文献质量评价,运用Stata15.1版本的结局指标进行Meta分析、敏感性分析、亚组分析和发表偏倚检验。结果:共纳入20篇中、外文献,712名被试者。Meta分析结果显示:FIFA 11+练习可显著提高足球运动员膝关节股四头肌等速肌力[SMD=0.48(0.26,0.71)]、腘绳肌等速肌力[SMD=0.61(0.33,0.90)]、膝关节稳定性[SMD=0.32(0.17,0.47)]动态平衡能力[SMD=0.48(0.33,0.63)]、敏捷性[-0.40(-0.75,-0.06)]和弹跳能力[SMD=0.33(0.19,0.48)],对短距冲刺能力无显著提高作用[SMD=-0.67(-1.43,0.09)]。结论:1)FIFA 11+练习可显著提高足球运动员膝关节肌力、动态平衡能力、弹跳能力和敏捷性;不同角速度、年龄分别是膝关节等速肌力、敏捷性异质性的来源;2)FIFA 11+练习对足球运动员短距冲刺能力无显著改善效果。     

体育规则：足球规则修改与集体项目规则的比较研究

本文以法学视角,尤其是国际法视角,通过研读规则文本的方式,对足球规则的演进进行分析,并且揭示一些目前体育法领域关注的问题:体育法(lex sportiva)确实存在,包含了公法部分(国际公约、国家立法)和私法部分(体育规则);体育规则(Laws of the game)是体育法的核心,包括国家、地区以及全球范围内各级体育主管部门的章程与条例;项目规则是体育法的另一个重要核心,作者以足球为例,论证了为什么项目规则也是法的问题。     

Effects of small-volume soccer and vibration training on body composition,aerobic fitness,and muscular PCr kinetics for inactive women aged 20–45

PurposeThe present study investigated the effects of 16 weeks of small-volume, small-sided soccer training soccer group (SG, n = 13) and oscillating whole-body vibration training vibration group (VG, n = 17) on body composition, aerobic fitness, and muscle PCr kinetics in healthy inactive premenopausal women in comparison with an inactive control group (CO, n = 14).MethodsTraining for SG and VG consisted of twice-weekly 15-min sessions with average heart rates (HRs) of ∼155 and 90 bpm respectively. Pre- and post-measurements of body composition (DXA), phosphocreatine (PCr) on- and off-kinetics, and HR measurements during standardised submaximal exercise were performed.ResultsAfter 16 weeks of training in SG, fat percentage was lowered (p = 0.03) by 1.7% ± 2.4% from 37.5% ± 6.9% to 35.8% ± 6.2% and the PCr decrease in the quadriceps during knee-extension ramp exercise was attenuated (4% ± 8%, p = 0.04), with no changes in VG or CO (time-group effect: p = 0.03 and p = 0.03). Submaximal exercise HR was also reduced in SG after 16 weeks of training (6% ± 5% of HR_max, p = 0.01).ConclusionShort duration soccer training for 16 weeks appears to be sufficient to induce favourable changes in body composition and indicators of aerobic fitness and muscle oxidative capacity in untrained premenopausal women.     

Return to play management after concussion in football: recommendations for team physicians

Abstract

A concussion is a rare but potentially serious injury of football players. Thus, an immediate and valid diagnosis, estimate of severity and therapeutic management is required. To summarise the published information on management of concussion with respect to a safe return to play (RTP), a literature search was conducted. Current guidelines on concussion in sports and significant studies on concussion in football were analysed. After concussion, management and RTP decision should remain in the area of clinical judgement on an individualised basis according to the current international guidelines. If a concussion is suspected, the player should not be allowed to RTP the same day. The RTP programme should follow a gradual step-wise procedure. A concussed player should not RTP unless he/she is asymptomatic and the neurological and neuropsychological examinations are normal. Untimely RTP bears an increased risk of sustaining another more severe brain injury and repetitive brain injury of long-term sequelae. In football, the management of concussion should primarily follow the recommendations proposed by the Concussion in Sports Group. Information and education of players and their medical and coaching team help to protect the players’ health. Future studies on concussion should include validated and detailed information on RTP protocols.     

Acute responses of soccer match play on hip strength and flexibility measures: potential measure of injury risk

Abstract

Regular measurements of groin risk factors may offer a preventive measure against injury. Therefore, the aim of this study was to (1) determine minimal detectable change (MDC) and reliability of hip flexibility and strength measures and to (2) identify the effect soccer match play load has on these measures. Reliability was determined for bent knee fall out test, hip abduction and adduction (hand-held dynamometry (HHD)) in 20 trained youth male soccer players. Reliability was evaluated with the intra-class correlation coefficient (ICC_[2,1]), 95% confidence intervals (CI). Hip strength and flexibility measures were taken before and after an international friendly match. Intra-rater reliability ICC ranges were bent knee fall out (0.75–0.90), abduction (0.83–0.90) and adduction (0.72–0.96). Inter-rater ICCs (95% CI) were bent knee fall out test [0.75 (0.39–0.90) right, 0.71 (0.27–0.89) left hip]; abduction [0.80 (0.50–0.92) right, 0.81 (0.53–0.92) left hip] and adduction [0.72 (0.31–0.89) right, 0.70 (0.26–0.88) left hip]. MDCs were as low as 20.7% of the mean for hip flexibility and 12.5% for strength. In conclusion, HHD and the bent knee fall out test are reliable tools to measure changes in hip strength and flexibility. Finally, a threshold may exist in which match play load negatively impacts hip flexibility.     

Are the Yo-Yo intermittent recovery test levels 1 and 2 both useful? Reliability,responsiveness and interchangeability in young soccer players

Abstract

The aim of this study was to compare the reliability, internal responsiveness and interchangeability of the Yo-Yo intermittent recovery test level 1 (YY1), level 2 (YY2) and submaximal YY1 (YY1-sub). Twenty-four young soccer players (age 17 ± 1 years; height 177 ± 7 cm; body mass 68 ± 6 kg) completed each test five times within pre- and in-season; distances covered and heart rates (HRs) were measured. Reliability was expressed as typical error of measurement (TEM) and intraclass correlation coefficient (ICC). Internal responsiveness was determined as effect size (ES) and signal-to-noise ratio (ES_TEM). Interchangeability was determined with correlation between training-induced changes. The TEM and ICC for distances in the YY1 and YY2 and for HR in YY1-sub were 7.3% and 0.78, 7.1% and 0.93 and 2.2% and 0.78, respectively. The ESs and ES_TEMs were 0.9 and 1.9 for YY1, 0.4 and 1.2 for YY2 and ?0.3 and ?0.3 for YY1-sub. Correlations between YY1 vs. YY2 and YY1-sub were 0.56 to 0.84 and ?0.36 to ?0.81, respectively. Correlations between change scores in YY1 vs. YY2 were 0.29 and ?0.21 vs. YY1-sub. Peak HR was higher in YY1 vs. YY2. The YY1 and YY2 showed similar reliability; however, they were not interchangeable. The YY1 was more responsive to training compared to YY2 and YY1-sub.     

Cultural Evolution and Ideology in Korean Soccer: Sport and Nationalism

Modern Korean sports have been adopted mostly from the West, but now Korea has emerged as a sporting power demanding global attention. The influence of historical and political ideology has been in the cultural background of Korean sports development, and the process of cultural evolution in soccer may be explained in the similar context. What helped the Korean soccer team qualify for the World Cup eight consecutive times – only the sixth country in the world to do so – thus making it the most powerful soccer team in Asia? Soccer initially appeared in Korea during the threat of Japanese invasion, and this backdrop provided the opportunity for soccer to be combined with nationalism and transformed into a cultural product that confronted Japanese imperialism. Since the Korean War, South Korean soccer has become a vehicle for ideological confrontation with North Korea amid the atmosphere of the Cold War, and it thus gave rise to sports nationalism by revealing an ideological superiority and nationalistic disposition. Soccer, which arrived in Korea on a British ship, has become a representative Korean sport and continuously challenges the global stage ahead of Asia's leading economic power. It was against the background of such rapid development that nationalism formed.     

青少年业余足球运动员运动倾向性5因素结构模型初探

根据Scanlan等人最新提出的运动倾向性理论模型,结合我国实际情况建立了青少年足球运动员运动倾向性5因素结构模型。运动倾向性被定义为:渴望和决心继续参加足球运动的心理状态。所建立的5因素结构模型认为,运动倾向性是由运动乐趣、参与选择、个人投入、社会约束及参与机会5个因素决定。经确定5个决定因素和运动倾向性的操作定义,编制了相应调查问卷,通过对北京市252名青少年足球运动员实测结果,建立运动倾向性及其影响因素的协方差结构模型,用Lisre 18分析的结果表明:该运动倾向性模型比较符合北京青少年足球运动员。其中运动乐趣、个人投入、参与机会和参与选择4因素对运动倾向性有影响;社会约束对运动倾向性影响不大。