太极柔力球在普通高校开展的价值与展望

太极柔力球是一项新兴的民族传统体育项目,在高校开展太极柔力球运动具有文化价值、体育锻炼价值、观赏价值、娱乐价值和竞技价值。在不断地发展中它必将走上规范化、科学化、竞技化、国际化、信息网络化的发展轨道。     

盲人足球定位球射门时注意力集中的心理训练实验研究

根据盲人足球运动员的生理特点,设计了足球定位球射门时注意力集中的心理训练方法,并分实验组和对照组进行训练,然后对其训练方法从不同角度进行了分析研究。实验结果表明,足球定位球射门时注意力集中的心理训练方法可以提高盲人足球运动员的技术战术配合和射门的成功率,且盲人足球定位球射门的技术与心理训练有高度密切的联系。     

浅谈青少年篮球训练中的罚球心理训练

论述了罚球在比赛中的重要作用,罚球心理训练的重要性及方法,罚球心理训练应从青少年抓起,从小打下良好的心理基础,使他们进入高水平运动队后能有更大的发展。     

原地双手后抛实心球的技术分析与训练方法研究——关于体育高考术科考试项目分析

原地双手后抛实心球是广西体育高考术科考试中必考的一个项目,文章通过对原地双手后抛实心球技术进行详细分析,并针对它的动作结构进行系统的科学训练,以期为提高考生考试成绩和广大体育教师的业余训练提供可靠依据。     

浅谈毽球脚攻球技术的训练方法

文章通过对毽球脚攻球技术的运用、研究和探索,结合现代毽球运动中脚攻球的技术特点,介绍了毽球脚攻球技术的训练原则、训练步骤、训练方法等。毽球运动是具有鲜明特点的运动项目,因此,要根据它的自身特征来进行训练,而脚攻球技术是毽球运动中的重点和难点,教练员和运动员要着重进行局部训练,以提高运动员的竞技水平。     

多球发球机应用于乒乓球技术考核的实验研究

通过应用仪器测试和人工测试方法,对体育院系乒乓球技术考核的结果进行相关分析,对多球发球机应用于乒乓球技术考核进行了探索,以探求乒乓球技术考核的标准化途径。证明应用多球发球机进行乒乓球基本技术考核是可行的,它具有连续性强、长时间持续高强度工作、能保持送球质量的统一和稳定性,减小送球的随意性和主观性。同时提出其应用于技术考核的不足之处,探讨发球机用于技术考核的适宜对象和适宜内容。     

对普通高校乒乓球普修课的多球教学研究

采用文献资料法、实验法、访谈法等方法,以普修乒乓球课的学生为对象,对学生的乒乓球多球教学进行研究,目的在于通过多球训练方法,全面提高学生的技术水平。研究结果表明多球练习可以加强单位时间训练的密度、强度,做到反复练习,对于提高基本技术和步法效果明显。     

Using improvisational exercises in general education to advance creativity,inventiveness and innovation

Creativity is the process of generating something new or original that has value to an individual, a group, an organization, an industry or a society. Improvisational theater techniques are used to enhance creative thinking and action in a variety of disciplines as broad as education, theater, dance, painting, writing and music, law, business, and most recently, entrepreneurship. This paper describes an academic setting that draws upon the definition, techniques and improvisational methods as prerequisites for a progression of increased experiences of idea generation, new product invention and innovation. Improvisation is used as a critical ingredient to enhance creativity for undergraduate liberal arts students in a freshman general studies course leading to student product development and field-based innovations.     

Novel mathematical model to estimate ball impact force in soccer

To assess ball impact force during soccer kicking is important to quantify from both performance and chronic injury prevention perspectives. We aimed to verify the appropriateness of previous models used to estimate ball impact force and to propose an improved model to better capture the time history of ball impact force. A soccer ball was fired directly onto a force platform (10 kHz) at five realistic kicking ball velocities and ball behaviour was captured by a high-speed camera (5,000 Hz). The time history of ball impact force was estimated using three existing models and two new models. A new mathematical model that took into account a rapid change in ball surface area and heterogeneous ball deformation showed a distinctive advantage to estimate the peak forces and its occurrence times and to reproduce time history of ball impact forces more precisely, thereby reinforcing the possible mechanics of ‘footballer’s ankle’. Ball impact time was also systematically shortened when ball velocity increases in contrast to practical understanding for producing faster ball velocity, however, the aspect of ball contact time must be considered carefully from practical point of view.     

Match-derived relative pitch area changes the physical and team tactical performance of elite soccer players in small-sided soccer games

Small-sided games (SSGs) are used in training sessions to prepare for full-sized matches. For the same number of players, smaller pitch sizes result in decreased physical performance and shorter interpersonal distances. A relative pitch area derived from the full-sized match results in larger pitch sizes and this may increase the fit between SSGs and full-sized matches. This study aimed to investigate SSGs with a traditional small pitch and a match-derived relative pitch area in youth elite soccer players. Four age categories (under-13, under-15, under-17 and under-19) played 4 vs. 4 plus goalkeepers on a small (40x30m, 120m² relative pitch area) and large pitch (68x47m, 320m² relative pitch area). The number of games per age category ranged 15–30. Positional data (LPM-system) were collected to determine physical (total distance covered, high intensity distance and number of sprints) and team tactical (inter-team distance, LPW-ratio, surface area, stretch indices, goalkeeper-defender distance) performance measures and tactical variability. On a large pitch, physical performance significantly increased, inter-team and intra-team distances were significantly larger and tactical variability of intra-team distance measures significantly increased. The match-derived relative pitch area is an important training manipulation and leads to changes in physical and tactical performance 4 vs. 4 plus goalkeepers.