Seasonal progression and variability of repeat-effort line-drill performance in elite junior basketball players

To determine gender differences, positional differences, and patterns of change in the performance of the basketball line-drill test, 93 male (mean age 16.8 years, s = 1.1) and 95 female (mean age 16.5 years, s = 1.0) basketball players undertook 516 line-drill tests over a 5-year period. Log-transformed performance times were analysed using a mixed model that included quadratic within-participant fixed effects for time in the season and time in the programme. Changes and differences were standardized for interpretation of magnitudes. Mean performance times were 28.0 s (s = 1.3) for males and 30.4 s (s = 1.3) for females. The mean pattern of change in performance within a season differed substantially between the sexes and playing positions: male guards and female centres showed moderate to very large improvements mid-season of 1.1% and 3.5% respectively (90% confidence limits +/-2.1% and +/-3.0%), while female guards and male forwards showed large to very large decrements of -1.6% (+/-2.6%) and -2.4% (+/-2.0%). Over 3 years, males improved performance across all three playing positions by 1.4% (+/-1.3%) and females by 2.9% (+/-1.4%). Males improved performance by 0.2% (+/-0.5%) per year, whereas the performance of females deteriorated by 0.6% (+/-0.4%) per year. The differing patterns of performance change presumably reflect variations in training and competition loads, with short-term fluctuations in performance being managed to promote longer-term improvements.     

《召伯甘棠图碑》鉴赏

《召伯甘棠图碑》原立于陕西省重点文物保护单位周公庙内召公殿前,1981年移存于岐山县博物馆收藏,经鉴定系馆藏三级珍贵石刻。     

安徽省领导干部体育参与现状的研究

采用问卷调查法等,对处级以上领导干部体育参与现状进行调查,旨在为促进干部的身体健康提供科学依据。     

关于体育舞蹈在高校体育教育中的可行性调查与研究

高校是培养高层次专门人才的主要场所,而高校体育教育是其中必不可少的部分.现代大学生是有抱负、有思想的青年,他们行为大胆勇于追求,向往美好事物和未来.随着视野的开阔希望成为具有现代气息、知识渊博、有气质、漂亮大方的新青年.体育舞蹈是一种源于欧美的特色运动,运动本身集聚特色.它那富有激情的音乐和感召力的舞姿尤其能博得学生的喜爱.体育舞蹈在我国得到开展和普及还不够,其中学生运动员占三分之二的比例,多数集中在发达地区,分布不均衡,许多高校仍没有开展体育舞蹈项目的教学.为了使这项运动在高校开展得更为充分,使更多学生参与进来,本文做了大量调查研究,高校是开展体育舞蹈、发展此项运动的最佳场所.     

高校自组织体育教学内容体系构建的几个问题

从自组织体育教学的概念出发,分析了体育教学的自组织对教学内容建构的影响,提出将预定性与生成性相结合,在动态的教学过程中,整合课程教学目标,构建以“满足学习者的主体需要”为核心的高校自组织体育教学内容体系。     

专科体育毕业生就业期望的个案调查研究

以广西体育高等专科学校2007届毕业生为研究样本,对专科体育毕业生就业期望的工作单位类型、工作所在地、第一份工作月薪、影响自身就业竞争力的内在要素、解决就业难的主要途径等5个方面进行研究。结果表明,毕业生对就业形势仍缺乏清晰的了解、就业观念亟待改变、对就业竞争的估计不足等问题,并提出了改进专科体育毕业生就业工作的建议。     

基于SWOT分析的我国体育培训市场开发对策研究

运用现代管理学SWOT分析法,对中国体育培训市场的内部环境和外部环境进行了分析,概括了中国体育培训市场开发中所面临的优势、劣势、机遇、威胁。并提出了扩大优势,缩小劣势,把握机遇和化解威胁的若干策略。     

论体育文化价值判断的先验与综合

以文化价值判断先验与综合的一般原理作为理论基础,从逻辑哲学的角度分析了体育文化价值判断的先验与综合。提出对体育文化价值判断进行正确的先验与综合是人们更深刻的认识体育文化内涵和实现不同国家、民族体育文化发展的先决条件。     

Steps counts among middle school students vary with aerobic fitness level

The purpose of this study was to examine if steps/day taken by middle school students varied based on aerobic fitness classification. Middle school students (N = 223; 112 girls, 111 boys) were assigned to three aerobic fitness categories (HIGH, MOD, LOW) based on results of the FlTNESSGRAM PACER test. Four weekdays of pedometer monitoring determined activity levels (steps/day). Boys accumulated significantly more steps/day than girls, 11,589 +/- 3,270 and 10,232 +/- 2,517 steps/day, respectively; F(1,219) = 16.0, p < .001, eta2 = .055. There were no differences in steps/day between grades. HIGH fit participants accumulated significantly more steps/day, F(2, 217) = 12.2, p < .101, eta2 = .101, than moderately fit and low fit participants (approximately 1,491 and ; 2,867 steps/day, respectively). Middle school students who participated in sports in addition to physical education (PE) accumulated significantly more steps/day (approximately 980 steps/day) than those participating in PE only, F(1, 219) = 10.0, p < .01, eta2 = .044. Although the relationship between physical activity and aerobic fitness was moderate (0.35; p < .01), these data demonstrated significant differences in accumulated steps/day among youth of varying aerobic fitness levels. Whether improved fitness levels were the result of additional activity or the cause of it remains to be determined. Regardless, the fittest middle school students were also the most active and accumulated a significant amount of steps/day through organized extracurricular physical activities.     

Special populations: the female player and the youth player

Females and youth are frequently described as "special" populations in football literature, but together these two populations outnumber male players. What makes females "special" is that they tend to eat less when training and competing than their male counterparts, leading to lower intakes of energy, carbohydrate, and some nutrients. Youth football players are special in regard to energy and nutrient requirements to promote growth and development, as well as to fuel sport. There is limited research on the dietary habits of these two populations, but the available literature suggests that many female and youth players need to increase carbohydrate intake, increase fluid intake, and develop dietary habits to sustain the demands of training and competition.