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采用文献资料法、数理统计法、录像观察法和专家访谈法对2014-2015赛季NBA总决赛勇士队与骑士队六场比赛进行研究,以此为基点进一步从技战术、球员等方面探讨勇士队制胜的主要因素。结果表明:投篮命中率、三分球、防守篮板球的保护、抢断、助攻与快攻得分是勇士队取胜的关键技术因素;阵容结构的合理性、攻防两端战术安排和运用是勇士队取胜的关键战术因素。另外核心球员的稳定发挥尤其是1号位球员的进攻与组织能力以及强硬的心理素质和替补队员的绝对优势对勇士队夺冠起到极其重要的作用。 相似文献
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运用录像分析法、专家访谈法、数理统计法对2014-15赛季欧洲足球冠军联赛125场比赛中的361粒进球进行统计分析。结果显示:76-90min是进球高峰期;前锋球员是主要得分手,中场球员是主要进攻组织者;中场球员助攻最多,短传与传中是主要助攻方式;进攻发起区域以中场为主,抢断与失误在进攻中占据重要作用;进攻路线以中路边路配合为主,定位球进攻越来越重要;2-5名球员通过1-5次的快速向前传球在进攻中占据优势;运球突破、前场任意球、长传转移、短传渗透是攻入前场30m区域的主要战术方式;禁区内的抢点射门是最主要的进球方式、2区是最佳得分区域,不同位置、区域进球方式有所差异。 相似文献
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网球墙实用且廉价,它可以作为教学工具,也可以作为普及网球运动的一种手段。采用文献资料、实验、数理统计等方法对网球墙在少年儿童网球学习中的作用进行研究,证明科学合理的利用网球墙可以解决少年儿童网球课教学中学生多、场地少、时间短的问题,对提高教学效率有重要作用,为少年儿童网球课的教学提供一些参考依据。 相似文献
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Lili Wu Xiao Ma Yutong Shi Shasha Tao Yong Yu Sijia Wang 《Research quarterly for exercise and sport》2019,90(2):105-112
Purpose: To summarize the framework and development procedure of the China National Assessment of Education Quality - Physical Education & Health in 2015 (CNAEQ-PEH 2015), an authoritative and evidence-based national surveillance protocol developed by the Ministry of Education of the People’s Republic of China for Grade 4 and Grade 8 students. Methods: The framework of CNAEQ-PEH 2015 included a test battery of physical fitness and health outcomes and self-reported questionnaires regarding facilitators and barriers to physical fitness and health in school settings and family status, completed by students, teachers, and principals. A qualified, standardized, and responsible work procedure was generated to provide insights into the quality of data collection and supervision of large-scale school-based physical fitness testing implementation. Measure development, stratified unequal probability sampling, and implementation were included in the working procedure. Results: In the first circle of the CNAEQ-PEH conducted on June 18, 2015, 111,173 Grade 4 students from 4,015 elementary schools and 72,243 Grade 8 students from 2,461 middle schools, along with their principals (n = 6,447) and physical education (PE) teachers (n = 11,418), were sampled by probability proportionate to size (PPS) across 323 counties in China. Results provided detailed information regarding students’ physical fitness outcomes, learning, lifestyle, and educational environment. Conclusions: CNAEQ-PEH 2015 is a large-scale assessment of physical fitness and health outcomes. It helps provide opportunities to understand the physical fitness and health status of Chinese Grade 4 and 8 students and to study the correlations of physical fitness and health, as well as their relationship with education-related indicators and academic performance. 相似文献
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运用文献资料法、数理统计法对2014~2015赛季WCBA联赛的赛制改革进行调查分析,通过赛制改革对球队、球员、市场所带来的一些影响进行分析和研究,得出新赛季赛制改革所带来的一些有利和不利的结论. 相似文献
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Malina RM Peña Reyes ME Eisenmann JC Horta L Rodrigues J Miller R 《Journal of sports sciences》2000,18(9):685-693
Height, mass and skeletal maturity (Fels method) were assessed in 135 elite youth soccer players aged 10.7-16.5 years (only two boys were < 11.0 years). Sample sizes, years of training and current weekly training volume by two-year age groups were: 11-12 years (n = 63), 2.6 +/- 1.0 years and 4.1 +/- 1.7 h; 13-14 years (n = 29), 3.1 +/- 1.6 years and 4.5 +/- 1.7 h; 15-16 years (n = 43), 4.7 +/- 2.4 years and 6.1 +/- 2.0 h. The oldest age group included members of the national youth team. Heights and masses were compared to US reference values, and skeletal age and chronological age were contrasted. The players were also classified as late, average ('on time') and early maturers on the basis of differences between skeletal and chronological age, with the average category including boys with skeletal ages within +/- 1 year of chronological age. The mean heights and masses of 11- to 12-year-old soccer players equalled the US reference values, while those of players aged 13-14 and 15-16 years were slightly above the reference values. The mean skeletal age approximated mean chronological age in players aged 11-12 years (12.4 +/- 1.3 and 12.3 +/- 0.5 years, respectively), while mean skeletal age was in advance of mean chronological age in the two older groups (14.3 +/- 1.2 and 13.6 +/- 0.7 years, respectively, in 13- to 14-year-olds; 16.7 +/- 1.0 and 15.8 +/- 0.4 years, respectively, in 15- to 16-year-olds). Seven boys in the oldest age group were already skeletally mature and were not included when calculating differences between skeletal and chronological age. The proportion of late maturing boys in this sample of elite soccer players decreased with increasing chronological age. Among 11- to 12-year-old players, the percentages of late and early maturing boys were equal at 21% (n = 13). Among 13- to 14-year-old players, the percentages of late and early maturing boys were 7% (n = 2) and 38% (n = 11) respectively, while among players aged 15-16 years the percentages of late and early maturing boys were 2% (n = 1) and 65% (n = 28) respectively. The results of this comparative analysis suggest that the sport of soccer systematically excludes late maturing boys and favours average and early maturing boys as chronological age and sport specialization increase. It is also possible that late maturing boys selectively drop-out of soccer as age and sport specialization increase. 相似文献
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Steinberg N Siev-Ner I Peleg S Dar G Masharawi Y Zeev A Hershkovitz I 《Journal of sports sciences》2012,30(5):485-495
In the present study, we tried to determine the association between joint ranges of motion, anatomical anomalies, body structure, dance discipline, and injuries in young female recreational dancers. A group of 1336 non-professional female dancers (age 8-16 years), were screened. The risk factors considered for injuries were: range of motion, body structure, anatomical anomalies, dance technique, and dance discipline. Sixty-one different types of injuries and symptoms were identified and later classified into four major categories: knee injuries, foot or ankle tendinopathy, back injuries, and non-categorized injuries. We found that 569 (42.6%) out of the 1336 screened dancers, were injured.The following factors were found to be associated with injuries (P < 0.05): (a) range of motion (e.g. dancers with hyper hip abduction are more prone to foot or ankle tendinopathies than dancers with hypo range of motion; (b) anatomical anomalies (scoliotic dancers manifested a higher rate of injuries than non-scoliotic dancers); (c) dance technique (dancers with incorrect technique of rolling-in were found to have more injuries than dancers with correct technique); (d) dance discipline (an association between time of practice en pointe and injury was observed); and (e) early age of onset of menarche decreased risk for an injury. No association between body structure and injury was found. Injuries among recreational dancers should not be overlooked, and therefore precautionary steps should be taken to reduce the risk of injury, such as screening for joint range of motion and anatomical anomalies. Certain dance positions (e.g. en pointe) should be practised only when the dancer has already acquired certain physical skills, and these practices should be time controlled. 相似文献
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心理评价是体质综合评价中不可缺少的重要部分。文章通过对重庆市近600名16~18岁健康男女中学生的测试,以及文献资料的综合研究,对筛选体质综合评价中心理指标的相关问题——心身关系作了较为深入的研究。研究发现,心身在机能上存在相互影响,相互作用,但其机能水平之间却没有数量上的线性关系。通过较为系统的分析讨论,还初步提出将16PF 中的13项指标列为体质综合评价中的心理指标。 相似文献