第29届奥运会中国女子手球队与前3名球队攻防技术的对比研究     

魏晓磊 《辽宁体育科技》2010,32(3):69-72

采用文献资料、录像观察、数理统计等方法,对第29届奥运会中国女子手球队与获得前3名的球队（冠军挪威队、亚军俄罗斯队、季军韩国队）在攻防技术方面进行对比分析,结果表明：中国女子手球队在攻防技术方面存在不足,并在此基础上提出相关建议。  相似文献   

本钢冷轧闪光焊机的工艺原理及参数优化与控制     

荣光  刘福军 《辽宁科技学院学报》2008,10(4):3-4

介绍了本钢冷轧厂闪光焊机的工作原理及基本焊接数据,详细的分析了针对不同规格产品焊机的工艺参数控制与调节,尤其针对冷轧厂超薄规格的BSP短流程的热轧来料,经过大量的焊接实验,从原料、设备、工艺等各个角度进行了全面系统的分析,给出了适合冷轧厂生产的完整焊接工艺参数,从而达到了优良焊接的目的。  相似文献   

A national sports institute as a learning culture     

Jessica Lee  Nathan Price 《Physical Education & Sport Pedagogy》2016,21(1):10-23

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How does visual manipulation affect obstacle avoidance strategies used by athletes?     

M. P. Bijman  J. J. Fisher 《Journal of sports sciences》2016,34(10):915-922

Research examining our ability to avoid obstacles in our path has stressed the importance of visual input. The aim of this study was to determine if athletes playing varsity-level field sports, who rely on visual input to guide motor behaviour, are more able to guide their foot over obstacles compared to recreational individuals. While wearing kinematic markers, eight varsity athletes and eight age-matched controls (aged 18–25) walked along a walkway and stepped over stationary obstacles (180° motion arc). Visual input was manipulated using PLATO visual goggles three or two steps pre-obstacle crossing and compared to trials where vision was given throughout. A main effect between groups for peak trail toe elevation was shown with greater values generated by the controls for all crossing conditions during full vision trials only. This may be interpreted as athletes not perceiving this obstacle as an increased threat to their postural stability. Collectively, findings suggest the athletic group is able to transfer their abilities to non-specific conditions during full vision trials; however, varsity-level athletes were equally reliant on visual cues for these visually guided stepping tasks as their performance was similar to the controls when vision is removed.  相似文献   

Quality of life perception of basketball master athletes: association with physical activity level and sports injuries     

Natália Boneti Moreira  Oldemar Mazzardo  Gislaine Cristina Vagetti  Valdomiro De Oliveira  Wagner De Campos 《Journal of sports sciences》2016,34(10):988-996

This study aimed to verify the prevalence and characteristics of sports injuries (SI) and determine the association between the physical activity level (PA) and SI with perception of health-related quality of life (HRQoL) in Brazilian basketball master athletes. A cross-sectional study was conducted with 410 male master athletes, between 35 and 85 years of age (mean 52.26, SD ±11.83). The HRQoL was assessed using the Medical Outcomes Study – Short Form-36. The PA was evaluated using the International Physical Activity Questionnaire. Information regarding SI was collected using the Reported Morbidity Survey. Poisson regression, as estimated by the prevalence ratio (PR), was used as a measure of the association of PA and SI with HRQoL. The majority of athletes showed a high SI prevalence (58.3%) and reported one injury (67.8%) that occurred during training (61.1%) and primarily affected a lower limb (74.6%). The adjusted regression models showed a positive association of PA with the Functional Capacity (PR = 1.46, 95% confidence interval [CI] = 1.12–1.90) and Physical Component (PR = 1.32, 95% CI = 1.03–1.70) of HRQoL. Furthermore, the SI were negatively associated with HRQoL in Functional Capacity (PR = 1.85, 95% CI = 1.51–2.27), Physical Aspects (PR = 3.99, 95% CI = 3.08–5.18), Pain (PR = 1.65, 95% CI = 1.26–2.16), Social Functioning (PR = 1.79, 95% CI = 1.41–2.27), Emotional Aspects (PR = 4.40, 95% CI = 3.35–5.78), Mental Health domains (PR = 1.37, 95% CI = 1.06–1.68), Physical Component (PR = 2.35, 95% CI = 1.90–2.90) and Mental Component (PR = 2.65, 95% CI = 2.14–3.29). These results highlighted that master athletes showed a high SI prevalence, primarily in the lower limbs. PA positively correlates with the physical HRQoL domain, whereas SI may decrease the HRQoL levels of both physical and mental domains.  相似文献   

The key to success in elite athletes? Explicit and implicit motor learning in youth elite and non-elite soccer players     

L. Verburgh  E. J. A. Scherder  P. A. M. van Lange  J. Oosterlaan 《Journal of sports sciences》2016,34(18):1782-1790

In sports, fast and accurate execution of movements is required. It has been shown that implicitly learned movements might be less vulnerable than explicitly learned movements to stressful and fast changing circumstances that exist at the elite sports level. The present study provides insight in explicit and implicit motor learning in youth soccer players with different expertise levels. Twenty-seven youth elite soccer players and 25 non-elite soccer players (aged 10–12) performed a serial reaction time task (SRTT). In the SRTT, one of the sequences must be learned explicitly, the other was implicitly learned. No main effect of group was found for implicit and explicit learning on mean reaction time (MRT) and accuracy. However, for MRT, an interaction was found between learning condition, learning phase and group. Analyses showed no group effects for the explicit learning condition, but youth elite soccer players showed better learning in the implicit learning condition. In particular, during implicit motor learning youth elite soccer showed faster MRTs in the early learning phase and earlier reached asymptote performance in terms of MRT. Present findings may be important for sports because children with superior implicit learning abilities in early learning phases may be able to learn more (durable) motor skills in a shorter time period as compared to other children.  相似文献   

运动员感恩的价值及其培养策略分析     

董良山  王斌  叶绿  卜姝 《湖北体育科技》2016,(8):734-737

运动员感恩教育是指运动队的管理者或者教练员根据运动员的个性特点,在训练和比赛的过程中运用一定的方法和手段,创造一定的感恩氛围,激发和引导运动员对知恩、感恩、报恩、施恩的价值认同,并付诸实践的道德教育过程。运动员感恩的价值主要体现在增加运动员的心理应对资源;促进运动员行为的积极变化;建立和维持运动员的人际关系网络。对运动员进行感恩教育的培养策略可以从以下3个方面进行:营造良好的感恩教育环境;创新感恩教育的方式、方法;提升感恩认知和行为。  相似文献   

中国皮划艇国家二队功能动作筛查的应用研究     

李琴  高潼阳  贾昊哲  孔运峰  余银 《湖北体育科技》2016,(11):997-1000

运用文献资料法、测试法、问卷调查法、专家访谈法和数理统计法对国家皮划艇青年队进行功能动作筛查测试,根据测试结果为备战2020年奥运会提供数据及理论的支持。通过研究发现:划艇运动员的总分情况整体优于皮艇运动员;大部分运动员髋、膝、踝三关节在单一的运动平面中具有较好的协调和稳定性,但在两个以上的运动平面中完成动作的稳定和控制能力有待提高;运动员的髋关节、肩关节及股四头肌柔韧性存在不平衡现象,左侧链与右侧链在多运动平面中协调稳定性也存在不平衡现象;运动员的损伤率较高,且损伤的主要部位是肩和腰。  相似文献   

智慧城市整体建模技术初探     

邱嘉文 《中国科技资源导刊 (中国信息导报)》2016,(5):35-41

为破解智慧城市分行业垂直构建信息系统带来的信息资源分散整合的难题,本文提出一个新的解决方案, 即运用“分层构建、横向整合、模型聚合、平行演进”的机制,模仿智慧生命体的层次架构对智慧城市进行层次化的建 模设计,使得在现实城市中纵向分布的信息资源,在信息系统的虚拟城市模型中得到横向的大整合,发掘出一项在云 计算和大数据的环境下,可对垂直构建的信息系统进行具有兼容性、诱导性和可演进性的整体架构设计的新技术  相似文献   

阮元教育思想探析     

周玲 《张家口职业技术学院学报》2005,18(4):6-10

清代著名学者阮元,创办了新式书院诂经精舍和学海堂,旨在培养有"经世致用"、对社会有用的人才.书院提倡德才兼备;主张因材施教,自由探讨;强调实事求是,学以致用;学术研究和教学相结合;确立破旧立新、推举学长的教学体制.倡导了实践,培养了学生的实际能力.阮元的教育思想和实践对清末的教育界产生了深远的影响,为中国的教育事业做出了突出的贡献.  相似文献