辽宁省群众性壁球运动开展现状的调查研究

通过文献资料、问卷调查、访谈等研究方法,对辽宁省群众性壁球运动开展的现状进行调研分析,研究结果表明辽宁省群众性壁球运动开展是以城市的经济、文化发展水平为基础,以企事业单位的中、壮年工作人员为主要群体。目前辽宁省内各市的壁球场馆较少、缺乏专职教练,对辽宁省群众性壁球运动的开展普及有阻碍作用。     

全国冠军永富军射箭动作肩部晃动特征运动学分析

采用文献资料法、实验法、数理统计法,以射箭项目全国冠军永富军为研究对象,对其射箭技术动作进行运动学分析,结果表明:双肩在不同方向的晃动程度中右肩在上下方向晃动程度最强,左肩在前后方向晃动程度最弱,且整体上右肩的晃动程度比左肩的晃动程度强。旨在为其成绩的提高提供理论依据。     

动作技能学习理论的历史脉络

动作技能学习理论历来受到心理学和教育学的重视。对动作技能学习理论的演变进行了梳理,并着重对动作技能学习的联结主义—行为主义理论、认知主义—建构主义理论及动作技能的内隐学习进行了探讨,以期对动作技能学习理论的研究和实践提供参考。     

浅析跳台反身转体 5337D 的教学方法简

要保持我国跳水项目在世界上的优势,必须发展转体动作的难度。为使更多运动员尤其是青少年能够成功顺利地掌握跳台反身转体5337D（即反身翻腾一周半转体三周半）动作,在梳理以往教学方法实践的基础上,提出了保留弹网保护带及陆上辅助措施,避开陆上跳板,水上一米板,三米板的诱导动作,转换成三米台、七米台的诱导动作等新的构思,使转体动作的学习过程简单化,提高学习转体过程的成功率。     

中国优秀男子标枪运动员“扒地式”交叉步右侧动作的三维运动学分析

以全国田径大奖赛男子标枪比赛前10名中的9名右手投枪选手的18人次投掷技术作为研究对象，运用文献资料法、数理统计法、三维录像解析法对我国优秀男子标枪运动员交叉步结束右脚着地前后身体右侧动作进行了运动学分析。结果表明，扒地式交叉步技术能有效的减少右脚单支撑的时间。促进左腿尽快着地，使最后用力进入双支撑用力阶段的效果更加突出，更有利于提高运动成绩。     

高校篮球教学中假动作的分析与训练

篮球教学是实现体育教育目的的基本途径之一,是整个大学体育教学活动系统的一个重要组成部分。假动作是篮球教学中最难掌握的技能之一。本文在此对假动作教学中技术实质与训练要点进行整理和归纳,以更好地开发和运用假动作,提高技、战术技能。     

太极拳运动对改善大学生体质的有效性研究

运用文献资料法、数理统计法及测量法,通过对安康学院部分本科在校生的太极拳运动干预前后的体质状况的调查得出,太极拳运动对大学生的身体素质的提高,身体形态的改善,肺功能的提高都有较好的干预作用。为有效开展高校太极拳运动和提高大学生体质现状提供科学理论依据。     

Application of functional principal component analysis in race walking: An emerging methodology

This study considered the problem of identifying and evaluating the factors of individual performance during race walking. In particular, the study explored the use of functional principal component analysis (f-PCA), a multivariate data analysis, for assessing and classifying the kinematics and kinetics of the knee joint in competitive race walkers. Seven race walkers of international and national level participated to the study. An optoelectronic system and a force platform were used to capture three-dimensional kinematics and kinetics of lower limbs during the race walking cycle. Functional principal component analysis was applied bilaterally to the sagittal knee angle and net moment data, because knee joint motion is fundamental to race walking technique. Scatterplots of principal component scores provided evidence of athletes' technical differences and asymmetries even when traditional analysis (mean ± s curves) was not effective. Principal components provided indications for race walkers' classification and identified potentially important technical differences between higher and lower skilled athletes. Therefore, f-PCA might represent a future aid for the fine analysis of sports movements, if consistently applied to performance monitoring.     

Foot and ankle joint movements of dancers and non-dancers: a comparative study

Ballerinas use their ankle joints more extremely and sustain injuries on the ankle joint more frequently than non-dancers. Therefore, the ankle movement of dancers is important and should be studied to prevent injuries. Measuring ankle joint range of motion (ROM) using radiographs could demonstrate the contribution to motion of each joint. The aim of this study was to analyse and compare ankle joint movements and the ratio of each joint’s contribution during movement between dancers and non-dancers, using radiographic images. Dancers have lower dorsiflexion (26.7 ± 6.2°), higher plantarflexion (74.3 ± 7.1°) and higher total (101.1 ± 10.8°) ROMs than non-dancers (33.9 ± 7.0°, 57.2 ± 6.8° and 91.1 ± 9.3°, respectively) (p < 0.05). Although the ROMs were different between the two groups, the ratios of each joint movement were similar between these two groups, in all movements. Regarding total movement, the movement ratio of the talocrural joint was almost 70% and other joints accounted for almost 30% of the movement role in both dancers and non-dancers. Therefore, the differences in ROM between dancers and non-dancers were not a result of a specific joint movement but of all the relevant joints’ collaborative movement.     

网球运动员专项认知水平的眼动特征

对20名省队网球专业运动员和30名体育院校网球专业大学生观看网球视频时的眼动特征进行研究发现：（1）专家运动员与新手运动员在观看网球视频时注视点平均注视时间、平均瞳孔直径、注视点个数都存在显著性差异。（2）专家运动员比新手运动员的视觉信息加工效率更高,视觉搜索策略更合理,主要原因是专家运动员与新手运动员在观看网球视频时知识组织方式、问题解决方式和认知加工方式的不同。