双语表征研究现状及其展望

本文首先对双语表征的研究背景进行了简要概括,之后从被试选取、实验材料选取及实验范式选取三个方面对目前双语表征研究现状进行了分析。提出今后双语表征研究应注重在大的社会文化背景之下进行宏观性研究,同时也应注重从双语表征的神经生理机制的微观角度进行更加深入的研究。     

标枪运动员闫泽坤和胡海龙最后用力下肢动作运动学参数比较分析

运用三维影像的方法分析陕西省两名优秀青年运动员闫泽坤和胡海龙的最后用力下肢动作技术,求得其不同投掷技术的运动学参数,通过三维运动分析系统分析在投掷标枪技术动作中各自特点和不足,为教练员训练提供理论依据和参考建议。     

增强学生体质健康的长效干预机制研究

文章运用专家访谈法、文献资料法,从社会、学校、家庭三个方面对影响学生体质健康水平下降的因素进行了分析,并针对存在的问题构建社会、学校、家庭三方相互联络的长效干预机制,研究认为：长效干预机制的建立对于从根本上扭转学生体质健康持续下滑的局面,促进学生体质的提高具有重要的现实意义。     

Effects of leg dominance on performance of ballet turns (pirouettes) by experienced and novice dancers

Turns (pirouettes) are an important movement in ballet and may be affected by “lateral bias”. This study investigated physiological differences exhibited by experienced and novice dancers, respectively, when performing pirouette with dominant and non-dominant leg supports, respectively. Thirteen novice and 13 experienced dancers performed turns on dominant or non-dominant legs. The maximum ankle plantarflexion, knee extension and hip extension were measured during the single-leg support phase. The inclination angle of rotation axis is the angle between instantaneous rotation axis and global vertical axis in the early single-leg support phase. Both groups exhibited a greater hip extension, knee extension, and ankle plantarflexion when performing a turn on the non-dominant leg. For experienced dancers, the inclination angle of rotation axis during the pre-swing phase was generally smaller for dominant leg support than non-dominant leg. However, no significant difference was found in inclination angle of rotation axis of novice dancers. For experienced dancers, an improved performance is obtained when using the dominant leg for support. By contrast, for novice dancers, the performance is independent of choice of support leg. The significant lateral bias in experienced dancers indicates the possible influence of training. That is, repetitive rehearsal on the preferred leg strengthens the impact of side dominance in experienced dancers.     

Effect of shoe wearing time and midsole hardness on ground reaction forces,ankle stability and perceived comfort in basketball landing

ABSTRACT

This study examined the effect of wearing time on comfort perception and landing biomechanics of basketball shoes with different midsole hardness. Fifteen basketball players performed drop landing and layup first step while wearing shoes of different wearing time (new, 2-, 4-, 6- and 8-week) and hardness (soft, medium and hard). Two-way ANOVA with repeated measures was performed on GRF, ankle kinematic and comfort perception variables. Increased wearing time was associated with poorer force attenuation and comfort perception during landing activities (p < 0.05). The new shoes had significantly smaller forefoot (2- and 4-week) and rearfoot peak GRF impacts (all time conditions) in drop landing and smaller rearfoot peak GRF impact (6- and 8-week) in layup; shoes with 4-week of wearing time had significantly better perceptions of forefoot cushioning, forefoot stability, rearfoot cushioning, rearfoot stability and overall comfort than the new shoes (p < 0.05). Compared with hard shoes, the soft shoes had better rearfoot cushioning but poorer forefoot cushioning (p < 0.05). Shoe hardness and wearing time would play an influential role in GRF and comfort perception, but not in ankle kinematics. Although shoe cushioning performance would decrease even after a short wearing period, the best comfort perception was found at 4-week wearing time.     

现代竞技武术长拳套路演练风格研究

文章运用文献资料法、专家访谈法和录像分析法,分析和归纳现代竞技武术长拳套路演练风格的特征,认为现代竞技武术长拳套路演练风格由动作性、节奏性、意境、综合性、主题性等技术要素构成。     

南通职业类高校武术课程研究

高等职业类院校开展武术课程在丰富完善体育课程、弘扬民族文化、促进和谐校园建设、增强学生体质等诸多方面具有重要的价值和积极的意义。文章在文献资料和实地调查的基础上,结合多年高职院校体育教学的经验,全面剖析了南通地区高职类院校武术课程开展存在的主要问题与不足,并提出相应的建议与对策,旨在促进南通地区高职类院校武术课程的健康发展。     

少儿武术教学与训练策略研究

文章根据少儿生理、心理特征以及武术课的教学与训练特点,并结合多年教学经验,针对如何改进提高少儿武术教学与训练方法进行相关研究,旨在为少儿武术教学与训练水平的提高和培养少儿武德精神、磨练意志品质等提供一定的参考。     

急倾斜煤层火灾防治措施综述

煤炭自燃发火是矿井的一大灾害,它不仅影响生产,使国家资源遭到损失,还会因回采率低使矿井般务年限缩短,降低矿井投资效益.更为严重的是一旦发生火灾,如果处理不妥,很有可能诱发重大瓦斯、煤尘爆炸事故,使矿井蒙受损失,职工的生命安遭受威胁.因此防治煤炭自燃发火就成为煤矿生产中的重要环节.安徽国投新集有限公司新集三矿为急倾斜煤层开采矿井,特殊的煤层条件决定了矿井火灾的特殊性,本文主要介绍了国投新集能源股份有限公司新集三矿多年来针对急倾斜煤层火灾防治措施及经验.     

群众体育发展模式的结构创新

摘要：群众体育是我国体育事业的重要组成部分，经多年发展，逐步形成了“政府主导、部门协同、全社会共同参与”的发展模式。随着市场经济改革进一步深化，我国社会主要矛盾转化为人民日益增长的美好生活需要和不平衡不充分的发展之间的矛盾，现有群众体育发展模式已无法满足人民对健康生活的追求，迫切需要在国家治理体系层面上对其进行改革完善。通过文献资料分析法，对群众体育发展模式的结构进行剖析，对未能明确的主要问题进行梳理，发现现有模式存在主体不明、承担者模糊、发展方式单一，体育社会组织参与不够等问题。由此，提出群众体育发展模式的新思路及结构模型，明确政府、社会组织、市场在群众体育发展模式当中各自的作用、发展主体及性质。群众体育“政府引导、社会参与、公民主体、市场推动”的发展新模式将成为新时代体育事业发展的源动力。暨人民中心和公民主体地位充分体现，政府引导方式和责权范围明晰，体育社会组织参与主办承办者身份明确，社会自我组织有效管理，市场参与度高，体育服务供给丰富。以期对我国群众体育的长效发展提供建议及切实有效的发展路径，深入落实全民健身战略，提高人民健康水平。