体操运动员动作“登陆”时心理能力探析     

蔡克茹 《天津体育学院学报》1996,11(4):96-99

采用问卷调查、专家评价的方法，对我国体操运动员动作登陆的竞技心理能力水平进行了讨论，分析了运动员动作登陆时心理能力的表现及其对动作登陆的影响，提出了动作登陆前应具备的条件和建议  相似文献   

全国第八届冬运会自由式滑雪空中技巧比赛着陆稳定性浅析     

王贺一  郭亦农 《沈阳体育学院学报》1996,(3)

通过对全国第八届冬运会自由式滑雪空中技巧参赛的男女运动员着陆的得分、成功率、稳定性的统计和分析，说明了着陆技术的重要性．在不断提高动作难度的同时应加强着陆稳定性的训练。  相似文献   

单侧功能性踝关节不稳者单腿下落过程的生物力学研究     

张阳  袁金风  张秋霞  程龙 《北京体育大学学报》2014,37(8):87-91

目的:研究功能性踝关节不稳者患侧与健侧单腿下落生物力学特征的差异性。方法:采用Vicon红外高速摄像系统和Kistler三维测力台对15名单侧功能性踝关节不稳者分别进行患侧与健侧40 cm高的单腿下落实验测试,采集下落过程中触地侧下肢的地面反作用力及运动学数据,用配对t检验分析两侧间的差异性,检验水准选α=0.05。结果:在触地前100 ms时及触地时膝踝的瞬时角度、落地稳定时间、落地稳定末的踝关节角度、膝前馈的角度变化量以及内外侧方向GRF峰值对应时间的比较中,两侧间差异存在统计学意义。结论:单侧FAI者患侧单腿下落触地后各方向地面反作用力峰值相对比健侧单腿下落时小,各方向地面反作用力峰值的出现时间相对晚于健侧;同时还发现单侧FAI者在下落过程中可能存在前馈神经肌肉控制的改变。  相似文献   

空客330高原机场着陆技术分析   总被引：1，自引：0，他引：1  

张毅 《成都航空职业技术学院学报》2010,26(2):51-52,57

本文就高原飞行着陆姿态、高原飞行着陆距离和拉平技术进行分析,以有效解决高原飞行中遇到的着陆姿态偏大和着陆平飘距离偏长的问题。  相似文献   

登陆作战对单兵体能的要求     

叶德初  刘卫华 《军事体育进修学院学报》2000,19(2):38-40

为贯彻军委关于加强军事斗争准备的指示,本从登陆作战的军事地理环境以及登陆作战的特点着手,阐述了实施登陆作战对单兵体能的要求,希望对加强我军登陆部队体能训练,增强登陆作战单兵的体能素质,提高战斗力有所帮助：  相似文献   

1999年广西少年田径跳远比赛技术分析     

肖建咏 《体育科技》2000,(4):28-30

通过对 1999年全区少年田径锦标赛跳远比赛的观摩和测试 ,分析我区少年跳远水平下降的原因 ,与同行们共同探讨 ,以尽快提高我区少年运动员的跳远技术水平  相似文献   

第34届世界体操锦标赛男子跳马的技术统计与分析   总被引：2，自引：1，他引：1  

许铭  何幸光  陈定涛 《广州体育学院学报》1999,(4)

对第 3 4届体操锦标赛男子跳马项目进行了技术统计分析 ,旨在为今后我国男子跳马项目的训练与竞赛工作提供参考依据。结果表明 :动作难度一般 ,起评分较低 ,动作完成质量不高 ,落地稳定性差 ,最后得分偏低  相似文献   

基层电大开放教育接轨农村、服务农民的和谐理念     

严晓琴  吴国富 《南京广播电视大学学报》2006,(1):25-28

致力于中国农民素质教育是电大系统实施网络教育必须担负的历史使命,基层电大接轨农村、服务农民是开放教育可持续发展的必然趋势。当今农村地区发展的不平衡现状和农民个体活动呈现的独立性、选择性、多变性等形态,决定了各地基层电大在向农村和农民实施开放教育的过程中,必须于教育观念、教育技术以及教育中远期目标上紧紧把持和谐的理念。  相似文献   

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

Wing-Kai Lam  Hui Liu  Guo-Qing Wu  Zuo-Liang Liu 《Journal of sports sciences》2013,31(20):2347-2355

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.  相似文献   

Statistical modelling of knee valgus during a continuous jump test     

Y. Nagano  M. Sakagami  H. Ida  M. Akai  T. Fukubayashi 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(3):342-350

Landing with the knee in a valgus position is recognized as a risk factor for anterior cruciate ligament (ACL) injury. Using linear and non-linear regression analyses, the purpose of this study was to examine the correlation between two-dimensional (2D) knee valgus and three-dimensional (3D) knee kinematics measured during a jump landing task. Twenty-eight female collegiate athletes participated. All participants were required to perform a continuous jump test. The average maximum angles of abduction and internal tibial rotation during landing were measured using the Point Cluster Technique. Average peak knee valgus angle was measured using a 2D approach. Linear and non-linear regression analyses between 2D valgus and 3D knee abduction, and between 2D valgus and 3D internal tibial rotation, were performed. The R ² value between 2D valgus and 3D knee abduction was significantly different from zero and had a moderate correlation for all models, whereas the R ² value between 2D valgus and 3D internal tibial rotation was not significantly different from zero. The 2D approach could be used to screen a specific group of individuals for risk of ACL injury; however, using frontal plane 2D analysis of valgus motion to evaluate internal tibial rotation is not advised.  相似文献