影响我国男子沙滩排球强队比赛得分率的主要因素   总被引：2，自引：0，他引：2  

周映春  冉强辉 《上海体育学院学报》1998,(3)

采用现场统计与相关分析等研究方法,对影响我国男子沙滩排球强队比赛得分率的主要因素进行探析。结果显示,对方送分、轻扣、发球、强攻等手段,是影响比赛得分率的主要因素。  相似文献   

室内射击场收弹设备的比较研究     

ZHAO Jing-hua 《陕西国防工业职业技术学院学报》2008,(1)

随着全国公安系统大练兵活动的开展,室内射击场的建设和改造也进入了一个迅速发展的时期。研究训练设备,保障训练工作的安全开展和参训公安民警的身体健康刻不容缓。本文就目前多种形式的室内射击场的收弹设备,在安全、环保、制造成本、维护成本、收弹效果等方面进行了全面的研究比较,以此为有关单位在设备选择上提供相关参考。  相似文献   

灰色系统理论视角下优秀女排主攻运动员扣球高度的若干影响因素分析     

杨献南  安琪 《河北体育学院学报》2012,26(5):55-58

运用文献资料及灰色关联分析等方法,以灰色系统理论为依据建立灰色关联模型,对2010年世界女子排球锦标赛前十名球队主攻位置运动员扣球高度进行灰色关联分析,结果显示,世界优秀女子排球主攻位置运动员扣球高度与其身高的灰色关联程度最大,曲线拟合程度较好;SH值（即弹跳能力）次之;体重与克托莱指数居第三、四位,年龄与扣球高度的灰色关联程度最小。  相似文献   

Dominant vs. non-dominant shoulder morphology in volleyball players and associations with shoulder pain and spike speed     

Dimitrios Challoumas  Andreas Artemiou  Georgios Dimitrakakis 《Journal of sports sciences》2017,35(1):65-73

The aims of our study were to compare the dominant (DOM) and non-dominant (NDOM) shoulders of high-level volleyball athletes and identify possible associations of shoulder adaptations with spike speed (SS) and shoulder pathology. A total of 22 male volleyball players from two teams participating in the first division of the Cypriot championship underwent clinical shoulder tests and simple measurements around their shoulder girdle joints bilaterally. SS was measured with the use of a sports speed radar. Compared with the NDOM side, the DOM scapula was more lateralised, the DOM dorsal capsule demonstrated greater laxity, the DOM dorsal muscles stretching ability was compromised, and the DOM pectoralis muscle was more lengthened. Players with present or past DOM shoulder pain demonstrated greater laxity in their DOM dorsal capsule, tightening of their DOM inferior capsule, and lower SS compared with those without shoulder pain. Dorsal capsule measurements bilaterally were significant predictors of SS. None of the shoulder measurements was associated with team roles or infraspinatus atrophy, while scapular lateralisation was more pronounced with increasing years of experience, and scapular antetilting was greater with increasing age. Adaptations of the DOM shoulder may be linked to pathology and performance. We describe simple shoulder measurements that may have the potential to predict chronic shoulder injury and become part of injury prevention programmes. Detailed biomechanical and large prospective studies are warranted to assess the validity of our findings and reach more definitive conclusions.  相似文献   

Kinematic differences between successful and faulty spikes in young volleyball players     

Javad Sarvestan  Zdeněk Svoboda  Petr Linduška 《Journal of sports sciences》2020,38(20):2314-2320

ABSTRACT

This study was designated to investigate the kinematical differences between successful and faulty spikes, in order to identify the best strategies leading to better spike performance. Simulating a real-game condition, 13 elite youth attackers performed 6 spikes in the presence of 2 blocks. The kinematic variables of the spike performances were recorded using 6 optoelectronic cameras (Vicon Motion systems, Oxford, UK). The paired sample t-test was used to compare the kinematic variables recorded during the delivery of successful and faulty spikes. Among the successful trials, both the angular velocities of the knees (≈12.4%) and hips (≈13.3%), and the vertical velocity of the centre of mass at take-off (≈6.5%) and arm swing (≈8.2%) were considerably higher during the plant phase. Consequently, the jump (≈4.3%) and spike (≈1.5%) heights, as well as the wrist velocity (≈5.5%), were significantly higher during the jump phase of successful spikes. In successful spike performances, the attackers adopted higher hip and knee angular velocities, combined with efficient arm swings, to produce higher take-off velocities and reach higher jump heights. This approach provides them with the better position regarding the ball and the blockers to find the best path and hit the ball with higher arm velocities.  相似文献   

合理击球点对排球扣球教学效果影响的理论研究     

唐金根  许俊  江超 《体育科技文献通报》2011,19(8):66-67

扣球是排球运动中关键的技术之一,而空中击球更是扣球的重要环节,在教学中常有不少初学者由于击球点不高,影响整个扣球的效果和学习的兴趣,为不断改进和提高教学质量,在众多研究成果评说的基础之上,对扣球技术空中击球击球点环节进行深入的理论分析,并对击球点与过网点关系进行探讨。  相似文献   

对第29届奥运会中国男排与对手扣球得、失分的比较分析     

高宝龙 《辽宁体育科技》2009,31(6):68-70

对第29届奥运会中国男排同6个对手的比赛进行录像,并对中国男排与对手扣球得、失分进行比较和分析,对如何提高中国男排扣球得分能力,提出了一些建议,仅供中国男排以后训练参考。  相似文献   

辽宁、天津女排主力队员单脚起跳扣球技术的对比研究   总被引：1，自引：0，他引：1  

郑红波  耿福权 《沈阳体育学院学报》2005,24(2):90-92

运用DLT等研究方法,对天津、辽宁女排主力队员单脚起跳扣球技术进行研究。结果表明:单脚起跳扣球在助跑阶段具有第一步步幅较小,最后一步步幅较大的特点;蹬伸时的左膝角数值偏小;挥臂击球时右肘在161°左右弯曲时,更能充分发挥前臂的加速挥击作用;扣球时右肩、右肘、右腕、右指掌的速度是依次递增的。力图为建立更完善的单脚起跳扣球技术模型提供参考依据。  相似文献   

女排四号位强攻个人战术运用的新思考     

徐建德  黎禾 《浙江体育科学》2005,27(5):57-59,63

利用浙江女排在两个赛季的临场技术统计数据,对女排四号位强攻个人战术运用的设想与效果进行了有深度的分析,并就强攻时的区域变化、时空变化和手法变化,丰富个人战术运用能力的训练,提出了新的设想.  相似文献   

对运用前臂负重法提高排球运动员挥臂速度的研究     

曹庆雷  葛春林 《北京体育大学学报》2005,28(2):274-275

采用实验、高速摄影等方法,从专家调查、实验验证、理论分析3个方面对前臂负重法进行了研究,认为前臂负重法符合素质练习要尽量与专项技术动作特征相一致的运动训练学要求;对提高排球运动员的挥臂速度效果显著,且可以节约训练时间,提高训练效率.  相似文献