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慕容端 《中国体育(中英文版)》2014,(2):62-67
2003年,中国围棋职业棋手的名单中增加了一个新名字。他叫时越,生于1991年。2013年,中国围棋世界冠军的名单中增加了一位新成员。他叫时越,入段整整十年。 相似文献
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During backstroke, an optimum shoulder entry angle of 180° has been anecdotally suggested; however, this has yet to be investigated biomechanically. The aim of this study was to quantify shoulder entry angles for advanced and intermediate backstroke swimmers. Six advanced (season's best?<150?s) and six intermediate (season's best?>160?s) 200-m backstroke swimmers had markers applied to the medial humeral epicondyles and glenoid cavities. Following a familarization period, participants completed backstroke swimming trials (90?s each) in a swimming flume at 50%, 60%, 70%, and 80% of their season's best 200-m velocity. A camera positioned above the flume recorded frontal plane motion, which was digitized and analysed in Simi Motion Systems. The mean peak angle between the upper arm and the line of progression was established in ten strokes for each participant. The results showed backstroke shoulder entry angles for advanced swimmers (170°) were significantly closer to the suggested optimum 180° compared with those of intermediate swimmers (161°). The non-dominant arm displayed values closer to the optimum (171°), while swimming speed had no effect on backstroke shoulder entry angle. In conclusion, backstroke shoulder entry angle may help discriminate between advanced and intermediate backstroke swimmers and may be influenced by laterality dominance, being independent of swimming speed. 相似文献
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体育教学中的先决体育认知行为和运动情感特点 总被引：1，自引：0，他引：1
先决体育认知行为和先决运动情感影响一个人继续参与体育活动的态度和方式.从先决体育认知行为和先决运动情感特点的形成及其在运动态度形成过程中的作用等方面阐述了先决体育认知行为和运动情感特点对大学生持续参与体育活动的影响,进而提出了一个既能够满足大学生现实参与运动的需求又能适应进入社会长远参与运动的需求的高校体育教学模式. 相似文献
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倒立训练是跳水训练的基础。本文通过对倒立垂直入水的技术的原理分析和对倒立训练在跳水基础训练中作用的讨论,初步提出跳水陆上辅助练习倒立训练的一些步骤与方法。 相似文献
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加入WTO对中国体育用品产业的影响 总被引：8，自引：1，他引：7
体育用品产业是我国目前体育产业中重要的组成部分,其发展规模必然对我国体育产业总体经济规模产生重要的影响,特别是加入WTO后贸易规则的改变必然对我国体育用品产业产生巨大的影响。对加入WTO对我国体育用品产业的影响进行分析,必须结合与体育用品产业有关的贸易规则,才有事实依据和针对性。 相似文献
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Ross Sanders Barry Gibson 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(1):73-84
The purpose of this study was to compare the backward two and one half somersault dive in a tuck position (205C) performed by females (n = 22) and the backward two and one half somersault dive in a pike position (205B) performed by males (n = 27) and by females (n = 6) to determine changes required by females to successfully perform 205B. Video data of the dives performed at the 1999 FINA World Diving Cup were captured and digitised to obtain times and postures of the divers at specific events including maximum depression, takeoff, and entry. Estimates of mass‐normalised work done on the springboard were obtained from flight times. Males performed 31% more mass‐normalised work on the springboard to gain height than females. Based on the dive scores and the short time to extend and prepare for entry it was concluded that females are not yet able to perform 205B with the same quality as they perform 205C. Females performing backward dives need to adjust their techniques to allow increased work on the springboard to generate height and rotation. Also, faster contraction of the hip flexors may allow them to achieve the tightest position more quickly to complete rotations with more time to prepare for entry. 相似文献
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Sanders R Gibson B 《Sports biomechanics / International Society of Biomechanics in Sports》2003,2(1):73-84
The purpose of this study was to compare the backward two and one half somersault dive in a tuck position (205C) performed by females (n = 22) and the backward two and one half somersault dive in a pike position (205B) performed by males (n = 27) and by females (n = 6) to determine changes required by females to successfully perform 205B. Video data of the dives performed at the 1999 FINA World Diving Cup were captured and digitised to obtain times and postures of the divers at specific events including maximum depression, takeoff, and entry. Estimates of mass-normalised work done on the springboard were obtained from flight times. Males performed 31% more mass-normalised work on the springboard to gain height than females. Based on the dive scores and the short time to extend and prepare for entry it was concluded that females are not yet able to perform 205B with the same quality as they perform 205C. Females performing backward dives need to adjust their techniques to allow increased work on the springboard to generate height and rotation. Also, faster contraction of the hip flexors may allow them to achieve the tightest position more quickly to complete rotations with more time to prepare for entry. 相似文献
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武术套路动作进一步规范化是走向奥运的必然途径 总被引：6，自引：3，他引：3
曹琼瑜 《武汉体育学院学报》2002,36(5):32-33
中国武术如要走向世界，跻身于奥运会是对世界发展的一大贡献，而武术竞赛套路进一步规范化直接影响到比赛的公正性、竞争性。 相似文献
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体育赛事高质量发展是推动体育产业成为国民经济支柱性产业的根本保证。为实现体育赛事多元主体的有效参与,面对赛事社会运营主体准入门槛高,通过保护性开发、放开赛事无形资源、优化赛事审批服务、降低赛事社会运营主体准入资质等举措降低准入门槛;面对多元主体参与赛事路径狭窄,通过建立赛事社会运营主体的赛事公共服务标准、技术服务标准及社会大众参与机制,扩大赛事参与路径;面对赛事信息发布效率低,建立多渠道的体育赛事信息精准发布机制,增强信息发布的影响力;针对多元主体参与赛事积极性不足,则从规划、财政扶持、加强知识产权保护、营造赛事环境等政策扶持角度,切实维护多元主体的基本利益。 相似文献
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随着虚拟经营逐步进入到各个行业，体育场馆的经营也有着虚拟经营的必要性和可行性。体育场馆的虚拟经营，有利于进一步发挥自身优势，提高体育场馆的经济效益和服务质量，真正做到“有限场馆，无限空间”的经营目标。 相似文献
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跳水"压水花"技术运动生物力学研究 总被引：3，自引：0，他引：3
“压水花”是竞技跳水比赛中的关键技术，在训练中已经探索总结出不少“压水花”技术的训练方法，但在理论研究上，还远落后于实践。应用有关力学原理和流固耦合理论，对人、水碰撞过程进行简化和计算机模拟，并对“水花”形成的机理进行进一步的分析探讨，总结出不同形状固体(运动员入水时的手形)、在不同务件下撞击水面时“水花”形成的规律，根据计算机模拟结果和理论研究的成果，对“压水花”技术进行生物力学研究，提出“平掌撞水，压揉结合”的水花控制理论和方法。经对江苏省跳水队部分运动员中进行实验训练，取得了满意的结果。 相似文献