共查询到19条相似文献，搜索用时 62 毫秒
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在棒球比赛中,投手的作用是无庸质疑的,一场比赛的胜利往往都离不开投手,但是投手队员如何才能发挥自身作用展现投手的价值,这就需要在投手训练中不断探索创新和研究.本文针对四川棒球队投手的比赛发挥通过文献资料法,录像观察法、数据统计法、对比分析法展开讨论和研究.研究认为四川棒球队投手在训练中应加强防守触击球防守技术训练,希望可以为四川棒球队投手的训练尽一定的数据支持. 相似文献
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棒球投手投球技术生物力学分析 总被引：1，自引：0，他引：1
以2004年全国棒球联赛上场一线投手为研究对象,选取两名外援及三名优秀国手为优秀组,上海队投手的五名队员为一级组.用JVC L9800高速摄像机选取100格/s的拍摄速度对投手前三局投球动作进行平面定机拍摄.用SBCAS2图像解析系统对投手投快球动作进行动作技术分析.旨在探讨我国棒球投手投球技术特点,为提高投手的投球技能提供参考. 相似文献
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2008年全国女子垒球锦标赛技术统计与分析 总被引：1，自引：0，他引：1
运用统计法对获得2008年全国女子垒球锦标赛前8名队伍的投手、防守和击球技术进行对比研究,结果表明：近几年我国女子垒球击球技术水平及防守能力逐步提高,各省市队伍水平差距明显缩小;投手投球能力虽有较大提高,但有特点的尖子投手不多。 相似文献
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为进一步明确影响棒球投手投球速度的关键因素,通过中国知网、Web of Science和PubMed等平台以棒球投手、投球速度、运动生物力学和鞭打动作等为关键词,检索并整理归纳20世纪90年代至今的相关文献资料。通过对比国内外优秀棒球投手投球速度和专项技术能力,发现投球时投掷臂肩关节外旋角度、肩关节水平外展角度、肘关节角度、躯干前倾幅度、前腿膝关节角度等运动学指标,投掷臂各环节受力峰值、前腿受到的最大地面反作用力等动力学指标均对投球速度起关键性影响作用。教练员和棒球投手可通过改善上下肢关节角度和角速度等指标参数的大小、增强肌肉力量和柔韧性等手段,完善投手投球技术动作,提高投球速度。 相似文献
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棒球投手技战术水平的高低对比赛的胜负能起到80%左右的作用,它是全队的灵魂,也是衡量一支棒球队强弱的主要标志.鉴于投手在球队中的重要作用,近年来,许多国外学者运用录像解析、雷达测速等研究方法,对棒球投手的技术动作进行了一系列的诊断和定量分析,揭示其运动学和动力学的特征.但是目前,我国在这一领域的研究还不是很多.投手投球的方法主要有上手投法、斜上投法、横投法、下手投法. 相似文献
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投手犯规是棒球比赛中出现最为频繁的。正确的对其做出判罚是执行规则的要求。然而投手犯规发生的情形会随着比赛的进行不断地变化,如果正确的执行投手犯规的判罚时常成为裁判们困扰。投手犯规是对垒上跑垒员进行的取巧行为,当它被做出时,这行为本身是不为规则所允许的,即形成比赛中断的死球局面,但是为了维护进攻方可能的进攻机会而将投手犯规设定为推延死球局面。 相似文献
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棒球运动是以击球跑垒、跑垒得分的进攻行为与投球、接传球的防守行为相对抗为特点的运动项目.在棒球比赛中,投手的球投得好,就能控制击球员的击球,全面控制对方的进攻.因此投手投球的技术战术和心理战术起着十分关键的作用,决定了全局的比赛.通过结合近年来国内、外学者对棒球投手的运动生物力学研究成果,探讨投手投球技术战术及技术战术... 相似文献
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Jeff Wight James Richards Susan Hall 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(1):67-84
Efficient, sequential timing is essential for upper level pitching. Interestingly, pitchers vary considerably in timing related elements of pitching style including pelvis rotation, arm cocking, stride leg behaviour, and pitch delivery time. The purpose of this study was to determine whether relationships exist among these elements by examining the overall style of pitchers exhibiting different pelvis rotation patterns. Pitching styles were defined by pelvis orientation at the instant of stride foot contact. Pitchers demonstrating a pelvis orientation greater than 30° were designated as ‘early rotators’, while pitchers demonstrating a pelvis orientation less than 30° were designated as ‘late rotators’. Kinematic and temporal differences were associated with the two styles. During the arm cocking phase, early rotators showed significantly greater shoulder external rotation at the instant of stride foot contact, earlier occurrence of maximum pelvis rotation angular velocity, and shorter time taken to complete the phase. However, by the instant of maximum shoulder external rotation, early and late rotators appeared remarkably similar as no significant difference occurred in pelvis and arm orientations. Therefore, it appears that early and late rotators used different methods to achieve similar results, including throwing velocity. Significant differences in throwing arm kinetics were also found for 10 of the 11 measures in the study. As the pelvis assumed a more open position at stride foot contact, maximum kinetic values were found to both decrease in magnitude and occur at an earlier time within the pitch. 相似文献
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Rafael Escamilla Glen Fleisig Steven Barrentine James Andrews Claude Moorman III 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):213-228
The purpose of this study was to quantify and compare kinematic, temporal, and kinetic characteristics of American and Korean professional pitchers in order to investigate differences in pitching mechanics, performance, and injury risks among two different cultures and populations of baseball pitchers. Eleven American and eight Korean healthy professional baseball pitchers threw multiple fastball pitches off an indoor throwing mound positioned at regulation distance from home plate. A Motion Analysis three‐dimensional automatic digitizing system was used to collect 200 Hz video data from four electronically synchronized cameras. Twenty kinematic, six temporal, and 11 kinetic variables were analyzed at lead foot contact, during the arm cocking and arm acceleration phases, at ball release, and during the arm deceleration phase. A radar gun was used to quantify ball velocity. At lead foot contact, the American pitchers had significantly greater horizontal abduction of the throwing shoulder, while Korean pitchers exhibited significantly greater abduction and external rotation of the throwing shoulder. During arm cocking, the American pitchers displayed significantly greater maximum shoulder external rotation and maximum pelvis angular velocity. At the instant of ball release, the American pitchers had significantly greater forward trunk tilt and ball velocity and significantly less knee flexion, which help explain why the American pitchers had 10% greater ball velocity compared to the Korean pitchers. The American pitchers had significantly greater maximum shoulder internal rotation torque and maximum elbow varus torque during arm cocking, significantly greater elbow flexion torque during arm acceleration, and significantly greater shoulder and elbow proximal forces during arm deceleration. While greater shoulder and elbow forces and torques generated in the American pitchers helped generate greater ball velocity for the American group, these greater kinetics may predispose this group to a higher risk of shoulder and elbow injuries. 相似文献
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This study explored the extent and type of men and women's relationship to baseball at the end of the 20th century. Unobtrusive observations of the behaviors and comments of visitors to the National Baseball Hall of Fame and Museum in Cooperstown, New York, were undertaken during a 7-day period to explore how men and women related to baseball. The "doing of gender" by visitors was observed in several areas: (a) historical and personal connection to baseball, (b) ability to experience a bond with others through baseball, and (c) approach to touring the Hall of Fame and Museum. Women generally were seen as outsiders and peripheral to baseball and often connected to the sport in a manner different from men. 相似文献
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National identity is one of the most contentious issues in Taiwan. This paper examines the relationship between the staging of the 2001 Baseball World Cup (BWC) and wider issues such as that of Taiwanese nationalism and broader sociopolitical values in Taiwan. It attempts to explain the impact on Taiwanese nationalism of hosting such a sports mega-event. The paper argues that baseball in general, and the 2001 BWC in particular, was a political vehicle utilised by the ‘new’ government to promote social integration/national identity; and it evaluates the responses of the Taiwanese to baseball used for this purpose. Taiwan et la Coupe du Monde de baseball de 2001 : l'impact national d'un événement sportif mondial L'identité nationale est l'un des questions les plus litigieuses à Taïwan. Cet article examine les relations entre l'accueil de la Coupe du monde de base-ball 2001 (BWC) et d'autres aspects plus généraux comme ceux du nationalisme taïwanais et plus largement des valeurs sociopolitiques à Taïwan. Il tente d'expliquer l'impact de l'accueil d'un tel méga-événement sportif sur le nationalisme taïwanais; L'article soutient que le base-ball en général et la coupe du monde de 2001 en particulier furent un véhicule politique utilisé par ‘le nouveau’ gouvernement pour promouvoir l'intégration sociale et l'identité nationale et il évalue les réponses des Taïwanais dans le base-ball à cette fin. Taiwan y el Mundial de Béisbol de 2001: impacto nacional de un acontecimiento deportivo mundial Una de las cuestiones más controvertidas en Taiwan es la de la identidad nacional. Este artículo examina las relaciones entre la celebración del Mundial de Béisbol de 2001 y otros aspectos más generales como el nacionalismo taiwanés y los valores sociopolíticos en Taiwán. Intenta explicar el impacto que tuvo sobre el nacionalismo taiwanés el hecho de albergar un acontecimiento deportivo de este nivel. El artículo postula que el béisbol en general, y el Mundial de 2001 en concreto, fueron un instrumento político utilizado por el “nuevo” gobierno para promover la integración social y la identidad nacional, y valora las respuestas de los taiwaneses al uso del béisbol con este propósito. Taiwan und die Baseball Weltmeisterschaft 2001: Der nationale Einfluss einer Weltsportveranstaltung Die nationale Identität ist eine der umstrittensten Angelegenheiten in Taiwan. Diese Arbeit untersucht die Beziehung zwischen der Ausrichtung der Baseball Weltmeisterschaft (BWC) im Jahre 2001 und weitreichenderen Problemfeldern wie dem des Nationalismus und allgemeineren soziopolitischen Werten in Taiwan. Es wird versucht, den Einfluss eines derartigen sportlichen Großereignisses auf den taiwanesischen Nationalismus zu erklären. Die Abhandlung zeigt, dass Baseball allgemein, besonders aber die Weltmeisterschaft 2001 als politisches Werkzeug von der ?neuen” Regierung benutzt wurde, um die soziale Integration/nationale Identitätsstiftung voranzutreiben. Darüberhinaus werden die Reaktionen der Taiwanesen auf den zu diesem Zweck verwendeten Baseballsport untersucht. 相似文献
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梁思凡 《体育科技文献通报》2020,(4):81-81,109
通过对棒球项目的了解深入,本文从项目比赛特点、技术动作及能量代谢分析棒球项目力量训练方向,探讨棒球力量训练的内容和方法,以及中国棒球力量训练目前的不足。 相似文献
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通过对中国棒球队近10年来的重大洲际比赛进行追踪和分析,并与世界一流强队,亚洲三强(日本、中国台北、韩国)作对比研究,发现90年代初期我国成年棒球仍落后于亚洲三强的主要原因是击球技战术落后,多垒打率低。以技促击,以“多垒打”为主的击球技术,是我国成年棒球冲出亚洲的突破口。 相似文献
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本文采取现场统计与借阅棒球比赛记录表的办法,对我市少年棒球队参加第七届泛太平洋国际少年软式棒球锦标赛的比赛情况进行分析,以期找出我市少年棒球队存在的问题,为教练员、运动员在以后的训练中提供依据,为今后的训练工作找出方向。 相似文献