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德·卡哈纳莫库 曾在1912、1918、1920年三破男子100米自由泳世界纪录,并连续两届奥运会获得该项目冠军。退役后,即投身于好莱坞影艺界,成功出演了多部故事影片,在当时电影观众中留有一定影响。 约翰·韦斯摩勒 开创了现代爬泳技术的新纪元。在游进中,他的身体姿势、腿、臂动作和呼吸配合（两臂轮流划水各一次、两腿打水六 相似文献
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自由泳是最快的竞技游泳姿势。要提高自由泳的速度,运动员必须保持良好的技术平衡,并拥有强有力的划水和打水技术。本文主要分析从运动员的身体位置、空中移臂和水下划水技术在少儿自由泳技术训练中的应用。 相似文献
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采用录像解析法、观察法等,对庞佳颖备战第29届奥运会自由泳技术进行诊断.结果显示:庞佳颖自由泳途中游技术中换气动作细节影响其身体位置与划水效果;出发的入水环节技术以及在出发、转身后的潜水海豚式打腿技术是制约其竞技水平的关键因素.提出对策:优化影响途中游身体位置、身体姿势流线型呼吸时的头部动作,注重发挥和利用核心力量,提高划水实效;实现出发潜水海豚式打腿技术突破,提高出发和转身阶段成绩,形成制胜技术特长. 相似文献
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1、引言澳大利亚自由泳运动员多采用前交叉配合,通过内旋转上臂和屈肘来实现移臂高肘动作。中国自由泳运动员多采用中交叉配合,在肘内收之前,前臂和手几乎与水平面垂直,水下采用的是屈肘划水动作。通过对澳大利亚和中国自由泳技术对比分析,找出存在差异,借鉴澳大利亚自由泳技术,去改进和完善我国自由泳运动员技术,有助于缩短与他们的距离。2、研究对象与方法2.1研究对象索普刘禹2.2研究方法2.2.1文献资料法2.2.2对比法3、研究结果与分析3.1澳中著名自由泳运动员技术特点对比为什么澳大利亚男子游泳运动员能够在200米到1500米自由泳项目中取… 相似文献
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笔者对我院体育系男生进行自由泳完整动作电化教学法与常规教学法的比较性实验。研究结果表明：自由泳完整动作电化教学法明显优于常规教学法,这一种主动性的教学过程,可以节省教学时数,减少教师重复工作,解决个体间技术问题。 相似文献
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采用文献资料法、录像分析法、专家访谈法和数理统计法,对广东省男子短距离自由泳运动员的技术动作进行研究,以期为提高广东省男子短距离自由泳运动员的技术水平提供参考. 相似文献
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文章通过文献资料法、录像拍摄法以及专家访谈法,针对二级游泳运动员爬泳腿部技术动作进行相应的研究。通过调查得出以下结论 ：在腿部技术的训练中,男运动员最容易出错的是小腿打水和屈髋打水技术;女运动员最容易出错的是小腿打水和直腿打水技术,与男运动员存在一定的差异。要想进一步提升游泳运动员的训练效果,首先需要重视爬泳的腿部技术。很多因素都会影响运动员的训练效果,比如比赛的频率、教学方式等等,所以今后需要从不同方面加以重视。 相似文献
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本文根据儿童期的特点,在沈阳市和平区游泳队96年暑期40天的训练中,对学习掌握自由泳的技术动作进行了尝试,收到了一定的效果,平均成绩提高6．45m,证明学习正确的自由泳技术动作是掌握和提高自由泳技术水平的关键。 相似文献
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Abstract In freestyle swimming the arm action is routinely quantified by stroke count and rate, yet no method is currently available for quantifying kick. In this study, we assessed the validity and reliability of inertial sensor technology (gyroscope) to assess kick count and rate. Twelve Paralympic swimmers completed a 100-m freestyle-swimming time-trial and freestyle kicking-only time-trial three times each in a season. An algorithm was developed to detect the up and down beat of individual kicks from the gyroscope trace. For comparative purposes, underwater video analysis provided the criterion measure. The standard error of the estimate (validity) for kick count, expressed as a coefficient of variation, was 5.9% (90% confidence interval 5.5 to 6.4) for swimming, and 0.6% (0.5 to 0.6) for kicking-only trials. The mean bias for kick count was ?1.7% (?2.4 to ?1.1) for swimming, and ?0.1% (?0.2 to ?0.1) for kicking-only trials. Correlations between the sensor and video for kick count were 0.96 (0.95 to 0.97) for swimming, and 1.00 (1.00 to 1.00) for kicking-only trials. The typical error of the measurement (reliability) between trials was approximately 4% for kick count and rate. The inertial sensors and associated software used generated sufficient validity and reliability estimates to quantify moderate to large changes in kick count and rate in freestyle swimming. 相似文献
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Silvia Fantozzi Andrea Giovanardi Fabrício Anício Magalhães Rocco Di Michele Matteo Cortesi Giorgio Gatta 《Journal of sports sciences》2016,34(11):1073-1080
The analysis of the joint kinematics during swimming plays a fundamental role both in sports conditioning and in clinical contexts. Contrary to the traditional video analysis, wearable inertial-magnetic measurements units (IMMUs) allow to analyse both the underwater and aerial phases of the swimming stroke over the whole length of the swimming pool. Furthermore, the rapid calibration and short data processing required by IMMUs provide coaches and athletes with an immediate feedback on swimming kinematics during training. This study aimed to develop a protocol to assess the three-dimensional kinematics of the upper limbs during swimming using IMMUs. Kinematics were evaluated during simulated dry-land swimming trials performed in the laboratory by eight swimmers. A stereo-photogrammetric system was used as the gold standard. The results showed high coefficient of multiple correlation (CMC) values, with median (first–third quartile) of 0.97 (0.93–0.95) and 0.99 (0.97–0.99) for simulated front-crawl and breaststroke, respectively. Furthermore, the joint angles were estimated with an accuracy increasing from distal to proximal joints, with wrist indices showing median CMC values always higher than 0.90. The present findings represent an important step towards the practical use of technology based on IMMUs for the kinematic analysis of swimming in applied contexts. 相似文献
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Propulsion, one of the most important factors in front crawl swimming performance, is generated from both the upper and lower limbs, yet little is known about the mechanisms of propulsion from the alternating movements of the lower limbs in the flutter kick (FK). The purpose of this systematic review was to review the literature relating to the mechanisms of propulsion from FK in front crawl. There was limited information about the mechanisms of propulsion in FK. Since movements of the lower limbs are similar between FK and the dolphin kick (DK), mechanisms of propulsion from DK were reviewed to better understand propulsion from FK. Recent evidence suggests that propulsion in DK is generated in conjunction with formation and shedding of vortices. Similar vortex structures have been observed in FK. Visualisation and simulation techniques, such as particle image velocimetry (PIV) and computational fluid dynamics (CFD), are non-invasive tools that can effectively model water flow without impacting swimming technique. These technologies allow researchers to estimate the acceleration of water and, consequently, the propulsive reaction forces acting on the swimmer. Future research should use these technologies to investigate propulsion from FK. 相似文献
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The main objective of this research was to develop a markerless optical motion capture system that can be used for daily use in swimming training. The butterfly stroke was targeted since it is considered bilaterally symmetric in motion. The system consisted of a segmentation process to obtain the participant’s silhouettes and a matching process to estimate the pose of the participant. A variable thresholding method was used to extract the silhouettes to solve non-uniform illumination in the recorded swimming video. Prior to the matching process, the human body was modeled as a series of nine segments to help the matching process. The model was then mapped so that it aligned with the silhouettes, which were investigated by similarity of intensity value. To minimize the degree of freedom in image matching, the available joint motion in the swimming human simulation model was used as a priori information for kinematics data of the swimming motion. As a result, the rotation angle’s correlation coefficients between the references and result of the matching process were around 0.95 for trunk, thigh, shank, upper arm, forearm, hand and 0.78 for head, hip and foot. The rotation angle and the velocity of the center of mass were put into the swimming human simulation model for a dynamics analysis. The simulation results show that the velocity obtained in the experiment corresponded to the fluid force exerted on the lower and upper limbs. Consequently, the proposed system of obtaining the joint motion of the butterfly stroke is suitable for daily training and coaching. 相似文献
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微格教学法作为一种新的培训教学技能的方法不断的运用于各种技能的培训当中.在游泳的教学当中,教师采用微格教学法进行动作技能的教学,有利于学生更充分的运用感觉器官和运动器官建立一个完整的游泳技术动作表象;学生从中学习提高了对游泳技术动作的分析、观察、判断和评价的能力,而且能够进一步的调动学生主动参与的积极性,提高学习兴趣,效果明显优于传统教学方法.是一种值得推广的教学方法. 相似文献
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通过录像分析法对王皓、张继科接发球技术的运用及得失分进行统计分析。研究结果表明：1）反手拧拉技术的创新,接发球直接得分率明显提高。2）王皓、张继科使用反手拧拉得分率高于失分率。3）王皓、张继科使用劈、摆技术得分率低于失分率。4）王皓、张继科接发球在比赛接发球轮次总得分率高于失分率。 相似文献
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不同频率全身振动刺激对运动员下肢肌群力量训练效果的对比研究 总被引：2，自引：0，他引：2
采用PHYSIO PLATE振动训练台,对北京优秀垒球、女子游泳及女子跳水运动员进行同振幅下不同频率振动刺激力量训练,并采用MERAC等速肌力测试系统,对实验前后以及实验中运动员下肢肌力变化情况进行对比研究。研究发现,抗负荷力量训练附加振动刺激可以有效地提高力量训练的效果,能够以相对较小的负荷有效地提高肌肉的最大力量、爆发力以及肌肉耐力;同振幅下,次高频(35Hz～50Hz)振动刺激对肌肉最大力量、快速力量、爆发力以及肌肉耐力的训练效果显著高于中低频(25Hz～35Hz)振动刺激。 相似文献
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随着罗马游泳世锦赛的圆满收官,游泳池的疯狂和世界纪录的打破也暂告一个段落,但留给我们的思索却远远没有结束。通过文献资料法、逻辑分析法和归纳总结法,从材料科学与新型泳衣的革新、流体力学与游泳池、生物科学与运动员体能、游泳技术创新四个方面分析科学技术对游泳运动的促进和影响。 相似文献
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文章通过查找相关文献资料,记录比赛录像数据,运用数理统计法、对比分析等方法对中国散打运动员王洪祥和日本空手道运动员冈本铁也在2010年武林风中日挑战赛上的散打攻防综合技术、单个技术、组合技术动作进行比较分析。结果表明：王洪祥综合技术运用成功率较高,穷追猛打,攻防兼备,而冈本铁也则在防守方面非常严密,抗打硬拼;王洪祥单项技术以右手后冲拳、左高鞭腿为主,冈本铁也则以防守、低鞭腿、灵活顶抗为主;王洪祥拳腿闪躲组合技术运用灵活巧妙,凭借精妙组合KO对手,冈本铁也组合运用凶猛,但在力量方面有所缺乏。这场中华百姓英雄KO全日本空手道冠军经典之战的技术分析,为今后中国散打运动员训练和参加国际对抗比赛提供参考依据。 相似文献
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以2012年伦敦奥运会羽毛球女子单打决赛的比赛录像为研究对象,采取观察和对比分析法对世界排名第1的王仪涵和世界排名第3的李雪芮的发球、前场、中场、后场的击球技术以及双方失误进行统计分析,试图探讨2名选手存在差距。结果表明:王仪涵在前场小球、中场平抽快档、后场劈、吊球还有待提高,因此在训练中要加强以上技术的训练。 相似文献