共查询到19条相似文献，搜索用时 203 毫秒
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选择广东省游泳队游泳运动员为研究对象,对不同距离自由泳赛后血乳酸水平作了比较,研究了赛后血乳酸与成绩的关系以及纵向观察伴随成绩提高血乳酸水平的变化。结果表明：自由泳中,100m和200m赛后血乳酸最高,血乳酸水平与成绩不存在显著相关。纵向观测随运动成绩的提高,乳酸水平显著提高。 相似文献
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目的:旨在对不同距离、不同泳姿、不同性别、不同年龄段游泳运动员比赛后的血乳酸进行比较;以及纵向观察了伴随成绩的提高相对应的血乳酸变化。方法:记录浙江游泳队56名运动员的预决赛成绩和赛后乳酸值。血乳酸测试的血样采集时间为50m、100m、200m赛后3min;400m赛后1min,采集手指指尖20ul全血,测试仪器为德国EKF BIOSEN C-LINE乳酸分析仪。研究结果:不同距离游泳赛后以200m赛后乳酸水平最高;男子赛后乳酸水平要高于女子;不同泳姿赛后乳酸水平以仰泳最高;低年龄段运动员赛后乳酸水平低于中高年龄段;不同距离赛后成绩与乳酸水平的纵向比较,随着运动成绩的提高,赛后乳酸也随之提高,但无显著性差异。 相似文献
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游泳比赛后血乳酸变化的纵向观察 总被引：4，自引：0，他引：4
本文对不同距离比赛运动员成绩及血乳酸的纵向变化进行了研究。对运动员3年纵向研究表明,随着运动成绩的显著提高,运动员赛后血乳酸显著降低。运动员参加不同距离比赛的血乳酸对比表明,以200米、100米赛后血乳酸最高,400米次之,50米列居第三,800米、1500米赛后血乳酸值最低。在不同泳姿中,仰泳赛后血乳酸最高,蛙泳、蝶泳血乳酸最低。混合泳项目血乳酸较高。 相似文献
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我国速滑冬奥会选手改进有氧训练的个性化研究——第20届冬奥会速滑科研攻关思考之一 总被引：1，自引：1，他引：0
研究目的：针对冬季奥运会速度滑冰500m项目比赛规程变化的新情况,为提高我国奥运选手有氧代谢能力与血乳酸清除的效率,以适应比赛规则的变化,探索适合优秀速滑短距离选手个人特点的有氧训练新途径。研究方法：采用血乳酸控制训练负荷的方法,对2名参加冬奥会选手改进后的有氧训练过程进行实时监控,并通过不同赛季的比较对有氧训练改进的效果进行判定。研究结果：有氧训练改进后,2005～2006赛季与2004～2005赛季相比,王曼利500m成绩提高0.75s,15min血乳酸峰值浓度下降了2mmol/L,30min血乳酸峰值浓度下降了0.6mmol/L;于凤桐500m成绩提高了0.51s,15min血乳酸峰值浓度下降了1.8mmol/L,30min血乳酸峰值浓度下降了1.4mmol/L。研究结论：有氧训练的改进,提高了运动员机体血乳酸清除效率,使其能在最短时间将血乳酸降至较低水平,达到了适应冬奥会比赛日程变化的目的。 相似文献
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研究心率和血乳酸与女子500m四人皮艇运动成绩的相关性,探讨心率和血乳酸的联合检测对女子四人皮艇训练监控的应用价值。研究得出,在大强度比赛或者赛前集训中,心率与血乳酸的联合检测能更好地反映运动强度,具有切实的意义;心率、血乳酸值与女子500m四人皮艇运动成绩存在显著相关;心率与血乳酸的联合检测对女子四人皮艇运动训练监控具有切实的应用价值。 相似文献
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糖酵解供能系统对羽毛球运动能力的影响 总被引：3，自引：0，他引：3
以中国青年队、各省市羽毛球专业队队员为研究对象,测定羽毛球比赛过程中血乳酸和心率的动态变化和运动员的糖酵解供能能力,结果发现:①羽毛球单打比赛过程中存在高血乳酸现象;②男女单打选手赛中和赛后的血乳酸值均显著高于双打选手;③运动员的糖酵解供能能力与比赛成绩之间存在一定的正相关。提示:糖酵解供能系统对羽毛球运动员起着不可忽视的作用,在如练中应当引起足够的重视。 相似文献
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血乳酸的测定正在成为许多游泳训练大纲的一个重要组成部分。尽管血乳酸训练用途很多,但其最普通的用途是发展和调节游泳运动员的有氧代谢能力。一旦能够对血乳酸进行精确的测定,那么不管是自由泳中的划臂、打水或伸拉动作,都需要定期进行血乳酸测试来控制其变化,调整训练计划。为了达到特定指标成绩而进行的训练,应当确保运动员游得不太快,也不太慢,还要达到预期的血乳酸水平。 相似文献
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通过对2003年全国游泳冠军赛女子1500m决赛情况的统计和中外优秀女子1500m自由泳运动员分段成绩的对比分析，找出我国运动员与世界优秀选手间的差距所在，以提高我国女子1500m自由泳竞赛水平。 相似文献
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用流水游泳池进行速度感觉练习与表象训练,来提高运动员100米自由泳前程50米速度感觉能力。实验将24名运动员分为A组(流水游泳池练习和表象训练);B组(表象训练);C组(控制组),每周3次共4周。结果为:1.A组速度感觉能力有明显的提高,2.单手5次划手频率感觉指标是有效的评价指标。 相似文献
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就第八届全运会游泳比赛分析我国游泳的整体水平及各队实力,指出中国游泳存在不容乐观的一些新问题,并希望中国游泳正视现状,扬长避短,迎接挑战,再创辉煌。 相似文献
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Bilateral inter-arm coordination in freestyle swimming: effect of skill level and swimming speed 总被引：1，自引：1，他引：0
The aim of this study was to examine the influence of level of skill and swimming speed on inter-limb coordination of freestyle swimming movements. Five elite (2 males, 3 females; age 18.9+/-1.0 years, height 1.71+/-0.04 m, body mass 62.1+/-7.0 kg) and seven novice (age 22.0+/-2.0 years, height 1.77+/-0.04 m, body mass 74.8+/-9.0 kg) swimmers swam a sprint and a self-paced 25 m freestyle trial. The swimming trials were recorded by four digital cameras operating at 50 Hz. The digitized frames underwent a three-dimensional direct linear transformation to yield the three-dimensional endpoint kinematic trajectories. The spatio-temporal relationship between the upper limbs was quantified by means of the peak amplitude and time lag of the cross-correlation function between the right and left arm's endpoint trajectories. A strong anti-phase coupling between the two arms, as confirmed by peak amplitudes greater than 0.8, was noted for both groups and swimming speeds. Significantly higher (P<0.05) peak amplitudes were observed for the sprint compared with self-paced swimming. No significant differences in the strength of inter-limb coupling were noted between the elite and novice swimmers (P>0.05). Time lags were very close to 0 ms and did not differ between groups or swimming speeds. We conclude that in freestyle swimming, the intrinsic anti-phase (180 degrees phase difference) inter-limb relationship is strongly preserved despite the physically powerful environmental influence of the water and this "preferred" pattern is not affected by level of skill. In contrast, increasing movement speed results in stronger inter-limb coupling that is closer to the anti-phase inter-limb relationship. 相似文献
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目的:探讨国内和国际比赛中200m个人混合泳运动员的节奏策略,各种泳姿对比赛成绩的影响以及性别和游泳能力水平所扮演的角色。方法:国内和国际各三场比赛中94名运动员的分段成绩和比赛用时百分比用于分析,采用双因素方差分析来探讨性别(男、女)和游泳能力水平(1-3名和4-8名)对各泳姿比赛用时百分比的影响,另外通过皮尔逊相关系数来确定哪种泳姿(分段成绩)对比赛成绩的影响。结果:国内和国际比赛中运动员均以最快的速度完成前1/4赛程,在比赛中间阶段速度明显下降,最后1/4阶段再全力冲刺的比赛节奏。获得奖牌者的仰泳成绩相关系数最高(r>0.730),4-8名运动员则是自由泳成绩(r>0.620)。国内和国际比赛中男子运动员在蛙泳阶段的比赛用时百分明显高于女子(P=0.005,P=0.006),但在自由泳阶段较低(P=0.034,P=0.005)。结论:不论性别和游泳能力水平,国内和国际比赛中200m个人混合泳运动员的节奏策略均为抛物线型。其中男子运动员更倾向于积极加速的节奏策略,而女子则青睐于消极的节奏策略。在国内外比赛中,1-3名和4-8名分别与仰泳、自由泳成绩强相关。在专项训练中,应该考虑性别和游泳能力水平的差异尤其在仰泳和自由泳泳姿上。 相似文献
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Dale O. Nelson 《Research quarterly for exercise and sport》2013,84(3):389-393
Abstract The purpose of this investigation was to study the effect of swimming on selected components of athletic performance as measured by the following tests: back strength, leg strength, bicycle ergometer (combination of strength and endurance, but predominantly endurance), and vertical jump (explosive power). Subjects were pretested for three days on each test, after which they participated in 45 minutes of swimming, and performance was tested oh one test one hour after the swim on any given day. A single day's swimming was found to significantly affect the vertical jump, but other performance tests were not affected. 相似文献
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中国竞技游泳的现状及发展对策 总被引：10，自引：0，他引：10
许琦 《西安体育学院学报》2001,18(1):78-80
通过对 1993— 1999年中国竞技游泳各单项运动成绩的发展变化的研究 ,对中国竞技游泳的现状及所存在的问题进行了分析 ,并提出了对策 ,希望以此为推动中国游泳事业的发展尽一份微薄之力。 相似文献
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目的：为游泳运动员在水槽中进行水感表型强化训练提供参考和建议。方法：将上海市14名一级男性游泳运动员随机分为两组，A组为实验组，B组为对照组。A组每周安排3次水槽中的水感训练课，B组采用常规的泳池训练，保证两组的训练量一致，实验周期为20周。运用上海市游泳水槽系统的三线运动分析系统对运动员训练前后的技术动作进行分析与诊断，运用Tritonwear游泳运动表现分析系统对运动员训练前后50m自由泳成绩和游效指数进行分析。结果：A组与B组运动员经过一段时间的训练后，50 m自由泳成绩和游效指数都较实验前有了一定的提高；而且A组的50 m自由泳成绩和游效指数相比较B组都得到了明显的提高，实验后A组和B组队员的50 m自由泳成绩和游效指数存在显著性差异。结论：通过水槽中水感表型的多种训练方法，运动员的技术动作得到了改进，划水效果得到了提高，运动成绩也得到了提高。对水感的定量研究是我们未来的研究方向，后期还需要更加深入的研究。 相似文献
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The aim of this study was to examine the influence of level of skill and swimming speed on inter-limb coordination of freestyle swimming movements. Five elite (2 males, 3 females; age 18.9?±?1.0 years, height 1.71?±?0.04?m, body mass 62.1?±?7.0?kg) and seven novice (age 22.0?±?2.0 years, height 1.77?±?0.04?m, body mass 74.8?±?9.0?kg) swimmers swam a sprint and a self-paced 25?m freestyle trial. The swimming trials were recorded by four digital cameras operating at 50 Hz. The digitized frames underwent a three-dimensional direct linear transformation to yield the three-dimensional endpoint kinematic trajectories. The spatio-temporal relationship between the upper limbs was quantified by means of the peak amplitude and time lag of the cross-correlation function between the right and left arm's endpoint trajectories. A strong anti-phase coupling between the two arms, as confirmed by peak amplitudes greater than 0.8, was noted for both groups and swimming speeds. Significantly higher (P <?0.05) peak amplitudes were observed for the sprint compared with self-paced swimming. No significant differences in the strength of inter-limb coupling were noted between the elite and novice swimmers (P >?0.05). Time lags were very close to 0?ms and did not differ between groups or swimming speeds. We conclude that in freestyle swimming, the intrinsic anti-phase (180° phase difference) inter-limb relationship is strongly preserved despite the physically powerful environmental influence of the water and this “preferred” pattern is not affected by level of skill. In contrast, increasing movement speed results in stronger inter-limb coupling that is closer to the anti-phase inter-limb relationship. 相似文献
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Toussaint HM Truijens M Elzinga MJ van de Ven A de Best H Snabel B de Groot G 《Sports biomechanics / International Society of Biomechanics in Sports》2002,1(1):1-10
The effect on drag of a Speedo Fast-skin suit compared to a conventional suit was studied in 13 subjects (6 males, 7 females) swimming at different velocities between 1.0 and 2.0 m.s-1. The active drag force was directly measured during front crawl swimming using a system of underwater push-off pads instrumented with a force transducer (MAD system). For a range of swimming speeds (1.1, 1.3, 1.5 and 1.7 m.s-1), drag values were estimated. On a group level, a statistically non-significant drag reduction effect of 2% was observed for the Fast-skin suit (p = 0.31). Therefore, the 7.5% reduction in drag claimed by the swimwear manufacturer was not corroborated. 相似文献