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王志明 《上海海事大学学报》2002,23(2):10-13
针对目前航海人员对航迹计算法产生的几点误解进行了全面的剖析 ,指出应如何正确理解航迹计算公式的图解法 ;旨在帮助航海驾驶员消除误解 ,引导这一方法的正确运用。 相似文献
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C. G. Olesen B. H. Larsen E. L. Andresen M. de Zee 《European Journal of Sport Science》2015,15(3):242-247
AbstractThe aim of this study was to develop a performance test set-up for America's Cup grinders. The test set-up had to mimic the on-boat grinding activity and be capable of collecting data for analysis and evaluation of grinding performance. This study included a literature-based analysis of grinding demands and a test protocol developed to accommodate the necessary physiological loads. This study resulted in a test protocol consisting of 10 intervals of 20 revolutions each interspersed with active resting periods of 50 s. The 20 revolutions are a combination of both forward and backward grinding and an exponentially rising resistance. A custom-made grinding ergometer was developed with computer-controlled resistance and capable of collecting data during the test. The data collected can be used to find measures of grinding performance such as peak power, time to complete and the decline in repeated grinding performance. 相似文献
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采用文献资料法、问卷调查法、专家访谈法、数理统计法,调查、研究山东省帆船队女子运动员生理期,了解帆船运动员生理期的身体状况及生理期训练计划。 相似文献
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帆船帆板和足球运动员情绪唤醒水平的生理监测指标与评价研究 总被引：1，自引：0，他引：1
研究探讨了帆船帆板和足球运动员情绪唤醒水平的生理监测指标与评价。结果表明：对于帆船帆板和足球项目运动员，前额肌电值不能作为情绪唤醒水平变化的评价指标；手指皮肤导电性可以较好地反映帆船帆板和足球项目运动员的情绪唤醒水平；手掌心温度和手指端血容可以作为帆船帆板运动员情绪唤醒水平的敏感性监测指标；心率值的变化可以较好地反映帆船帆板和足球项目运动员的放松和兴奋两种情绪唤醒水平。 相似文献
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采用国内研制的"重力式力量训练的测试与评价系统",对3名优秀的国家队女子帆板运动员60s速度力量耐力训练进行跟踪测试,并将2年的测试数据进行对比分析,通过测试发现,在同等重量下,训练效果有很大的差异.研究结果直接应用于国家帆板队力量训练,为运动员的选拔工作提供了科学依据. 相似文献
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青岛市社区体育发展建设与2008年奥运会帆船比赛互动研究 总被引：1，自引：0，他引：1
惠萍 《山东体育学院学报》2006,22(5):36-38
1研究对象与方法1 .1研究对象青岛市社区体育建设。1 .2研究方法1 .2.1文献法采用了文献研究法，收集、鉴别、整理了大量有关文献资料，查阅了大量有关社区体育与人刃8年奥运会互动发展的资料，为论文的分析与研究奠定基础。1.2.2问卷调查法采用问卷调查法对青岛市社区体育建设 相似文献
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运动员的文化教育是中国乃至世界范围内竞技体育发展的一个薄弱环节,如何提高运动员的文化素质是长期困扰体育界的棘手问题。帆船帆板是所有竞技体育项目中对运动员文化素质要求最高的项目之一,开发国家帆船帆板队远程教育资源,通过远程教育有助于提高运动员的综合素质和参赛能力。备战伦敦奥运会的同时,可以发挥国家队的示范和辐射作用,带动在役运动员通过利用远程教育资源自主学习,养成终身学习〉-7惯。 相似文献
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RÉmy Hurdiel HANS P.A. Van Dongen Christophe Aron Peter McCauley Laure Jacolot Denis Theunynck 《Journal of sports sciences》2013,31(2):172-174
AbstractIn solo offshore sailing races like those of the Solitaire du Figaro, sleep must be obtained in multiple short bouts to maintain competitive performance and safety. Little is known about the amount of sleep restriction experienced at sea and the effects that fatigue from sleep loss have on sailors’ performance. Therefore, we assessed sleep in sailors of yachts in the Figaro 2 Beneteau class during races and compared response times on a serial simple reaction-time test before and after races. Twelve men (professional sailors) recorded their sleep and measured their response times during one of the three single-handed races of 150, 300 and 350 nautical miles (nominally 24–50 h in duration). Total estimated sleep duration at sea indicated considerable sleep insufficiency. Response times were slower after races than before. The results suggest that professional sailors incur severe sleep loss and demonstrate marked performance impairment when competing in one- to two-day solo sailing races. Competitive performance could be improved by actively managing sleep during solo offshore sailing races. 相似文献