共查询到20条相似文献，搜索用时 875 毫秒
1.
本文运用录像观察法、数理统计法对我国优秀运动员丁宁、郭跃在比赛中发抢段的技战术运用情况进行分析,为中国乒乓球运动员今后的训练提供参考。 相似文献
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采用文献资料法、录像分析法和数据统计法,分析张怡宁反手弧圈球技术在比赛中的使用率和得失分率。针对张怡宁在49届世乒赛女单半决赛对刘诗雯、决赛对郭跃、以及29届奥运会女单半决赛对李佳薇、决赛对王楠等4场比赛中,发球反手抢拉、接发球反手抢拉和相持中的反手技术特点进行统计分析对比,找出存在的优势和不足。 相似文献
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运用文献资料法、录像观察法、三段指标法及数理统计法等,对郭跃/李晓霞的技战术特征进行分析、归纳、总结,旨在为教练员科学训练提供参考. 相似文献
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运用录像观察统计法、数理统计法和乒乓球“三段评估”等方法,对马琳在北京奥运会（有机时代）和横滨世锦赛（无机时代）的6场重大比赛录像视频进行技战术统计,从微观上分析和比较马琳“有机时代”“无机时代”在发抢段、接抢段、相持段技战术运用效果,为其在“无机时代”进行针对性训练和在比赛中有效运用技战术提供参考依据。 相似文献
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第48届世乒赛男子团体半决赛波尔技战术分析 总被引：1，自引：0，他引：1
本文通过48届世界乒乓球团体锦标赛男团半决赛中国队对德国队的比赛录像统计分析德国选手波尔在发球抢攻段、接发球抢攻段和相持段的技战术特点,为中国乒乓球队进行针对性训练和在比赛中有效运用技战术提供参考依据。 相似文献
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江小燕 《体育科技文献通报》2013,(12):70-71
运用文献资料、录像观察、三段指标等方法,对李晓霞在第52届世界乒乓球锦标赛的录像进行技战术量化统计,对李晓霞在发抢、接抢及相持段的技战术运用情况进行分析研究,以期为优秀女子乒乓球选手日后的训练和比赛提供参考依据. 相似文献
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无机时代王皓乒乓球技战术分析 总被引：1，自引：0，他引：1
运用文献资料法、录像观察法、三段指标法等,以计算权重的形式对乒乓球拍改用无机胶水后的2008年世界杯、2008年国际乒联职业巡回赛总决赛和2009年世锦赛等世界大赛中王皓的比赛录像数据进行技战术量化统计,分析王皓在无机时代的三段技战术指标,并对无机时代和有机时代王皓的三段技战术指标进行对比研究,为优秀直拍横打选手的比赛和训练提供有价值的参考. 相似文献
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胡静涛 《体育科技文献通报》2011,19(4):47-48,50
本文运用文献资料法、数理统计法和录像观察法,对王皓在2008年第49届世界乒乓球锦标赛男团四分之一决赛、半决赛、决赛中的反手台内＂侧拧＂技战术在发球后＂侧拧＂段,接发球＂侧拧＂段,相持中＂侧拧＂段进行了统计、分析,同时对训练和比赛中反手台内＂侧拧＂技术的合理使用提出了一些建议。 相似文献
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An important goal of the athlete's everyday diet is to provide the muscle with substrates to fuel the training programme that will achieve optimal adaptation for performance enhancements. In reviewing the scientific literature on post-exercise glycogen storage since 1991, the following guidelines for the training diet are proposed. Athletes should aim to achieve carbohydrate intakes to meet the fuel requirements of their training programme and to optimize restoration of muscle glycogen stores between workouts. General recommendations can be provided, preferably in terms of grams of carbohydrate per kilogram of the athlete's body mass, but should be fine-tuned with individual consideration of total energy needs, specific training needs and feedback from training performance. It is valuable to choose nutrient-rich carbohydrate foods and to add other foods to recovery meals and snacks to provide a good source of protein and other nutrients. These nutrients may assist in other recovery processes and, in the case of protein, may promote additional glycogen recovery when carbohydrate intake is suboptimal or when frequent snacking is not possible. When the period between exercise sessions is <8?h, the athlete should begin carbohydrate intake as soon as practical after the first workout to maximize the effective recovery time between sessions. There may be some advantages in meeting carbohydrate intake targets as a series of snacks during the early recovery phase, but during longer recovery periods (24?h) the athlete should organize the pattern and timing of carbohydrate-rich meals and snacks according to what is practical and comfortable for their individual situation. Carbohydrate-rich foods with a moderate to high glycaemic index provide a readily available source of carbohydrate for muscle glycogen synthesis, and should be the major carbohydrate choices in recovery meals. Although there is new interest in the recovery of intramuscular triglyceride stores between training sessions, there is no evidence that diets which are high in fat and restricted in carbohydrate enhance training. 相似文献
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《European Journal of Sport Science》2013,13(3):273-278
AbstractThe aim of the current inquiry was to identify the national origin of scholars who lead the work in the area of Sport and Exercise Psychology, and to examine whether their research output is connected to the Olympic success of their national athletes. Consequently, the two specialised journals with the highest impact factors in this field were examined for the origin of publications throughout 11 years for authors' national affiliations. Subsequently, the link between national research output and Olympic medals was examined. The results revealed that over 50% of the publications originate from Canada, the UK and the USA. National research output in Sport and Exercise Psychology was correlated with the number of Olympic medals; the proportion of shared variance was 42% and 57%, respectively, in the two journals. Nevertheless, it is posited that the observed link is primarily due to other factors that ought to be examined in future research. 相似文献
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高俊雄 《上海体育学院学报》2010,34(1)
采用文献资料法,从体育、运动和休闲等视角,对台湾地区休闲运动的概念表达和使用状况进行研究.发现:台湾地区的体育、运动和休闲概念的标识和使用经历着变化发展的过程.在今后的台湾地区相关概念使用中将延续如下发展趋势:行政机构和中小学用体育涵盖运动休闲;大学和学术研究中将运动、休闲和体育进行区分;新闻媒体和产业则偏向用休闲、运动取代体育. 相似文献
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Massimiliano Ditroilo Roberta Forte David McKeown Colin Boreham Giuseppe De Vito 《Journal of sports sciences》2013,31(15):1675-1682
Abstract Despite its widespread use in performance assessment, the reliability of vertical jump in an ageing population has not been addressed properly. The aim of the present study was to assess intra- and inter-day reliability of countermovement jump in healthy middle-aged (55–65 years) and older (66–75 years) men and women. Eighty-two participants were recruited and asked to perform countermovement jumps on two different occasions interspersed by 4 weeks. The middle-aged groups exhibited excellent absolute reliability for flight height, jump height, peak force, peak power, peak force/body mass, and peak power/body mass, with coefficients of variation ranging from 2.9% to 7.2% in men and from 3.6% to 6.9% in women and moderate-to-high intraclass correlations (0.75 to 0.97 in men; 0.77 to 0.95 in women). The older groups displayed good coefficients of variation (4.2% to 10.8% in men and 3.4% to 9.5% in women), but the intraclass correlations were low-to-high (0.43 to 0.84 in men; 0.42 to 0.93 in women). Overall, intra-session reliability was higher than inter-session reliability. Peak power was by far the most consistent variable, whereas flight and jump height had the most marked variability. The minimum detectable change varied from 10.5% to 33%, depending on the variable examined, suggesting important implications for intervention studies. 相似文献
15.
高校武术教学与改革的调查研究 总被引：17，自引：0，他引：17
崔浩澜 《武汉体育学院学报》2005,39(12):102-104
围绕高校武术教学的现状和改革,对河南省18所高校的1 336名学生和25名武术教师分别进行了问卷和走访调查。结果显示,武术是高校学生很感兴趣的教学项目,我们对此并没有重视,存在教学器材匮乏、教学内容陈旧等问题。其改革应从转变观念、改善课程结构、精选教材等方面进行。 相似文献
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Carbohydrates and fat for training and recovery 总被引：3，自引：0，他引：3
An important goal of the athlete's everyday diet is to provide the muscle with substrates to fuel the training programme that will achieve optimal adaptation for performance enhancements. In reviewing the scientific literature on post-exercise glycogen storage since 1991, the following guidelines for the training diet are proposed. Athletes should aim to achieve carbohydrate intakes to meet the fuel requirements of their training programme and to optimize restoration of muscle glycogen stores between workouts. General recommendations can be provided, preferably in terms of grams of carbohydrate per kilogram of the athlete's body mass, but should be fine-tuned with individual consideration of total energy needs, specific training needs and feedback from training performance. It is valuable to choose nutrient-rich carbohydrate foods and to add other foods to recovery meals and snacks to provide a good source of protein and other nutrients. These nutrients may assist in other recovery processes and, in the case of protein, may promote additional glycogen recovery when carbohydrate intake is suboptimal or when frequent snacking is not possible. When the period between exercise sessions is < 8 h, the athlete should begin carbohydrate intake as soon as practical after the first workout to maximize the effective recovery time between sessions. There may be some advantages in meeting carbohydrate intake targets as a series of snacks during the early recovery phase, but during longer recovery periods (24 h) the athlete should organize the pattern and timing of carbohydrate-rich meals and snacks according to what is practical and comfortable for their individual situation. Carbohydrate-rich foods with a moderate to high glycaemic index provide a readily available source of carbohydrate for muscle glycogen synthesis, and should be the major carbohydrate choices in recovery meals. Although there is new interest in the recovery of intramuscular triglyceride stores between training sessions, there is no evidence that diets which are high in fat and restricted in carbohydrate enhance training. 相似文献
17.
Obesity is a complex disease with multiple contributing factors.One of the most intensely studied factors during the past decade has been the gut microbiota,which is the community of all microbes in the intestinal tract.The gut microbiota,via energy extraction,inflammation,and other actions,is now recognized as an important player in the pathogenesis of obesity.Dysbiosis,or an imbalance in the microbial community,can initiate a cascade of metabolic disturbances in the host.Early life is a particularly important period for the development of the gut microbiota,and perturbations such as with antibiotic exposure can have long-lasting consequences for host health.In early life and throughout the life span,diet is one of the most important factors that shape the gut microbiota.Although diets high in fat and sugar have been shown to contribute to dysbiosis and disease,dietary fiber is recognized as an important fermentative fuel for the gut microbiota and results in the production of short-chain fatty acids that can act as signaling molecules in the host.One particular type of fiber,prebiotic fiber,contributes to changes in the gut microbiota,the most notable of which is an increase in the abundance of Bifidobacterium.This review highlights our current understanding of the role of gut microbiota in obesity development and the ways in which manipulating the microbiota through dietary means,specifically prebiotics,could contribute to improved health in the host,including musculo skeletal health. 相似文献
18.
对高校田径教学现状的思考及改革设想 总被引：1，自引：0，他引：1
就当前普通高校田径教学中存在的问题进行分析研究,并提出了对田径课程教学改革的设想.高校田径教学要采用多种方法和手段,全面提高教师素质,完善田径教材自身的科学性和完整性,激励学生加入到田径运动中来,使田径课教学在健身教育中发挥更大作用. 相似文献
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Biomechanics and motor control researchers measure how the body moves and interacts with its environment. The aim of this review paper is to consider some key issues in research methods in biomechanics and motor control. The review is organized into four sections: proposing, conducting, analysing and reporting research. In the first of these, we emphasize the importance of defining a worthy research question and of planning the study before its implementation to prevent later difficulties in the analysis and interpretation of data. In the second section, we cover selection of trial sizes and suggest that using three trials or more may be beneficial to provide more ‘representative’ and valid data. The third section on analysis of data concentrates on effect size statistics, qualitative and numerical trend analysis and cross-correlations. As sample sizes are often small, the use of effect size is recommended to support the results of statistical significance testing. In using cross-correlations, we recommend that scatterplots of one variable against the other, with the identified time lag included, be inspected to confirm that the linear relationship assumption underpinning this statistic is met and, if appropriate, that a linearity transformation be applied. Finally, we consider important information related to the issues above that should be included when reporting research. We recommend reporting checks or corrections for violations of underpinning assumptions, and the effect of these checks or corrections, to assist in advancing knowledge in biomechanics and motor control. 相似文献
20.
黔东南苗侗族传统体育活动有的有几百年的历史,经久不衰,比如芦笙舞、斗牛,龙舟、侗族摔跤,经2009年和2010年两次全州广泛普查,苗乡侗寨有各类少数民族传统体育项目80多项（种）其中在民族节庆活动中一直延续的达50余项（种）。节日和传统体育活动似乎有着某种联系,黔东南苗侗族节日传承性如何,节日对苗侗族传统体育有何作用,带着这些疑问,探讨黔东南苗侗族节日和传统体育的关系,以期能够为黔东南苗侗族传统体育文化的保护与传承提理论支持。 相似文献