排序方式： 共有8条查询结果，搜索用时 15 毫秒
1
1.
对优秀男子铁人三项运动员2009年全国锦标赛赛前训练期的血红蛋白（HB）、血尿素（BU）、肌酸激酶（CK）和睾酮（T）值进行测试和分析,探讨男子铁人三项运动员赛前训练期机能变化规律,结果显示：随着训练负荷的变化,身体各项机能指标也产生了明显的变化,赛前基本调整到最佳状态,表明赛前的训练安排达到较好效果。 相似文献
2.
《Sport Management Review》2014,17(2):107-120
Sport development is a core concern for all nations as they seek to enhance elite performance and cultivate opportunities for mass participation. In the sport of triathlon, new models for sport development have been shown to exist where third party organisations have a critical role in the delivery of it. Using institutional theory as a framework, the purpose of this study was to explore the emerging models of sport development in triathlon. A case study of triathlon in Australia and in the United States was used. The results illustrated emerging models of sport development in both the US and Australia. Third party organisations as well as local councils have become increasingly involved in the creation and implementation of programmes and activities that would normally be the responsibility of a governing body. As such, the organisational fields and institutional logics in triathlon are rendering governing bodies irrelevant. Governing bodies are grappling with finding relevance and legitimacy in triathlon. Implications for sport management research, practice, and education are discussed. 相似文献
3.
基于作者2020年参与“十四五”铁人三项项目发展规划编制的系列调研资料,以新制度理论作为分析框架,分析中国铁人三项协会脱钩改革的制度困境,寻找中国铁人三项协会改革的出路。认为中国铁人三项协会脱钩改革的制度困境包括:协会的行业自治权缺乏必要的制度维护,非营利性运营的制度规定具有模糊性,影响协会获取生存与发展的资源;协会运行的制度在规范性维度尚有缺失,制约协会脱钩的进程;协会改革参与主体对认知性维度的制度存在片面性、差异性理解,导致脱钩改革制度的认同困境。提出:调整协会改革规制性维度的制度,增强制度的适用性;完善规范性维度的制度,促进协会健康有序运行;秉承多元化理念建构协会脱钩改革认知性维度的制度,满足不同利益主体对脱钩改革的价值诉求。 相似文献
4.
Chantelle du Plessis Anthony J. Blazevich Chris Abbiss Jodie Cochrane Wilkie 《Journal of sports sciences》2020,38(10):1105-1114
ABSTRACT Prior exercise can negatively affect movement economy of a subsequent task. However, the impact of cycling exercise on the energy cost of subsequent running is difficult to ascertain, possibly because of the use of different methods of calculating economy. We examined the influence of a simulated cycling bout on running physiological cost (running economy, heart rate and ventilation rates) and perceptual responses (ratings of perceived exertion and effort) by comparing two running bouts, performed before and after cycling using different running economy calculation methods. Seventeen competitive male triathletes ran at race pace before and after a simulated Olympic-distance cycling bout. Running economy was calculated as V?O2 (mL?kg?1?min?1), oxygen cost (EO2, mL?kg?1?m?1) and aerobic energy cost (Eaer, J?kg?1?m?1). All measures of running economy and perceptual responses indicated significant alterations imposed by prior cycling. Despite a good level of agreement with minimal bias between calculation methods, differences (p < 0.05) were observed between Eaer and both V?O2 and EO2. The results confirmed that prior cycling increased physiological cost and perceptual responses in a subsequent running bout. It is recommended that Eaer be calculated as a more valid measure of running economy alongside perceptual responses to assist in the identification of individual responses in running economy following cycling. 相似文献
5.
本文采用文献资料法,专家访谈法和数理统计法研究分析了铁人三项运动项目的一般特征和部分训练学特征。经分析认为铁人三项运动是成人运动项目,运动员年龄普遍偏大,出优秀成绩时的年龄也较大。铁人三项运动训练学特征突出表现在3个方面,(1)铁人三项各单项贡献多少决定着训练安排侧重与比例,跑步对总成绩的贡献最大;(2)单项间的相关程度影响着训练安排与效果,跑步与自行车,游泳与自行车相关系数较大,而游泳与跑步相关系数不大;(3)单项成绩波动变化给选手带来机遇与挑战,跑步、自行车成绩波动较大,游泳总体波动不大。 相似文献
6.
通过对生化、血液、免疫等指标的实验研究,探讨八一铁人三项队女运动员在800m游泳训练考核后,机体发生的应激损伤情况。对八一铁人三项队9名女运动员,在安静状态、800m游泳考核后2h内、次日晨,分别抽取静脉血10ml,进行生化、血液、免疫等指标的测试,从而对运动员机体的应激损伤情况进行分析。生化指标ALT、AST、BU、CK等在800m游泳考核后升高明显,次日晨基本都能恢复至安静状态水平;血液指标RBC、HB、HCT在三次测试中次日晨最高,800m游泳考核后N升高、L降低,次日晨基本恢复;免疫指标800m游泳考核后CD3、CD4均有所升高,次日晨反而降低,800m游泳考核后CD19升高、CD56降低。八一铁人三项队女运动员,在800m游泳考核后2h内及次日晨,其生化、血液、免疫等部分指标发生变化,这些指标的波动,能对其机体应激损伤的评价,提供辅助与指导意义。 相似文献
7.
运用文献资料调研、数据统计、比较分析等方法,对世界优秀女子铁人三项运动员的成长历程、身体形态、成绩进行比较分析,对我国优秀铁人三项运动员的同样指标及生化指标的分析,阐述了王虹霓与世界优秀运动员的差距和优势。 相似文献
8.
1