Self-reported symptoms and risk factors for digital ischaemia among international world-class beach volleyball players     

Daan Van De Pol  Sena Alaeikhanehshir  Mario Maas  P. Paul F.M. Kuijer 《Journal of sports sciences》2016,34(12):1141-1147

The prevalence of ischaemia-related symptoms is remarkably high among elite indoor volleyball players. Since the exposure to sport-specific demands may be higher in beach volleyball compared to indoor volleyball, the aim of this study was to assess the prevalence of ischaemia-related symptoms and associated risk factors among world-class beach volleyball players. Therefore, a questionnaire survey was performed among beach volleyball players active during the 2013 Grand Slam Beach Volleyball in the Netherlands. In total, 60 of the 128 beach volleyball players (47%) participated: 26 males and 34 females from 17 countries. The self-reported prevalence of cold or blue or pale digits in the dominant hand during or immediately after practice or competition was 38% (n = 23). Two risk factors were independently associated with symptoms of blue or pale digits: more than 14 years playing volleyball (odds ratio (OR) 4.42, 90% confidence interval (90% CI) 1.30–15.07) and sex (female) (OR 4.62, 90% CI 1.15–18.57). In conclusion, the prevalence of symptoms associated with digital ischaemia is high among international world-class beach volleyball players. Female sex and the length of the volleyball career were independently associated with an increased risk of ischaemia-related symptoms. The high prevalence of these seemingly innocuous symptoms and possible associated risk factors warrant regular monitoring since early detection can potentially prevent thromboembolic complications and irreversible tissue damage.  相似文献   

中苏论战对毛泽东转变世界战争认识的影响--从"世界大战可以避免"到"世界大战不可避免"的观点变化     

齐卫平  杨倩 《徐州师范大学学报(哲学社会科学版)》2005,31(5):64-70

20世纪60年代后,毛泽东改变了原先“世界大战可以避免或推迟”的判断,突出地强调战争爆发的危险性,从而对中国的建设走向产生极大的影响。毛泽东这一判断变化的过程,与中苏两党关系的演变有着密切的关系。中苏两党从产生分歧、摩擦到公开论战,在一系列问题上形成对立,其中包括关于战争与和平问题的认识。中苏论战产生的影响是多层面的。从中苏论战的影响这一大背景,厘清毛泽东改变判断的原因,有助于更准确和更科学地作出历史的评价。毛泽东形成“战争不可避免”的观点以及对战争的高度警觉,决不是其个人主观意志的产物,而是在特定时代背景影响下、特殊历史事件作用下的结果。  相似文献   

审计为国有企业改革和发展服务的思考     

林辉英 《海南师范大学学报(社会科学版)》2003,16(3):99-102

审计要为国有企业改革和发展服务，首先要将服务的观念和意识贯穿于整个审计监督的全过程；其次，审计要在观念、内容和重点、对象和范围、方法等方面实现转变；最后提出审计服务的具体措施：一、转变观点．以全新思维开展工作；二、不断开拓审计工作新领域；三、明确国家审计、内部审计的职责．发挥其功能；四、执行审计法规，实现审计工作的制度化和规范化；五、进一步改进审计方法。  相似文献   

“Sport for Development” in developing countries: The case of the Vilas Olímpicas do Rio de Janeiro     

《Sport Management Review》2016,19(2):107-119

The benefits of sport for general social outcomes has permeated sport policy in Brazil since the beginning of the twentieth century, but recently the jargon of “development through sport” is more overtly informing public policy and government action in this field. Despite increased uptake of the positive discourse of “sport as a development tool”, the reality for government-funded and -run “sport for development” programs is one far removed from enjoying the attention and financial investment needed to reach their stated development goals. This paper focuses on one such program: the Vilas Olímpicas do Rio de Janeiro. When analysing the specific matters associated with the management of this program three themes were identified that encapsulate the main issues that emerged during the analysis: partnerships, conflicting aims, and community involvement. These themes are analysed in light of the literature that discusses the application of “sport for development” programs worldwide and we conclude with some questions on the applicability of well-defined frameworks and approaches to such programs when these programs themselves tend to operate in very ill-defined and unstable environments.  相似文献   

食用茉莉花香味成分的GC/MS分析   总被引：6，自引：0，他引：6  

王海琴  刘锡葵  柳建军 《昆明师范高等专科学校学报》2006,28(4):11-13

采用水蒸气蒸馏-乙醚萃取法对云南引种食用茉莉花中芳香性成分进行了提取，并用气相色谱-质谱联机技术对其中化学成分进行分析鉴定．共鉴定出46种芳香性有机成分，占茉莉花挥发油提取物总含量的99．9005％．通过对食用茉莉花芳香性成分的分析，为茉莉花香精香料的开发提供了依据．  相似文献   

变奏与期待--90年代后期云南儿童文学印象     

王昆建 《昆明师范高等专科学校学报》2005,27(2):14-17

被称为“太阳鸟作家群”的云南儿童文学一直以自身的地域特色而引人注目。90年代后期以来，云南儿童文学在原有的基础上呈现出开放的视野和现代思考态势。而云南儿童文学在其自身可持续发展中倘要保持良好的势头，也客观地面临着对人才培养的期待。  相似文献   

单片机测控系统中P3口的双重使用     

贾巍 《襄樊学院学报》2002,23(2):70-72

MCS－51系列单片机的P3口是一个双功能口，具有特殊性。当T0口（P3．4）或T1口（P3．5）作为内部定时器使用时，其口线还可作为通用输入／输出口使用。章对单片机P3口的定时器／计时器口的双重使用方法，从原理上作了详细分析，并介绍了其在真空压强、测量仪中的实际应用。解决了单片机自身口资源有限的矛盾。  相似文献   

文质互变发展的顶峰与拐点——略论刘勰的文学发展观     

李锋 《华东师范大学学报(哲学社会科学版)》2005,37(5):59-65

在刘勰看来,以往文学发展的状态的变化,其实质都是因为文质互为量变而形成的递进和衰退。准确地说,他认为:在商周之前,是一个递进的过程,而从商周以后则是一段衰退的历史。那么,商周就成了实际意义上文质彬彬的顶峰。然而,文质无法达到绝对的平衡,商周的“丽而雅”已经开始显示出文进质退的趋势。所以,不可否认,商周实际上又成为文胜质的拐点。文学的发展,在商周之后,便逐步走上了“从质至讹,弥近弥澹”的道路。  相似文献   

中国高校学术职业的结构性变迁及其影响   总被引：1，自引：0，他引：1  

周艳 《清华大学教育研究》2007,28(4):50-55

中国教师学术职业的结构性变迁主要体现在两个方面:一方面指教师间学术职业结构的分化,由过去教师-行政人员间的二元结构,演变为现在的教师-课题经理-亦管亦教亦研的“学者官员“-纯管理者之间的多元关系和分层;另一方面指教师本人职业的分化,主要表现在教师学术角色的多元化.此外,本文还从大学学术行政化的管理体制、课题管理商业化操作、教师量化考核等几个方面探讨了引起这一结构变化的原因和后果.  相似文献   

"紧逼防守"现代篮球运动发展的趋势   总被引：3，自引：0，他引：3  

刘大奇  王崇礼 《周口师范学院学报》2005,22(2):94-97,101

随着篮球运动的快速发展,各队在训练中越来越重视对防守的训练,比赛中通过具有攻击性的防守及防守阵型的突然变化,扰乱攻方进攻节奏,给攻方造成心理压力.利用这种战术反败为胜的例子屡见不鲜.本文通过对紧逼防守、区域防守等防守战术的变化及训练谈一些看法.  相似文献