Reviewing the Variability-Overuse Injury Hypothesis: Does Movement Variability Relate to Landing Injuries?     

Andrew D. Nordin  Janet S. Dufek 《Research quarterly for exercise and sport》2019,90(2):190-205

Purpose: Overuse injuries are common in sport, but complete understanding of injury risk factors remains incomplete. Although biomechanical studies frequently examine musculoskeletal injury mechanisms, human movement variability studies aim to better understand neuromotor functioning, with proposed connections between overuse injury mechanisms and changes in motor variability. Method: In a narrative review, we discuss the variability-overuse injury hypothesis, which suggests repeated load application leads to mechanical tissue breakdown and subsequent injury when exceeding the rate of physiological adaptation. Due to the multidisciplinary nature of this hypothesis, we incorporate concepts from motor control, neurophysiology, biomechanics, as well as research design and data analysis. We therefore summarize multiple perspectives while proposing theoretical relationships between movement variability and lower extremity overuse injuries. Results: Experimental data are presented and summarized from published experiments examining interactions between experimental task demands and movement variability in the context of drop landing movements, along with comparisons to previous movement variability studies. Conclusion: We provide a conceptual framework for sports medicine researchers interested in predicting and preventing sports injuries. Under performance conditions with greater task demands, we predict reduced trial-to-trial movement variability that could increase the likelihood of overuse injuries.  相似文献   

北京冬奥会背景下黑龙江省高校冰雪运动发展路径     

刘义峰  李冰  穆亮  关富余  何志海  贺鹤  康建鑫  赵赟昀 《哈尔滨体育学院学报》2020,(2):38-43

2022年冬奥会已进入北京时间。黑龙江省各高校应在习主席新时代中国特色社会主义思想引领下,深入贯彻党的教育方针,将立德树人根本任务深切落到实处,积极响应"带动3亿人参与冰雪运动"的伟大号召,加速发展高校冰雪运动。本文采用文献资料、逻辑分析、归纳等研究方法,对北京冬奥会背景下黑龙江省高校冰雪运动发展的现状及存在问题进行分析,并探寻一条符合新时代发展需要的黑龙江省高校冰雪运动发展路径,旨在全面振兴黑龙江省高校冰雪运动,为2022年北京冬奥会保驾护航。  相似文献   

The Mystery Room: discovering the flexibility of an information literacy-based educational escape room     

Glenn Koelling  Alyssa Russo 《Public Services Quarterly》2020,16(1):1-11

Abstract

The Mystery Room is an educational escape room based on information literacy and applied to multiple audiences, including first-year students and library student employees. In this article, we explain how we developed the game, its theoretical underpinnings, and why it’s a flexible workshop for a variety of audiences.  相似文献   

Quality flaw prediction in Spanish Wikipedia: A case of study with verifiability flaws     

Edgardo Ferretti  Leticia Cagnina  Viviana Paiz  Sebastián Delle Donne  Rodrigo Zacagnini  Marcelo Errecalde 《Information processing & management》2018,54(6):1169-1181

In this work, we present the first quality flaw prediction study for articles containing the two most frequent verifiability flaws in Spanish Wikipedia: articles which do not cite any references or sources at all (denominated Unreferenced) and articles that need additional citations for verification (so-called Refimprove). Based on the underlying characteristics of each flaw, different state-of-the-art approaches were evaluated. For articles not citing any references, a well-established rule-based approach was evaluated and interesting findings show that some of them suffer from Refimprove flaw instead. Likewise, for articles that need additional citations for verification, the well-known PU learning and one-class classification approaches were evaluated. Besides, new methods were compared and a new feature was also proposed to model this latter flaw. The results showed that new methods such as under-bagged decision trees with sum or majority voting rules, biased-SVM, and centroid-based balanced SVM, perform best in comparison with the ones previously published.  相似文献   

Genetic Polymorphism of Angiotensin II Type 1 Receptors and Their Effect on the Clinical Outcome of Captopril Treatment in Arab Iraqi Patients with Acute Coronary Syndrome (Mid Euphrates)     

Fadhaa A. Ghafil  Bassim I. Mohammad  Hussain S. Al-Janabi  Najah R. Hadi  Hayder A. Al-Aubaidy 《Indian journal of clinical biochemistry : IJCB》2021,36(1):81

Genetic variation in the angiotensin II type 1 receptor (AT1R) has an important effect on the outcome of acute coronary syndrome (ACS) initiated treatment with captopril. This study aims to investigate the impact of genetic polymorphism of AT1R (rs5186 and rs275651) on the ACS outcome in Iraqi patients treated with captopril. A total of 250 Iraqi individuals with ACS were included in this case—control study and they were divided into two study groups; Study group 1 included 125 participants who were prescribed captopril, 25 mg twice daily and study group 2 included 125 participants who received no captopril as part of their ACS treatment (control study). The AT1R gene (rs5186) CC genotype was found to be associated with ST-elevation myocardial infarction (STEMI) (Odd’s ratio (O.R) = 1.2, P = 0.7), while AC was associated with Non-ST-elevation myocardial infarction (NSTEMI) and unstable angina (UA) (O.R = 1.2, P = 0.8). AC genotype is more prone to have Percutaneous coronary intervention (PCI) after ACS attack (O.R = 1.2, P = 0.6). CC genotype had a risk to get less improvement (O.R = 1.6, P = 0.5), so might require higher doses of captopril during acute coronary insult. The AT1R gene (rs275651) AA genotype was associated with UA (O.R = 1.3, P = 0.9). AA and AT genotypes were more prone to have PCI after ACS attack (O.R = 3.9 P = 0.2, O.R = 3.5, P = 0.3 respectively) and thus requiring higher doses of captopril. We conclude that the AT1R rs5186, rs275651 genetic polymorphisms might partially affect the clinical outcome of ACS patients treated with captopril and might have captopril resistance which requires higher doses.  相似文献   

图书情报学领域学科交叉及其国家差异的动态分析     

王思茗  滕广青 《图书情报知识》2020,(3):109-118,F0003

[目的/意义]领域知识的跨学科交叉研究能够打破学科间的壁垒,有助于发现重大科学问题的解决方案。[研究设计/方法]基于图书情报学领域文献题录信息构建轻量级领域知识图谱,从中提取学科信息、国家信息、时间信息及其关联,采用时间与空间相结合的多维度分析方法,对学科交叉的演化进程以及国家差异进行跟踪与分析。[结论/发现]图书情报学领域内学科交叉现象日渐显著,各国家的学科交叉程度与倾向存在差异,一些目前尚不突出的交叉学科方向值得关注。[创新/价值]采用多维度视角分析学科交叉现象,相关结论可以为国家科技战略制定及学科发展规划提供有益参考。  相似文献   

区域协同发展战略下京津冀体育产业一体化发展研究     

李艳荣  张长念 《广州体育学院学报》2019,(1):40-44

推动京津冀体育产业一体化发展，既是推进京津冀协同发展的重要内涵，也是体育领域落实区域协调发展战略的具体实践。研究表明，京津冀体育产业一体化发展，既面临难得的历史机遇，也面临着严峻的挑战。挑战在于：整体发展失衡，结构亟待优化；市场发育不足，行业竞争加剧；资源环境恶化，低碳锁定障碍；顶层设计不足，合作机制缺失。基于区域协调发展战略，应优化空间布局，推动体育产业错位发展；培育消费市场，推动体育产业创新发展；加快转型升级，推动体育产业低碳发展；完善合作机制，推动体育产业协同发展。  相似文献   

上海市黄浦区社会体育组织培育现状及转型发展研究          下载免费PDF全文

战旗  王海银  刘忠亚  孟欢欢 《体育科研》2020,(1):69-74

采用文献资料法、访谈法等,了解到上海市黄浦区政府培育社会体育组织发展的现状以及存在的问题,提出针对性的发展路径。研究表明:经过阶段性的培育,目前上海市黄浦区社会体育组织结构较完整,规模初现,功能呈现多元化,制度建设日益完善,监督评估机制雏形初显;但培育过程中存在着党建嵌入不足,培育主体较为单一,培育体制机制不完善,培育制度保障体系不健全等问题。提出培育路径:创新党建嵌入方式,实行组织党建工作制度化;搭建组织服务平台,拓宽组织准入范围;分类、分阶段针对性的培育,健全培育体制机制;完善组织制度建设,提升组织服务能力。  相似文献   

基于知识图谱的我国公共体育服务研究可视化分析     

易军 《吉林体育学院学报》2020,(1):21-29

以中国知网所收录的2007年至2017间核心期刊中有关公共体育服务文献题录作为分析数据样本,对所搜集到的254篇文献进行可视化分析。借助CiteSpace V软件,运用文献计量学方法与内容分析方法,结果表明:近十年我国公共体育服务研究经历了波浪式增长与急速增长两个阶段,研究主题紧密结合国家政策战略,在不断调整中推动了公共体育服务的发展。主要特征体现在始终服务于国家宏观政策方针,顺应了政府职能转变下对体育发展改革的时代需求;以“体育管理、公共服务”为核心的研究主题始终贯穿,主动融入政策响应的研究诉求强烈,人民美好生活中体育需求的关照不足;整个研究过程充满了动态性与局限性。未来研究应坚持与国家公共服务政策相伴相生,形成开放性反馈研究系统;注重公共体育服务研究的政策引领和政策的事后绩效评估;打造学术共同体,提升公共体育服务研究成果在政策咨询和智库建设中的作用。  相似文献   

可持续发展视角下全民健身服务体系的内涵解析     

梁法泽  聂瑞莲  侯玉灵 《体育科技文献通报》2020,(1):10-12

本文以可持续发展为视角,阐述了可持续发展视角下全民健身服务体系内涵。利用文献资料法、实地考察法及专家访谈法,对可持续发展视角下全民健身服务体系发展现状进行了简单分析。进一步探究了可持续发展视角下全民健身服务体系建设路径,以期为可持续发展视角下全民健身服务体系建设提供有效的借鉴。  相似文献