Validity and reliability of a linear positional transducer across commonly practised resistance training exercises     

Harry F. Dorrell  Joseph M. Moore  Mark F. Smith  Thomas I. Gee 《Journal of sports sciences》2019,37(1):67-73

This study investigated the validity and reliability of the GymAware PowerTool (GPT). Thirteen resistance trained participants completed three visits, consisting of three repetitions of free-weight back squat, bench press, deadlift (80% one repetition maximum), and countermovement jump. Bar displacement, peak and mean velocity, peak and mean force, and jump height were calculated using the GPT, a three-dimensional motion capture system (Motion Analysis Corporation; 150 Hz), and a force plate (Kistler; 1500 Hz). Least products regression were used to compare agreeability between devices. A within-trial one-way ANOVA, typical error (TE; %), and smallest worthwhile change (SWC) were used to assess reliability. Regression analysis resulted in R² values of >0.85 for all variables excluding deadlift mean velocity (R² = 0.54–0.69). Significant differences were observed between visits 3-2 for bench press bar displacement (0.395 ± 0.055 m; 0.383 ± 0.053 m), and deadlift bar displacement (0.557 ± 0.034 m; 0.568 ± 0.034 m). No other significant differences were found. Low to moderate TE (0.6–8.8%) were found for all variables, with SWC ranging 1.7–7.4%. The data provides evidence that the GPT can be used to measure kinetic and kinematic outputs, however, care should be taken when monitoring deadlift performance.  相似文献   

循证医学和医学论文中统计学问题编辑鉴定的必要性   总被引：11，自引：4，他引：7  

杨扬  沈志超 《编辑学报》2001,13(2):77-78

介绍循证医学这一新兴学说及其对21世纪临床医学的影响，指出为适应这一转变，开展医学论言语中统计学问题的编辑鉴定研究的必要性，开展此项研究可以：1）普及医学统计知识，2）提高临床与科研水平，3）提高作者撰写与阅读能力，4）提高医学期刊质量，5）丰富编辑学研究的内涵，并指出了编辑鉴审研究的初步思路。  相似文献   

积极顺应时代需要 加快培养创新人才     

李飞 《江苏广播电视大学学报》2001,12(1):76-78

要培养和造就适应时代发展需要的创新人才，就必须更新教育观念，确立以创新为核心的教育思想，突破旧的教学模式，构建以培养人的创新精神和创新能力为基本价值取向的新的教育体系。本文结合《地基有基础》课程教学实践，探讨顺应时代发展需要、树立创新教育思想、实施创新教学、培养创新人才的做法。  相似文献   

基于分类目录的元搜索引擎模型的提出与实现   总被引：6，自引：0，他引：6  

夏祖奇  黄水清  赵展春 《情报学报》2003,22(1):27-31

本文首先给出了搜索引擎的定义、工作机制及分类 ,并指出了目前搜索引擎的不足 ,针对这些不足提出了几点改进意见 ,实现了一种基于分类目录的元搜索引擎。最后对该搜索引擎进行了评估和展望  相似文献   

论数字图书馆基于内容的多媒体数据查询和检索技术   总被引：8，自引：0，他引：8  

赵一丹 《中国图书馆学报》2001,27(3)

数字图书馆基于内容的检索 (CBR) ,是指根据媒体对象的语义和上下文联系进行检索 ,它具有从媒体内容中提取信息检索和大型数据库 (集 )的快速检索等特征。基于内容的多媒体数据查询主要提供两种形式的查询说明 :示例查询说明和表格说明。图 1。参考文献 6。  相似文献   

油画材料技法及其再认识     

吴东弓 《华侨大学学报(哲学社会科学版)》2001,(2):108-113

现代油画家与古代大师的显不同在于；古代大师对使用的材料工具了如指掌，而现代画家却知之甚少。本从理论上剖析油画材料的性能和特点，阐述了油画材料技法的原则及其关键问题－－光泽度、干燥速度、胶油混合技法，并指出现代油画材料技法运用所存在的新问题，对材料技法的再认识将有助于中国油画艺术的发展。  相似文献   

一种网上电子投搞系统的设计与实现   总被引：11，自引：5，他引：6  

毛承洁 《编辑学报》2001,13(2):107-108

利用ASP技术为《工业工程》杂志开发了一种网上电子投稿系统，作者能够通过Internet上的Web网页和E－mail投稿，缩短了稿件投寄周期，节省了时间和费用，简要介绍动态网页开发技术ASP，并详细阐述网上电子投稿系统的设计和实现过程.  相似文献   

图书馆网络信息服务管理模式析探   总被引：1，自引：0，他引：1  

豆洪青 《图书情报工作》2006,50(2):87-89

从点、线、面的角度，分别论述图书馆网络信息服务管理的三种基本模式——点状管理模式、线性管理模式、网状管理模式；在分析各模式在图书馆的应用表现形式和各自特点的基础上，提出环境管理模式是理想的图书馆网络信息服务管理模式。  相似文献   

基于内容的图像检索之相关标准研究     

吴金红  张玉峰 《图书情报工作》2004,48(9):48-51

论述基于内容的图像检索(CBIR)的3类标准：图像压缩标准、查询语言和信息内容描述标准，分析其存在的问题并提出解决方法，最后重点剖析多媒体信息描述国际标准MPEG-7的内容及其在CBIR中的应用。  相似文献   

Forward view: advancing health library and knowledge services in England          下载免费PDF全文

Sue Lacey Bryant  Helen Bingham  Ruth Carlyle  Alison Day  Linda Ferguson  David Stewart 《Health information and libraries journal》2018,35(1):70-77

This article is the fourth in a series on New Directions. The National Health Service is under pressure, challenged to meet the needs of an ageing population, whilst striving to improve standards and ensure decision making is underpinned by evidence. Health Education England is steering a new course for NHS library and knowledge services in England to ensure access to knowledge and evidence for all decision makers. Knowledge for Healthcare calls for service transformation, role redesign, greater coordination and collaboration. To meet user expectations, health libraries must achieve sustainable, affordable access to digital content. Traditional tasks will progressively become mechanised. Alongside supporting learners, NHS librarians and knowledge specialists will take a greater role as knowledge brokers, delivering business critical services. They will support the NHS workforce to signpost patients and the public to high‐quality information. There is a need for greater efficiency and effectiveness through greater co‐operation and service mergers. Evaluation of service quality will focus more on outcomes, less on counting. These changes require an agile workforce, fit for the future. There is a bright future in which librarians’ expertise is used to mobilise evidence, manage and share knowledge, support patients, carers and families, optimise technology and social media and provide a keystone for improved patient care and safety.  相似文献