单侧功能性踝关节不稳者踝内外翻等速肌力研究     

张阳  张秋霞 《山西师大体育学院学报》2013,(5):118-122

目的：探讨单侧功能性踝关节不稳者踝关节内外翻肌力特征。方法：选取15名患有单侧功能性踝关节不稳的受试者为实验组,匹配15名无踝关节伤病的受试者作为对照组。采用CON—TREX多关节等速力量测试系统对其进行踝关节内外翻肌力测试。结果：不管是向心收缩还是离心收缩,实验组踝关节内外翻肌力的相对峰值力矩都要明显小于对照组;而在外内翻峰值力矩比的比较中,两组间都没有显著性差异。结论：无论是向心运动还是离心运动,功能性踝关节不稳者惠侧足的内外翻肌力都存在严重不足,明显弱于正常人,其原因可能与踝关节损伤后造成的踝关节不稳有关。  相似文献   

A 30-s Chair-Stand Test as a Measure of Lower Body Strength in Community-Residing Older Adults     

Roberta E. Rikli  William C. Beam 《Research quarterly for exercise and sport》2013,84(2):113-119

Abstract

Measuring lower body strength is critical in evaluating the functional performance of older adults. The purpose of this study was to assess the test-retest reliability and the criterion-related and construct validity of a 30-s chair stand as a measure of lower body strength in adults over the age of 60 years. Seventy-six community-dwelling older adults (M age = 70.5 years) volunteered to participate in the study, which involved performing two 30-s chair-stand tests and two maximum leg-press tests, each conducted on separate days 2–5 days apart. Test-retest intraclass correlations of .84 for men and .92 for women, utilizing one-way analysis of variance procedures appropriate for a single trial, together with a nonsignificant change in scores from Day 1 testing to Day 2, indicate that the 30-s chair stand has good stability reliability. A moderately high correlation between chair-stand performance and maximum weight-adjusted leg-press performance for both men and women (r = .78 and .71, respectively) supports the criterion-related validity of the chair stand as a measure of lower body strength. Construct (or discriminant) validity of the chair stand was demonstrated by the test's ability to detect differences between various age and physical activity level groups. As expected, chair-stand performance decreased significantly across age groups in decades–from the 60s to the 70s to the 80s (p < .01) and was significantly lower for low-active participants than for high-active participants (p < .0001). It was concluded that the 30-s chair stand provides a reasonably reliable and valid indicator of lower body strength in generally active, community-dwelling older adults.  相似文献   

The 1980 C. H. McCloy Research Lecture: Psychophysiology of Self-Awareness during Vigorous Physical Activity     

William P. Morgan 《Research quarterly for exercise and sport》2013,84(3):385-427

The aim of this study was to compare the effects of physical practice with PETTLEP-based (Physical, Environment, Task, Timing, Learning, Emotion and Perspective; Holmes &; Collins, 2001) imagery and PETTLEP + physical practice interventions on golf bunker shot performance. Thirty-two male county- or international-level golfers were assigned to one of four groups; PETTLEP imagery, physical practice, PETTLEP + physical practice, or control. The PETTLEP imagery group imaged 15 bunker shots, their interventions incorporating PETTLEP components, such as physical, environment, and emotion, twice a week. The physical practice group physically performed their 15 bunker shots twice per week; the PETTLEP + physical practice group performed PETTLEP imagery once per week and physical practice once per week. Each group performed their respective tasks for 6 weeks. Pre- and posttests consisted of 15 bunker shots, with points awarded according to the ball proximity to the pin. All groups improved significantly (p < .01) from pre- to posttest, and the PETTLEP + physical practice group improved more (p < .05) than the PETTLEP and physical practice groups. However, there was no significant difference between the physical practice and PETTLEP groups (p > .05). Findings, therefore, support the effectiveness of PETTLEP in enhancing golf performance, especially when combined with physical practice.  相似文献   

语篇功能中的特征性主位分析     

谢美蓉 《江西师范大学学报(哲学社会科学版)》2012,45(4):137-140

系统功能语言学中语篇功能的一个重要部分是主位结构。本文以韩礼德(Halliday)的系统功能语法理论为基础,从构成、构成成分的功能意义以及结构特征等方面探讨了仅具有主位特性却不能穷尽小句主位潜势的特征性主位的相关情况,彰显其"形式是意义的体现"的语言观。对特征性主位的结构分析有助于更好地理解语篇。  相似文献   

本土化视角下我国社会工作伦理探讨     

李清昕  余冲 《佳木斯教育学院学报》2012,(7):1-2,6

社会工作自西方传入我国,恰逢我国社会转型时期,恰好回应了社会对社会工作专业人才的需求。但是,不可否认社会工作教育在中国的发展仍受到很多限制。本文在梳理社会工作伦理的概念和特点的基础上,重点讨论了本土化社会工作伦理面临的困境,即专业伦理与工作者个人价值、工作者个人价值与案主的价值、社会工作者的专业困境以及专业伦理与社会价值的困境,并提出了从由政府提供必要的资助或者购买服务、拓展专业服务的发展空间、加快第三部门发展以及由社工组织来提供专业服务等方面的具体实践来解决的策略。  相似文献   

系统功能语法理论指导下的商务英语听说语篇分析     

李太珠 《佳木斯教育学院学报》2012,(8):297-297

系统功能语言学把商务英语听说语篇视作表达意义的系统和资源,认为其语篇、语言特点由其所要实现的功能决定的,商务英语听说语篇也有其三大纯理功能。实践证明,运用系统功能语言学理论来分析商务英语听说语篇有利于较好地揭示语篇特点并解释出现这些特点的原因。  相似文献   

领属性致使句的句法分析     

熊仲儒 《安徽师范大学学报(人文社会科学版)》2012,40(3):359-366

"王冕死了父亲"等是领属性致使句,其中动词受致使范畴扩展,有相应的把字句,主语是致使范畴为动词选择的论元,可以关系化,也可以被转指。主语由致使范畴指派致事角色,它通过成分统制跟役事的领属者建立领属关系。有领属关系的两个成分不一定构成结构体,它们可以是非连续成分。动词的论元由扩展它的功能范畴选择,论元跟动词的关系可以很松散,甚至可以是另一成分的领属者。  相似文献   

中国改革情境中的全球化:中国高等教育市场化现象透析   总被引：30，自引：0，他引：30  

卢乃桂  操太圣 《北京大学教育评论》2003,1(1):48-53,62

作为全球性教育改革之特质的教育市场化现象在中国高等教育领域已经出现 ,但其与主流市场化理论强调的“市场进入伴随着政府退出”的主张并不一致。相反 ,市场只是国家更有效管理教育的一种工具。本文从全球化与本土化辩证关系的理论架构出发 ,重新审视了中国高等教育市场化现象 ,认为上述特点是由当前中国事业部门改革所需的两个基本前提条件所决定的 ,即一方面要满足市场经济体制改革的需要 ,另一方面又要维护政治稳定  相似文献   

新专业建设中困难及对策探讨     

李强  张少雄  霍倩  汤劲松 《柳州师专学报》2013,(4):110-111,131

探讨了新专业建设中的特色定位,并对新专业建设中的师资队伍建设、课程建设、教材建设、实验室及实习基地建设、毕业生分流中存在的困难进行了分析,探讨了解决困难的相应对策,为类似新专业建设提供参考。  相似文献   

国际化与本土化:中国大学模式的艰难选择     

王洪才 《高等理科教育》2013,(5):1-7

在全球化局势下,中国高等教育该如何发展成为一个突出的问题。中国高等教育发展既要符合中国社会发展要求,又要与世界高等教育趋势融合,这就是"中国大学模式"问题核心所在。为此出现了国际化与民族化两种不同声音,而文化本体说渐渐成为一种主导学说。然而真正的难点却在于如何借鉴国外经验和该保留哪些中国特色。这一难题考验中国大学的创造性潜力,而解答这一难题的第一责任人就是大学校长。  相似文献