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   

A Typology of State Financial Aid Grant Programs Using Latent Class Analysis     

Custer  Bradley D.  Akaeze  Hope O. 《Research in higher education》2021,62(2):175-205

Research in Higher Education - State financial aid grant programs are commonly categorized as either need-based, merit-based, or both, but their initial eligibility requirements include many more...  相似文献   

现阶段国内U-15少年足球守门员防守技术运用情况调研   总被引：1，自引：0，他引：1  

张强  杨跃飞  于永安  宫鲁农 《中国体育科技》2003,39(4):33-35

运用临场观察、访谈、文献资料调研以及逻辑分析等研究方法 ,对现阶段国内U 15少年足球守门员防守技术运用情况进行统计与分析研究。研究表明 ,少年足球守门员防射门球的预测判断能力不足 ,导致选位差、反应慢和接球易脱手 ,防守的成功率低 ;出击时机把握不好 ,对抗条件下难以有效发挥位置优势 ,强干扰下争夺球失误多。加强足球意识与心理培养 ,提高反应和接球动作质量要求是加强少年足球守门员水平稳定的重要环节。  相似文献   

依托油脂行业 办好《中国油脂》   总被引：3，自引：1，他引：2  

蒋新正  鲍元奇  刘世鹏  贺敏  潘亚萍  武丽荣 《编辑学报》2003,15(5):379-380

介绍《中国油脂》依托油脂行业，办好期刊的做法和体会。  相似文献   

电大生《经济数学基础》课程学习困难的成因分析   总被引：1，自引：0，他引：1  

潘红卫 《广西广播电视大学学报》2003,14(4)

本文对电大生《经济数学基础》课程学习困难的成因进行了分析,并对教师在该课程教学中要注意的问题提出了几点建议。  相似文献   

新形势下高校篮球教学改革的思路   总被引：8，自引：1，他引：7  

潘前  朱俊荣 《福建体育科技》2003,22(2):54-56

本文面对高校扩大招生和高校篮球文化的迅猛发展 ,以及上篮球课的学生人数逐年大幅度增加的新形式 ,探讨并提出了教学目标注重兴趣、习惯和能力培养 ,练习要求弹性化 ,知识传授实践化 ,测评方法综合化、团体化 ,准备活动专项化 ,按水平分组练习 ,教学内容精简化、实用化以及练习手段娱乐化、健身化等篮球教学改革的思路。  相似文献   

Retaking departments     

James D. Preston  Graves E. Enck 《Academic Questions》1992,5(1):70-74

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A New Approach to Quality Assurance for Higher Education     

James D. T. Tannock 《Higher Education Quarterly》1992,46(1):108-123

This article describes the Engineering Professors' Conference (EPC) approach to quality assurance for Higher Education Institutions, which is currently the only formalized alternative to British Standard 5750 'Quality Systems'. The EPC approach is based on principles of quality assurance and Total Quality Management which have been developed in industry. These ideas are briefly outlined, and an opinion expressed on the interpretation and application of BSS7S0 for HE. The EPC model is explained, illustrated with example elements taken from the EPC Specification and Guidelines for Quality Assurance in Higher Education. A top-down approach to the development of an institutional quality system is described, based on a quality policy statement. Areas of activity which have an important impact on the quality of education are identified, emphasising the quality assurance requirements of academic departments. Supporting and administrative quality system requirements are also described, as these also play an important role in the quality of education. Formal quality procedures and documentation in key areas are proposed.  相似文献   

Special issue on Peer Review of Teaching     

Ronald D. Simpson 《Innovative Higher Education》1996,20(4):219-220

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应重视短距离速滑运动员的有氧能力训练   总被引：4，自引：4，他引：0  

潘业福  张利群 《冰雪运动》2001,(3):11-11

通过分析王曼丽运动成绩提高的原因，指出了有氧能力的提高所起的作用，并介绍了王曼丽有氧能力训练的方法，阐明了必须重视短距离速滑运动员的有氧能力训练，才能使达到一定程度的运动水平得到进一步地提高。  相似文献