Fatigue increases ankle sprain risk in badminton players: A biomechanical study     

Alexis Herbaut  Julien Delannoy 《Journal of sports sciences》2020,38(13):1560-1565

ABSTRACT

Ankle sprains are the most common injury in regular badminton players and usually occur at the end of a match or training. The purpose of the present study was to examine the influence of fatigue produced by badminton practice on the lower limb biomechanics of badminton players. It was hypothesized that fatigue induces ankle kinematic and lower leg muscle activity changes which may increase the risk of ankle sprain. Ankle kinematics, ankle kinetics and muscles activities of 17 regular badminton players were recorded during lateral jumps before and after an intense badminton practice session. Post-fatigue, ankle inversion at foot strike and peak ankle inversion increased (+2.6°, p = 0.003 and +2.5°, p = 0.005, respectively). EMG pre-activation within 100 ms before foot landing significantly decreased after fatigue for soleus (?23.4%, p = 0.031), gastrocnemius lateralis (?12.2%, p = 0.035), gastrocnemius medialis (?23.3%, p = 0.047) and peroneus brevis (?17.4%, p = 0.036). These results demonstrate impaired biomechanics of badminton players when fatigue increases, which may cause a greater risk of experiencing an ankle sprain injury.  相似文献   

The effects of school-based physical activity interventions on students' health-related fitness knowledge: A systematic review     

《Educational Research Review》2015

This systematic review includes 34 studies examining the effects of school-based physical activity interventions on students' health-related fitness knowledge. The study design, methodological quality, and effectiveness of interventions on students' health-related fitness knowledge were analysed. The majority of the studies (79.4%) revealed significant positive intervention effects on students' health-related fitness knowledge. Studies examining adolescents were more frequently in a position to influence students' health-related fitness knowledge (87.5%) than studies examining children (75%), and studies with low methodological quality (88.8%) had more frequent positive effects than studies with moderate quality (75%). The effects on students' health-related fitness knowledge were independent of moderator variables such as the intervention content, duration and frequency. Only few studies were able to simultaneously positively influence students' health-related fitness knowledge and students' physical activity and/or fitness levels. These programmes can positively influence students' health-related fitness knowledge, but it remains unclear what the practical significance of these changes is. Further research is needed to clarify the influence of students' health-related fitness knowledge on reflection, understanding, physical activity behaviour, and overall physical literacy levels.  相似文献   

面向新生的“微视频+代入式体验”信息素养教育研究     

洪跃 《图书情报工作》2019,63(20):88-95

[目的/意义]基于建构主义学习理论，借鉴翻转课堂先进理念，以提高个人信息素养能力的初学者为主要教育研究对象，调研分析其个性特征、信息行为和教育方式偏好。[方法/过程]通过调研分析，总结教育方式与学生需求之间的矛盾成因，提出面向新生的"微视频+代入式体验"信息素养教育创新模式，着重分析模式特点、构建策略和实施方案，并提出可行性组织策略。[结果/结论]"微视频+代入式体验"信息素养教育新模式，综合运用微视频所特有的视觉冲击力，克服教师语言抽象化的不足，同时通过代入式情境体验，完成知识吸收内化、高层次思维认知，有效提升学生的信息素养综合能力。  相似文献   

Understanding value in the student experience through student–staff partnerships     

Mollie Dollinger  Jason Lodge 《高等教育研究与发展》2020,39(5):940-952

ABSTRACT

Questions such as ‘what is value in the student experience?’ and ‘how do we measure or assess value in higher education?’ remain an under-researched area. However, in the context of marketisation and competitive forces in higher education, there is a need to unpack what is value in the student experience. In this article, a conceptualisation of value that can be applied in higher education (known as value-in-use) is introduced and applied to a specific and increasingly important aspect of the student experience – student–staff partnerships. Qualitative survey data (n?=?97) and interviews (n?=?35) from ten cases of various manifestations of student–staff partnerships in the Australasian context is presented and assessed in relation to value. The findings highlight that student–staff partnerships may enhance value in the student experience and that value-in-use may be an appropriate lens through which to continue to explore how value is created and measured in the student experience.  相似文献   

美、日、韩终身教育发展的经验及对我国的启示   总被引：2，自引：0，他引：2  

李传宝 《继续教育研究》2006,(5):33-35

建立终身教育体系已成为当今世界各国教育改革和发展的共同趋势。美国、日本、韩国等发达国家已经建立了较为完备的终身教育体系,他国在法律保证、制度保障、社会参与、资源建设等方面的即有经验,对于我国构建中国特色的终身教育体系提供了宝贵的启示。  相似文献   

TPR技术对钒系催化剂供氧活性和数目的研究     

张菊 《湖州师范学院学报》1991,(5)

本文报导了利用TPR技术研究钒系催化剂的供氧活性和数目,从而阐明了TPD平衡法的可靠性.  相似文献   

艺术的情境之寓——文艺美学探微     

宋生贵 《广播电视大学学报》2007,(2):56-59

情境者,情趣境界之谓也,主于美。它存在于艺术作品中,也存在于整个艺术审美活动中。艺术没有唯一的和绝对的摹本,也没有终级价值标准,有的便是一件件具体的作品和一次次具体的活动。一件作品就是一个独绝的情境,这情境是别人创造不出的,甚至创造者自己都是不能重复的。在此情境中,包括每一个细部,即使如绘画中的一处空白,音乐中的一个休止,小说中的一段铺垫,等等,便有着特别的意味,特别的美质。  相似文献   

“世俗”生存的长久体验与关怀－－评余德庄长篇新作《太阳雨》     

张德明 《涪陵师范学院学报》2002,18(1):41-44

余德庄长篇新作《太阳雨》，是“世俗”生存的长久体验与关怀的结晶，不仅突破了当今广泛存在的由学作品和哲学作共同营建的关于美好人生和理想生活的心造幻影，而且本身叙述的生活故事有着相当深刻的内涵。  相似文献   

论文学功能系统与特质   总被引：1，自引：0，他引：1  

金雅 《河南师范大学学报(哲学社会科学版)》2002,29(6):83-87

传统的作品功能观把本视为学功能的发生源，把读视为学功能作用的被动对象，本提出：学功能必须在具体的学活动中才能产生，学活动是学功能的发生源。学功能联系于学活动的动态开放整体的流程，并对投身于学活动的一切实践主体（作与读）产生系统效能，学功能系统由认知，净化，愉悦，生命四个各具丰富内涵的子系统构成，并通过系统质的审美化合指向人本身，指向人自身的丰富与完善，指向人的诗意人生，因此，学功能是学之人学本义的回归。  相似文献   

5-氨基四唑及其衍生物的合成和应用综述   总被引：1，自引：0，他引：1  

张苏杭  韩琳  王新德 《洛阳师范学院学报》2006,25(5):74-78

文章综述了5-氨基四唑及其4种衍生物高氯酸.四氨.双(5-硝基四唑)合钴(Ⅲ)(BNCP)、3,6-双(l-氢-l,2,3,4-四唑-5-氨基)-l,2,4,5-四嗪(BTATz)、5-氨基四唑的Schiff碱、α-(5-四唑基)氨基烃基膦酸酯的合成、性质与应用.  相似文献