单板滑雪U型场地技巧优秀运动员落地稳定性研究

近年来,随着单板滑雪U型场地技巧项目的快速发展及国际运动成绩的快速提升,我国运动员在训练方面遇到了很多问题,如运动员在完成高难度的空中技术动作后,在落地时总是出现失误,直接影响运动员在比赛中的成绩.本文采用文献资料、专家访谈、录像分析等研究方法,对黑龙江省单板滑雪U型场地技巧优秀运动员的落地稳定性进行了分析,具体涉及运动员成套动作落点分析、滑行路线分析和运动员平衡能力,研究结果认为,运动员的平衡能力差和落点区域的不同选择是导致落地稳定性差的主要原因.为帮助单板滑雪U型场地技巧项目备战2018年平昌冬奥会提供了一定的理论依据.     

Blended learning in higher education: professional development in a Hong Kong university

ABSTRACT

Online learning has become a ubiquitous part of the educational landscape and how teachers are supported in developing approaches to teaching online is a fundamental aspect of the students’ learning experience. Based on the implementation of a professional development course on becoming an online teacher offered in a blended learning mode at one university in Hong Kong, this article proposes that offering this type of professional development in a blended mode is very effective in facilitating enhanced usage of the university’s learning management system. In a blended mode, teachers are actively engaged with blended learning and were found to make more extensive use of features/tools in Blackboard after they attended the professional development course. Results support that offering professional development in a blended mode provides teachers with an authentic student perspective, at the same time as they take guided steps in the teacher’s role in blended learning.     

A new footwear technology to promote non-heelstrike landing and enhance running performance: Fact or fad?

This study sought to compare the kinetics and kinematics data in a group of habitual shod runners when running in traditional running shoes and newly designed minimalist shoes with lug platform. This novel footwear design claims to simulate barefoot running and reduce energy loss during impact. We compared footstrike angle (FSA), vertical average (VALR) and instantaneous (VILR) loading rates, energy loss and initial vertical stiffness between two shoe conditions. Runners demonstrated a decreased FSA while running in minimalist shoes with lug platform than traditional shoes (P = 0.003; Cohen’s d = 0.918). However, we did not observe a landing pattern transition. VALR and VILR between two footwear conditions showed no significant difference (P = 0.191–0.258; Cohen’s d = 0.304–0.460). Initial vertical stiffness (P = 0.032; Cohen’s d = 0.671) and energy loss (P = 0.044; Cohen’s d = 0.578) were greater when running in minimalist shoes with lug platform. The results show that minimalist shoes with lug platform reduce the FSA but may not lead to a landing pattern switch or lower vertical loading rates. Interestingly, the new shoe design leads to a greater energy loss than traditional running shoes, which could be explained by a higher initial vertical stiffness.     

基于模糊理论和大数据的医学院校学生体质健康测试结果分析

基于2014年国家最新颁布的《学生体质健康标准》和湖南省医学院校体测大数据,运用模糊理论,对其进行研究与分析。研究表明湖南省医学院校学生体质健康测试结果不太理想,主要集中在及格区域,达到优秀和良好的学生比例男生仅为1.68%、女生0.73%,且男生7.54%没有达到及格要求。     

基于学生体质健康的“阳光长跑”干预效果研究

在大学生体质健康现状的视野下,响应国家“阳光长跑”活动的政策,借鉴成功的实践经验,采用实验法,制定“阳光长跑”干预实施方案,开展研究工作.结果显示:1)大学生在4个月的“阳光长跑”活动干预下,有氧耐力、柔韧素质有显著性的变化,而速度素质、平衡能力变化不明显;2)“阳光长跑”活动干预对提高机体有氧代谢酶活性、呼吸机能、刺激腰背部、腿部肌群柔韧性有重要帮助,而对大学生腿部力量、脚踝力量、机体平衡能力的刺激较小,没有显著影响.     

Exploring inclusive pedagogical practices in Hong Kong primary EFL classrooms

Social diversity is now commonplace in many communities in today’s globalised world. This diversity can be seen in any classroom of learners, and international studies have shown the complex ways in which disabilities, race, ethnicity, gender and social class can determine a child’s opportunity to succeed or fail in the education system. In Hong Kong, like in many educational contexts around the world, teachers are grappling with increasing diversity amongst their students, including teaching students with special educational needs (SEN) and non-Chinese speaking students (NCS) living in Hong Kong. This paper examines how three primary TEFL (Teaching English as a Foreign Language) teachers are constructing identities as inclusive practitioners as they grapple with enacting the inclusive education policy recently introduced into Hong Kong schools. The data are drawn from a small-scale collaborative reflective inquiry for teacher professional development. Drawing upon a sociocultural and critical framing of identity theory, we trace the three teachers’ identity construction as EFL teachers and inclusive education practitioners. We view the role of discourse, self-positioning and social context as key processes in teacher identity formation. Implications for furthering the development of inclusive education in EFL classrooms are offered.     

The effectiveness of an adaptive digital educational game for the training of early numerical abilities in terms of cognitive,noncognitive and efficiency outcomes

Adaptive educational games provide new opportunities to train early numerical skills. However, empirical evidence for the effectiveness of adaptive educational games is scarce. This study investigated the effectiveness of an adaptive game compared to a nonadaptive game in terms of cognitive, noncognitive and efficiency outcomes. In total, 84 children were randomly assigned to a condition in which children trained early numerical skills with an adaptive version of the Number Sense Game (NSG), or to a condition in which they trained with a nonadaptive version. Early numeracy was evaluated before the training, immediately after the training and 3 weeks after the training. Math anxiety (MA) was assessed before and 3 weeks after the training. The time children practiced with the NSG was used to assess efficiency. Results revealed that children in both conditions improved on early numerical ability, with sustained effects 3 weeks after the training. In both conditions, children’s MA scores were lower after the training. Children in the adaptive condition learned more efficiently compared to the nonadaptive condition, and the interaction between prior knowledge and condition has shown that children with low prior knowledge benefited more from a nonadaptive training while children with high prior knowledge benefited more from an adaptive training in terms of learning efficiency. These results confirm that adaptive educational games can offer solace in terms of the need for differentiation.     

Globalization as Both Threat and Opportunity for the Hong Kong Teaching Profession

The paper examines the roles of theHong Kong government, schools and teachers inthe translation of global economic imperativesinto demands on education, and how suchtranslation affects the teaching profession.Two global imperatives are selected forillustration because of their peculiarforegrounding by the Hong Kong government:international (English) language proficiencyand competence in information technology. Thepaper argues that preparation for economicglobalization not only poses a threat, but alsocreates an opportunity for the development ofthe teaching profession, and that this dependsto a large extent on how the governmenttranslates these global imperatives intodemands on teachers. The government is theprincipal actor in the selection andtranslation of global imperatives. Schools arenot just brokers and enforcers of governmentpolicy, but can be an important buffer betweenthe government and teachers by helping themcope with the imposed imperatives at the schoollevel. Teachers can be key players in acceptingor rejecting such imperatives. Governmentstrategies that are insensitive to teachers'needs and practical concerns create moreproblems than solutions.