Role of objectively measured sedentary behaviour in physical performance,frailty and mortality among older adults: A short systematic review     

Asier Mañas  Borja del Pozo-Cruz  Francisco José García-García  Amelia Guadalupe-Grau 《European Journal of Sport Science》2017,17(7):940-953

Sedentary behaviour (SB) has recently emerged as an independent risk factor for different health outcomes. Older adults accumulate long time in SB. Understanding the role that SB plays on health is crucial for a successful aging. This short systematic review summarizes the current evidence related to the effects of objectively measured SB on frailty, physical performance and mortality in adults ≥60?years old. The literature search produced 271 records for physical performance (n?=?119), frailty (n?=?31), and mortality (n?=?121). Finally, only 13 articles fulfilled the inclusion criteria and were included in this review. All articles but one included in the physical performance section (n?=?9) showed a negative association between longer time spent in SB and physical performance. A significant association of SB with higher odds of frailty was found, however this association disappeared after adjusting for cognitive status. Lastly, two of the three included studies showed positive associations between SB and mortality, but this effect decreased or even disappeared in the more adjusted models. In conclusion, there is consistency that SB is negatively associated with physical performance. However, the relationship between objectively measured SB and frailty incidence and mortality rates remains unclear and deserves further research. The use of homogenous criteria to assess SB and the inclusion of more robust research designs will help clarifying the independent effects that SB could have on physical performance, frailty, and mortality. This will ultimately help designing more efficient and comprehensive physical activity guidelines for older adults.  相似文献   

Teacher-Directed Learning Approaches and Science Achievement: Investigating the Importance of Instructional Explanations in Australian Schools     

Cairns  Dean  Areepattamannil  Shaljan 《Research in Science Education》2022,52(4):1171-1185

Research in Science Education - This study investigated the relationships of teacher-directed approaches with science achievement in Australian schools. The data for this study were drawn from the...  相似文献   

Youth,arts, and education: reassembling subjectivity through affect     

Allyson Dean 《Gender and education》2016,28(7):959-960

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Understanding young Chinese Australian's (dis)engagement in Health and Physical Education and school sport     

Bonnie Pang  Doune Macdonald 《Physical Education & Sport Pedagogy》2016,21(4):441-458

Background: School Health and Physical Education (HPE) and sport has increasingly become a complex cultural contact zone. With global population shifts, schools need policies and strategies to attend to the interests and needs of diverse student populations. School HPE and sport is a particularly significant site as it is a touchpoint for a range of cultural values and practices related to physical activity, the body, health and lifestyle proprieties.

Purpose: While there is a high Chinese student population in Australian schools, little research has been undertaken to understand their needs, experiences and perceptions in schools HPE and sport. In addition, research in the physical activity field is accentuated by paradigms that assume and perpetuate the binary notion of cultural beliefs and practices such as ‘West’ versus ‘East’ and in association with ‘Normal’ versus ‘Problematic’ lifestyles in relation to physical activity. We argue that, without conceding the epistemological understanding of ‘difference’, policies and practices that promote diversity can remain socially unjust and superficial.

Research design: This paper focuses on two schools in Queensland. The data collection process was underpinned by critical and interpretive ethnographic methods. The participants in Sage College consisted of seven girls of whom three were in Year 8, three in Year 9 and one in Year 10. At Routledge State High, a state-owned, secular and coeducational secondary school, the cohort consisted of two girls in Year 8, one girl and two boys from Year 9.

Results: This paper draws on Bourdieu's concepts of habitus, capital, field and doxa and the Chinese Confucianism philosophy of ‘Complementary difference’ to understand the various perceptions and experiences of young Chinese Australians in schools HPE and sport. Results invite us to seek an understanding of students’ subjectivities and disrupt the binary differences in cultural values and attributes to promote multicultural education.

Conclusion and recommendation: Moving beyond the Australia's Anglo-Celtic centred HPE and the limitations of a Western view of exclusive opposites, this paper makes an original contribution to knowledge by presenting a ‘heuristic of difference’ model that accommodates Western and Chinese perspectives in Australian HPE research.  相似文献   

‘Tours of Imperialism’: Cricket and Cultural Transfer in South Africa, 1880–1910     

Dean Allen 《国际体育史杂志》2016,33(15):1717-1729

Abstract

Few can deny the significance of sport in today’s South Africa. The sporting structures upon which this is based were first introduced to the country by the British in the late nineteenth century. In line with policies of cultural imperialism, sports such as cricket were promoted at this time as part of a wider political agenda that encouraged the adoption of an ‘English’ way of life in the region. Sports tours, most notably cricket, were a fundamental part of this cultural transfer between the ‘Mother Country’ and her colonies in Southern Africa. To underpin the study of transnational linkages and transfer in African sports, this paper will offer an historical overview of how ‘British-styled’ sport arrived in South Africa and how the early cricket tours between England and South Africa were constructed to promote distinct political and cultural connections. This paper will explore the early development of cricket in South Africa and investigate its symbiotic link to British imperialism and colonialism via the first tours and sporting exchanges that took place. The origins of the game in South Africa will be examined as well as its development up to 1910 (the date of Union in South Africa) as the site of a constructed transnational 'brotherhood' between Britain and its most coveted African colonies.  相似文献   

Managing physical education lessons: an interactional approach     

Dean Barker  Claes Annerstedt 《Sport, Education and Society》2016,21(6):924-944

Physical education (PE) lessons involve complex and dynamic interactive sequences between students, equipment and teacher. The potential for unexpected and/or unintended events is relatively large, a point reflected in an increasing amount of scholarship dealing with classroom management (CM). This scholarship further suggests that unexpected and disruptive events negatively impact on learning and can have deleterious effects on teacher health. Despite considerable potential for these kinds of events, many PE lessons occur in structured, organized ways. The broad purpose of this paper is to consider how classroom action becomes ordered in PE contexts. To this end, an interactional approach is put forward including the specific analytic concepts of directives, epistemic authority and deontic authority. To exemplify the approach, the micro-dynamics of a situation in which a group of students are building a human pyramid is examined. The examination draws attention to: how the teacher engages in a series of interactions with the students to move the sequence forward; how the students themselves achieve order through their interactions with one another; and how the characteristics of the activity help to organize the students' behaviors and limit possibilities for action. The discussion is located against a backdrop of current CM scholarship. Reference is also made to two aspects of social context: the increasing prominence of managerial discourse in educational arenas and the significance of student-centeredness in pedagogical theory. Both aspects appear to influence how order can be achieved in PE today. The analysis raises issues related to pedagogy, management and authority which are addressed in the final two sections of the paper.  相似文献   

Improving content area reading comprehension of Spanish speaking English learners in Grades 4 and 5 using web-based text structure instruction     

Kausalai Wijekumar  Bonnie J. F. Meyer  Puiwa Lei  Anita C. Hernandez  Diane L. August 《Reading and writing》2018,31(9):1969-1996

Reading and comprehending content area texts is important for academic and professional success as well as life skills necessary to maintain good health and quality lifestyle. Spanish speaking English language learners have shown poor performance on high-stakes assessments in reading comprehension. The number of Spanish speaking English learners (ELs) in our schools continues to increase at a fast pace, and therefore it is imperative that we address their reading comprehension needs swiftly and effectively. The text structure strategy has shown positive results on comprehension outcomes in many research studies with students at Grades 2, 4, 5, and 7. This study is the first implementation of instruction about the text structure strategy expressly designed to accommodate the linguistic and comprehension needs of Spanish speaking ELs in Grades 4 and 5. Strategy instruction on the web for English learners (SWELL) was designed to deliver instruction about the text structure strategy to Spanish speaker English learners. A randomized controlled study with pre and post-tests was conducted with 14 classrooms at fourth-grade and 17 classrooms at fifth-grade in high poverty schools where over 85% of students were Spanish speaking bilinguals or ELs. Analysis of data using multi-level models show moderate to large-effects favoring the students in the SWELL classrooms over the business as usual control classrooms on important measures such as a standardized reading comprehension test and main idea and cloze tasks. This research has practical implications for the use of web-based tools to provide high-quality and supportive instruction to improve Spanish speaking ELs reading comprehension skills.  相似文献   

当"雪球"融化时     

邦尼·康普顿·汉森  张宪宝 《海外英语》2004,(6):20-21

我们常常会为那些动人的爱情故事感动得落泪,也常常会感慨生活的造化弄人。其实爱情,不仅仅只限于人类,天鹅从一而终的绝唱的令人唏嘘。本文的两只可爱的小鸟,也向我们展示了爱情美好而动人的一面。  相似文献   

The Law of Unintended Consequences: The ‘Real’ Cost of Top-Down Reform     

Dean Fink 《Journal of Educational Change》2003,4(2):105-128

In most jurisdictions around the world,governments, in the name of economiccompetitiveness, have imposed comprehensive andquite dramatic changes on state schools. Mostchanges require a more centralized and rigorouscurriculum for pupils, a plethora ofaccountability measures and mandatoryin-service for teachers, and carefully definedand more onerous responsibilities for schoolleaders. The province of Ontario is nodifferent. Since 1995, its educational systemhas experienced quite revolutionary changes– all instituted with break-neck speed. At thesame time most schools in Ontario are employinginternal change strategies to address theseoutside pressures. These change forces havecoalesced to redefine the work and lives ofteachers and school leaders in many intendedand unintended ways. There is a substantialliterature on both external and internal changeforces, but very little has been written aboutthe conjunction of these change forces with thepersonal side of change for teachers andleaders. Based on two studies undertaken by theInternational Centre for Educational Change atthe Ontario Institute for Studies inEducation/University of Toronto, this paperexamines the unintended consequences of thesechange forces on the teachers and principals ofone secondary school in Ontario, Canada. Theteachers and leaders of Lord Byron High Schoolare not averse to change and are generallyquite content to do whatever is in the bestinterests of their students. The school has along history of innovation and change and areputation for attending to a wide diversity ofstudent needs.Through the use of multiple conceptual lenses,this paper addresses the unintendedconsequences of systemic change to the schooland its teachers and principals. At a time whenteacher shortages and teacher morale aregrowing problems for many educationaljurisdictions, this investigation will point toan urgent need to build better bridges ofunderstanding between policy makers and policyimplementers, and for researchers to provideresearch that is more sensitive to the work andlives of real people in real schools.  相似文献   

用法治理性建构校园和谐   总被引：7，自引：0，他引：7  

秦惠民 《教育研究》2005,(9)

建设校园和谐关系,以法治理性的价值判断和价值选择审视并优化校园环境,是坚持以人为本、以民主法治原则建设校园和谐关系的关键所在。以民主法治原则构建现代校园和谐关系是法治理性的基本要求;尊重人权是法治理性的真谛;校园和谐需要法治理性的宽容精神;法治理性包含对法制的敬畏和行使自由权利的节制;校园和谐关系呼唤体现法治理性的校园文化。学校教育通过尊重和保护青年学生的正当权利并使其自觉践行义务的过程,使他们长期浸润在崇尚法治的文化氛围里,培养并形成他们未来人生中自觉的、理性的遵纪守法和护法精神。  相似文献