Does modality matter? A latent profile and transition analysis of sedentary behaviours among school-aged youth: The UP&DOWN study     

David Sánchez-Oliva  Rebecca M. Leech  Alberto Grao-Cruces  Irene Esteban-Cornejo  Carmen Padilla-Moledo  Oscar L. Veiga 《Journal of sports sciences》2020,38(9):1062-1069

ABSTRACT

The aims of this study were to identify profiles of sedentary behaviour (SB) patterns, based on leisure-time self-reported SB modalities (screen, educative, social, and relaxing) and to evaluate changes in these profiles over 2 years among Spanish youth aged 8–18 years. Latent profile analysis (LPA), a data-driven analytic approach, was used to identify groups of boys and girls (n = 1553; 48% girls; mean±SD age: 12.56 ± 2.49 y) with distinct SB profiles using the SB modalities (time/d) as input variables. Latent transition analysis, an extension of LPA that uses longitudinal data, was used to analyse 2-year changes in these profiles. At baseline, four and three SB profiles were found among boys (labelled: screen, educative, social, and relaxing) and girls (labelled: screen/social, educative, and relaxing), respectively. Overall, more girls (range: 48%-67%) had the same profile over time, than boys (40%-52%). Participants with a screen or relaxing SB profile at baseline were more likely to have an educative profile after 2 years. Youth with a social and an educative SB profile at baseline were more likely to transition to profiles characterized by higher screen and social SB, respectively. Using a novel and person-centered approach, this study identified gender-specific SB profiles that were moderately stable over time.  相似文献   

Syllable-based reading improvement: Effects on word reading and reading comprehension in Grade 2     

《Learning and Instruction》2020

This study examined the effects of a syllable-based reading intervention for German second graders who demonstrated difficulties in the recognition of written words. The intervention focused on fostering word reading via syllable segmentation. The materials consisted of the 500 most frequent syllables typically read by 6- to 8-year-old children. The aims were to practice phonological recoding, consolidate orthographic representations of syllables, and routinize the access to these representations. Compared to children randomly assigned to a wait-list group, poor readers in the treatment condition showed significant improvements in standardized measures of phonological recoding, direct word recognition, and text-based reading comprehension after the 24-session intervention. Poor readers in the treatment condition also showed greater improvements in development of word recognition compared to children with efficient word recognition skills. The results provide evidence that a syllable-based reading intervention is a promising approach to increase struggling readers’ word recognition skills, which in turn will improve their reading comprehension.  相似文献   

‘I would say nine times out of 10 they come to the LSA rather than the teacher’. The role of teaching assistants in supporting children's mental health     

Ida Conboy 《Support for Learning》2021,36(3):380-399

This research explored how seven primary school teaching assistants (TAs) experienced their role in supporting children's mental health. Interviews were analysed using Interpretative Phenomenological Analysis (IPA). The participants believed that they supported children's mental health and particularly referenced the close relationships that they formed with children. Throughout their accounts of supporting children, the TAs referenced helpful factors (e.g. support from other staff) and challenges (e.g. hierarchy) within the school system. Supporting children’s mental health was an emotional experience for the TAs; they discussed the rewarding element, however, the topic also elicited fear. The findings provide several implications for school staff and external professionals about how TAs can be supported in their role. These include involving TAs in training opportunities, providing TAs with supervision, considering communication systems in schools, and introducing a mental health policy.  相似文献   

面向幼儿发展的表现性评价实践研究     

张蕊 《科教文汇》2020,(13):151-152

本研究采用表现性评价,对x幼儿园大班一个班级39名幼儿进行为期一年的发展性评价,在真实情境中对幼儿的发展状况作出连续性评价,获悉幼儿不同阶段的发展状况,同时对评价过程进行总结和反思。  相似文献   

关于学校体育运动事故防止对策的研究--以日本的事故实际状态为线索   总被引：5，自引：0，他引：5  

孙金蓉 《湖北体育科技》2003,22(3):318-319

随着科学技术的不断进步，人们的生活水平得到了显提高。业余时间的增加，使得人们对体育运动、活动的热情不断高涨，与此同时，体育运动事故也不断增加。有鉴于此，章以日本的学校体育运动事故实际状况为线索，从防止事故发生和安全管理的观点出发，把握、分析事故发生的主要原因，并提出建议。  相似文献   

幼儿乳酸阈值及无氧阈心率的初步研究   总被引：4，自引：1，他引：3  

谭思洁  于学礼  张一兵  王佩云  张薇 《天津体育学院学报》2001,16(3):15-16

对33名幼儿乳酸阈及其心率值进行测定,结果显示:3～5岁幼儿AT时血乳酸水平显著低于成人及青少年;幼儿亚极量强度运动后乳酸峰值大多出现在负荷后1min,反映了幼儿机体代谢的特异性.此实验结果可为幼儿有关生理机能和能量代谢的研究提供参数,所测得的乳酸阈心率值将为幼儿健身、减肥、增高等运动处方中运动强度控制提供科学依据.  相似文献   

我国弱势群体诱发的危机类型与政府治理   总被引：8，自引：0，他引：8  

孔祥利  李冬梅 《陕西师范大学学报(哲学社会科学版)》2006,35(1):45-51

在我国,弱势群体主要是指国企的下岗职工、失去土地的农民、城镇的失业者和半失业者、从农村流向城市的农民工和无业者、农村的“五保户”和贫困户、城镇的贫困人口及靠政府低保生活者、农村的辍学者及在校的贫困生。按“弱势群体”诱发危机造成的结果,危机可分为贫困危机、社会秩序危机、犯罪危机和认同危机等类型。政府可以通过提供公共政策支持、整合社会力量、转变政府职能和实现自身改革、构建危机预警机制等在弱势群体诱发危机的治理中发挥主导性作用。  相似文献   

对武术套路运动员运动损伤的调查分析   总被引：3，自引：0，他引：3  

王怡 《北京体育大学学报》2006,29(8):1094-1095,1101

通过对运动员损伤状况的调查分析,在对损伤部位,损伤种类,损伤原因,损伤事发季节等方面进行分析研究的基础上,提出对策与建议,力求为减少运动损伤、提高训练效果提供参考依据.  相似文献   

烟台师范学院体育教育专业学生的膳食营养情况调查     

史祝梅  王爱华  刘金玲 《山西师大体育学院学报》2004,19(3):89-91

对烟台师范学院体育教育专业80名学生的膳食营养状况进行调查。结果表明：膳食结构大致合理，多数营养素的摄入量能满足要求，但视黄醇当量、核黄素、Ca摄入量明显不足，男生抗坏血酸、Zn摄入量偏低。优质蛋白质摄入量偏低，早餐热能不足，男生能量分配基本达到要求，但女生碳水化物供能比例较低。建议应加强营养知识教育，倡导平衡膳食原则，以改进膳食结构。  相似文献   

高职院校素质教育现状的调查分析     

管文娟 《苏州市职业大学学报》2004,15(1):19-21

素质教育是当今高校教学改革的核心。本文试图通过对高职院校素质教育调查结果的分析与研究,了解如 今高职院校素质教育的现状,井针对这些现状提出相应的对策,藉此达到推进素质教育的目的。  相似文献