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   

体育教育专业学生英语学习方式调查研究   总被引：3，自引：0，他引：3  

孟悦 《沈阳体育学院学报》2003,22(4):88-90

报告了对沈阳体育学院体育教育专业学生外语学习方式倾向的调查研究,并以问卷为研究工具。运用定量研究方法,分析了个体差异如性别、外语水平等对学生学习方式倾向的影响。结果显示学生喜欢多种外语学习方式,外语成绩优、差学生6种学习方式均无显著差异,男生比女生更喜欢听觉学习,女生比男生更喜欢视觉学习。据此提出外语教师应根据学生的认知特点灵活运用各种教学方式,并指导学生调整和扩展多种学习风格以促进教与学的协调发展。  相似文献   

网络环境下的主题标引工作   总被引：3，自引：0，他引：3  

李育嫦 《大学图书情报学刊》2003,21(1):73-75

探讨了网络环境下编目人员应如何充分利用计算机编目的特点及网络优势来做好主题标引工作，满足读检索的需要，具体做法是：转变编目思想，降低检索难度，提高标引深度，主题标引要一致。  相似文献   

新生儿窒息血糖异常50例临床分析     

马晓丹  舒蕾  王美清  黄婉云  马淑芬 《玉溪师范学院学报》2003,19(Z1):100-101

目的 :了解窒息新生儿血糖变化特点 ,为治疗提供依据 .方法 :对 1998年 1月～ 2 0 0 0年 5月收住的窒息新生儿 2 0 4例进行血糖分析 .结果 :2 0 4例中发生血糖异常 5 0例 (2 4 .5 1% ) ,其中低血糖 14例 (6 .86 % ) ,高血糖 36例 (17.6 5 % ) .高血糖的发病率明显高于低血糖的发病率 .高血糖的发生与窒息程度有关 ,重度窒息血糖水平高于轻度窒息 .结论 :对窒息新生儿应严密监测血糖 ,掌握输糖速度 ,避免血糖异常加重脑损伤 .  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   

从武术自身特性视角思考武术的推广模式   总被引：1，自引：0，他引：1  

尹海立  惠艳 《沈阳体育学院学报》2005,24(2):120-121,124

通过对武术本身特性及发展情况的研究,为武术在21世纪的发展提出了四种推广模式,即竞技武术推广模式、传统武术推广模式、武术职业化和商业化推广模式、武术养生健身推广模式。  相似文献   

对新规则下直拍进攻型打法发展趋势的研究     

赵霞  苏丕仁  张浩 《北京体育大学学报》2006,29(1):122-124

直拍进攻型打法曾经是我国乒坛的主流打法,由于缺乏创新,在近10多年一直不太景气.但是,直拍进攻型打法有其特定的优势,具有很强的抗争能力,只要创新技术、加强实力,就能登上世界乒坛的最高峰;诚然,它自身的确也存在着很多问题,加上11分赛制和无遮挡发球的实行,必定会给这种打法带来一些影响(正负双方面).因此,在新形势下对直拍进攻型打法进行进一步的深入剖析和探讨,成为我国乒坛亟待解决的课题.通过对世界优秀男子直拍进攻型打法选手的技战术进行统计与分析,并走访乒乓界权威人士和有关专家,对新规则带来的一些问题和该打法今后的发展趋势进行深入分析与探讨,为进一步提高我国直拍进攻型打法的技术水平提供科学理论和参考依据.  相似文献