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   

现阶段国内U-15少年足球守门员防守技术运用情况调研   总被引：1，自引：0，他引：1  

张强  杨跃飞  于永安  宫鲁农 《中国体育科技》2003,39(4):33-35

运用临场观察、访谈、文献资料调研以及逻辑分析等研究方法 ,对现阶段国内U 15少年足球守门员防守技术运用情况进行统计与分析研究。研究表明 ,少年足球守门员防射门球的预测判断能力不足 ,导致选位差、反应慢和接球易脱手 ,防守的成功率低 ;出击时机把握不好 ,对抗条件下难以有效发挥位置优势 ,强干扰下争夺球失误多。加强足球意识与心理培养 ,提高反应和接球动作质量要求是加强少年足球守门员水平稳定的重要环节。  相似文献   

培养学生运动技能学习策略的实验报告     

张绍礼  吴秀峰  杨丹  杨明  江志强 《沈阳体育学院学报》2003,(1):60-62

运用学习策略理论 ,并结合运动技能学习的特点 ,在田径技术教学中对运动系 2 0 0 1级学生进行了教学实验 ,初步得出以下结论 :在学习运动技能过程中施加学习策略训练有助于学生掌握运动技术 ;在培养学生运用学习策略的能力方面 ,语言法、调控法、认知体验三项指标得到明显改善 ,学习策略能力的培养是一个长期的过程。  相似文献   

浅谈气步枪比赛中的节奏     

谢国卿 《体育科研》2003,24(4):41-42

通过对上海市天山中学部分运动员参加上海市第十二届运动会气枪比赛前后经过的回顾和分析,认为气步枪比赛中存在的一个节奏现象是影响运动员技术水平和心理状态的重要因素,也就是最终影响成绩的重要因素.  相似文献   

冬泳对人体健康的影响   总被引：5，自引：0，他引：5  

滕青  姚峰 《中国体育科技》2003,39(11):61-63

通过对 6 0名男子冬泳爱好者的问卷调查、生理指标测试和文献资料调研 ,探讨冬泳对人体健康的影响。结果表明 ,长期冬泳有助于增强人体肌肤的反应能力 ,不同程度地改善心肺功能和增强心血管系统机能 ,增强人体生理调节能力和对外界环境变化的适应能力 ,从而提高人体健康水平。  相似文献   

对影响青少年业余游泳运动员赛中心理状态的因素分析     

徐燕军  姜玲 《体育科技》2003,24(3):36-39

运用文献法、问卷法、类比法、分析与综合法 ,对青少年业余游泳运动员赛中心理状态因素进行了研究与分析。结果表明 ,环境因素和动机因素是主要影响青少年业余游泳运动员赛中心理状态的因素 ,针对这两个因素从环境适应能力和动机方面的主要表现出发 ,对赛中心理反应进行分类说明 ;同时给教练员提出了一些平时训练和赛前调节运动员心理的措施和方法 ,并指出了形成最佳临场状态的方法。  相似文献   

青少年篮球运动员基本技战术调练中的几个问题   总被引：3，自引：0，他引：3  

胡亚丽 《沈阳体育学院学报》2003,(3):109-110

通过调研和资料分析 ,指出我国青少年篮球运动员基本技战术训练中存在的主要问题是教练员对基本技术动作训练要求不严等 ,并提出相关解决方法 ,供同行参考。  相似文献