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   

我国业余体育训练现状分析   总被引：2，自引：0，他引：2  

毕红星 《福建体育科技》2003,22(6):27-29

对我国青少年业余体育训练的基本现状,主要问题进行了分析,目的在于为我国业余体育训练的改革与发展提供参考依据和启示。  相似文献   

年轻运动员心理素质培养     

张敏珍 《南京体育学院学报(社会科学版)》2003,17(4):90-91

对年轻运动员常见心理障碍以及如何利用日常训练来培养他们良好的心理素质进行探讨 ,并认为青春发育期是培养运动员心理素质的最重要时期。  相似文献   

我院中青年教师队伍的现状分析与发展对策     

刘建兵  丁进国 《首都体育学院学报》2002,14(4):85-87

在对我院的中青年师资队伍现状分析的基础上，提出中青年教师队伍建设的建议：（1）提高中青年教师的思想政治素养和职业道德修养；（2）以学院整体发展目标为出发点，提高中青年教师的综合素质和专业水平；（3）建立和完善激励机制，为中青年教师的成长创造良好条件；（4）建立合理的分配机制，重视和加强中青年学科带头人的培养；（5）加强中青年教师科研能力的培养。  相似文献   

Using the self-determination theory to understand Chinese adolescent leisure-time physical activity     

Lijuan Wang 《European Journal of Sport Science》2017,17(4):453-461

Purposes: This study applies the self-determination theory (SDT) to test the hypothesized relationships among perceived autonomy support from parents, physical education (PE) teachers, and peers, the fulfilment of psychological needs (i.e., autonomy, competence, and relatedness), autonomous motivation, and leisure-time physical activity of Chinese adolescents. Method: There are 255 grade six to eight student participants from four middle schools around Shanghai, China included in this study. An accelerometer was used to measure the moderate-to-vigorous physical activity (MVPA). The participants completed the questionnaires regarding SDT variables. The structural equation modelling was applied to examine the hypothesized relationships among the study variables. Results: The model of hypothesized relationships demonstrated a good fit with the data [X²?=?20.84, df?=?9, P?=?.01; CFI?=?0.98; IFI?=?0.98; SRMR?=?0.04; RMSEA?=?0.05]. The findings revealed that autonomy support from parents, PE teachers, and peers foster social conditions in which the three basic psychological needs can be met. In turn, autonomy, competence, and relatedness are positively associated with autonomous motivation for MVPA. The autonomous motivation positively relates to the MVPA time of adolescents. The three psychological needs partially mediate the influence of autonomy support from parents (β?=?0.18, P?<?.01; Bootstrap 95% CI?=?0.06–0.33) and teachers (β?=?0.17, P?<?.01; Bootstrap 95% CI?=?0.03–0.26) in the autonomous motivation. Conclusion: In conclusion, these findings support the applicability of SDT in understanding and promoting physical activity of Chinese adolescents.  相似文献   

‘It's The Catcher in the Rye… He said it was the kind of book you made your own': Finding Holden in Contemporary YA Literature     

Steven T. Bickmore  Kate Youngblood 《English in Education》2014,48(3):250-263

Published in 1951,The Catcher in the Rye encapsulated teenage angst. Some time ago David Belbin mused about the influence of Catcher on the proliferation and popularity of YA literature. Salinger's recent death has sparked a renewed interest in his work and more attention on Holden and his inheritors. This article discusses how five recent adolescent novels, with male protagonists, mirror Holden's adolescent paralysis. They exist in a liminal state between childhood and adulthood, attempting to understand the phonies around them. These protagonists help define the nature of the ‘lost’ adolescent in the current golden age of YA literature.  相似文献   

Parental perceptions of gender differences in child technology use and cyberbullying     

Mallory Bolenbaugh  Megan Foley-Nicpon  Rachel Young  Melissa Tully  Nikki Grunewald  Marizen Ramirez 《Psychology in the schools》2020,57(11):1657-1679

Cyberbullying is a major health concern for today's youth and a pervasive stressor for adolescents and their families. This study offers qualitative insights into how parents perceive their children's technology use and engagement in cyberbullying based on gender. Eight focus groups were conducted with 48 parents of adolescents ages 10–17. Findings indicated parents perceived their children overuse technology and lack awareness of what cyberbullying is. Specific to gender, parents suggested their daughters use technology for social connection, and parents were more concerned about their daughter's technology use than their son's, which they believed was related to specific interests. In response to cyberbullying scenarios, parents encouraged females but not males to socialize with peers. This is the first qualitative study to obtain an in-depth understanding of the ways in which parents perceive and socialize their children in regard to technology use and cyberbullying scenarios. These results may help school systems, school psychologists, researchers, and parents gain awareness of the gender-stereotypical socialization process that unfolds in parental monitoring of technology use and cyberbullying situations. We conclude by offering suggestions for how school systems and personnel might intervene.  相似文献   

有氧运动对我国肥胖少年儿童的干预效果研究--基于元分析方法     

解超  金成吉  张军 《南京体育学院学报(社会科学版)》2016,(2):84-90

研究目的：运用元分析法( Meta-analysis)检验有氧运动对我国肥胖少年儿童的干预效果。研究方法：检索20052010年23篇相关文献进行元分析,对23篇文献质量进行评估后,采用随机效应模型对研究的效应值和异质性进行检验。研究结果：23篇文献GRADE风险评估结果为A级12篇、B级9篇、C级2篇,文献存在系统误差的可能性很低。元分析结果中效应值为2．59,95%CI(2．14,3．05),说明有氧运动干预对于我国少年儿童的肥胖具有很好的干预效果。异质性检验指标Q值为21．13(P=0．51),I2=0%,研究间不存在异质性和发表偏倚。研究结论：有氧运动是我国肥胖少年儿童进行减肥的有效手段,对少年儿童的肥胖干预效果十分明显。持续3个月以上,每周36次,每次4090分钟的中等强度有氧运动对于我国少年儿童减肥效果最佳。  相似文献   

‘When words don't come easily’: personal narratives from adolescents experiencing shyness as an emotional and behavioural problem in the school context     

Ingrid Lund 《British Journal of Special Education》2016,43(4):430-447

The purpose of this article is to present narratives from 15 adolescents experiencing shy behaviour as an emotional and behavioural problem in the school context in light of narrative understanding. The investigation is intended to generate knowledge about this largely under‐researched phenomenon based on the personal accounts of those who are actually experiencing it. Their narratives are the foundation for a discussion regarding implications for future practice in the context of school in relation to this group.  相似文献   

Depressive Symptoms and Violence Exposure: Contributors to Repeat Pregnancies Among Adolescents     

Cheryl A. Anderson  Lisa Pierce 《The Journal of perinatal education》2015,24(4):225-238

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