Timing and mechanism for developing physical activity habits

养成身体活动习惯的时机和机制

• 批准号: 8878321
• 负责人: Soyang Kwon
• 金额: $ 7.25万
• 依托单位: LURIE CHILDREN'S HOSPITAL OF CHICAGO
• 依托单位国家: 美国
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-07-01 至 2016-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8878321
• 关键词: Accounting; Address; Adolescence; Adolescent; Aerobic; Affect; Age; Behavior; Body Composition; Bone Development; Cessation of life; Characteristics; Child; Child Development; Child Support; Childhood; Cohort Studies; Complex; Data; Data Analyses; Databases; Development; Environment; Family; Growth; Habits; Health; Health Benefit; Health Care Costs; Height; Individual; Intervention; Iowa; Knowledge; Measures; Menarche; Methodology; Modeling; Obesity; Outcome; Parents; Participant; Pathway interactions; Pattern; Physical activity; Population; Population Study; Recommendation; Research; Social Characteristics; Socioeconomic Status; Sports; Staging; Subgroup; Television; Testing; Time; Video Games; aged; base; behavior change; boys; cohort; data reduction; emerging adult; girls; innovation; knowledge base; longitudinal database; meetings; parental influence; sedentary; sex; social; success

DESCRIPTION (provided by applicant): Habitual physical activity (PA) provides numerous health benefits for children and adolescents. Average PA levels substantially decrease during adolescence, which influences long-term health conditions and healthcare costs. A few studies have suggested that PA behavior may be established in different times and in different patterns by child subgroups. Studies have also examined the determinant of PA behavior change. However, the analytic approach of the most studies has not appropriately captured the complex relationship among multiple bio-social factors hypothesized to affect PA behavior. The knowledge gap and methodological challenge can be addressed using an innovative analytic approach such as latent class growth analysis and latent variable analysis the objective of this project is to understand the development of PA behavior throughout childhood and bio- social influences of the PA development. We hypothesize that the development of child PA behavior is characterized by multiple developmental pathways representing distinct groups within the child population. We also hypothesize that there are underlying bio-social characteristics that account for PA change patterns during childhood and early adulthood. To test these hypotheses, we propose to conduct secondary data analysis using the longitudinal database from the Iowa Bone Development Study database. The three specific aims of this project are AMI 1) to determine developmental trajectories of MVPA behavior from age 5 to 19 years, AIM 2) to identify bio-social characteristics associated with different developmental trajectories of MVPA behavior identified in AIM 1, and AIM 3) to determine the trajectories for overall PA and sedentary time, and identify their associated bio-social characteristics. We will use latent class growth analysis to identify multiple developmental trajectories of PA. We will also use a latent variable approach to characterize the subpopulations following a certain PA trajectories. This study will expand knowledge on patterns and determinants of PA behavior. The success of this project will accelerate the use of the innovative latent class methodology in pediatric PA research.

描述(申请人提供)：习惯性体力活动(PA)为儿童和青少年提供许多健康益处。平均PA水平在青春期大幅下降，这影响了长期的健康状况和医疗费用。一些研究表明，PA行为可能是由儿童亚群在不同的时间以不同的模式建立的。研究还考察了PA行为变化的决定因素。然而，大多数研究的分析方法并没有恰当地捕捉到假想影响PA行为的多种生物-社会因素之间的复杂关系。知识差距和方法挑战可以用一种创新的分析方法来解决，如潜在班级增长分析和潜在变量分析。本项目的目的是了解PA行为在整个童年时期的发展以及PA发展的生物-社会影响。我们假设，儿童PA行为的发展是由代表儿童群体中不同群体的多条发展路径所表征的。我们还假设，存在潜在的生物-社会特征，这些特征解释了PA在童年和成年早期的变化模式。为了验证这些假设，我们建议使用爱荷华州骨发育研究数据库中的纵向数据库进行二次数据分析。本项目的三个具体目标是：1)确定5-19岁MVPA行为的发展轨迹，2)确定与AIM 1中确定的MVPA行为的不同发展轨迹相关的生物-社会特征，以及3)确定总体PA和久坐时间的轨迹，并确定其相关的生物-社会特征。我们将使用潜在班级增长分析来识别PA的多个发展轨迹。我们还将使用潜变量方法来表征遵循特定PA轨迹的亚群。这项研究将扩大关于PA行为模式和决定因素的知识。该项目的成功将加速创新潜伏班方法在儿科PA研究中的应用。