The Protective Effects of Physical Activity on Adolescent Smoking Progression

体力活动对青少年吸烟进展的保护作用

• 批准号: 8053245
• 负责人: JANET E AUDRAIN-MCGOVERN
• 金额: $ 60.1万
• 依托单位: UNIVERSITY OF PENNSYLVANIA
• 依托单位国家: 美国
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-06-01 至 2013-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8053245
• 关键词: 14 year old; 18 year old; Accounting; Address; Adolescence; Adolescent; Adopted; Adult; Age; Athletic; Behavior; Behavioral; Belief; Body mass index; Cessation of life; Characteristics; Cognitive; Competence; Data; Development; Dose; Drug usage; Economics; Environment; Female; Food; Goals; Growth; Habits; Health; Home environment; Individual; Intervention; Leisure Activities; Longitudinal Studies; Mediating; Mental Depression; Modeling; Morbidity - disease rate; Nature; Outcome; Parents; Pattern; Performance; Physical activity; Prevention program; Preventive Intervention; Psychological reinforcement; Public Health; Research; Rewards; Risk; Risk Behaviors; Smoke; Smoker; Smoking; Smoking Behavior; Smoking Prevention; Social support; Structure; Time; Tobacco; Withholding Treatment; Youth; adolescent smoking; alcohol and other drug; base; cigarette smoking; cohort; depressive symptoms; discounting; expectation; interest; intervention program; mortality; parental monitoring; peer; prevent; protective effect; psychologic; sedentary; smoking cessation; smoking intervention; smoking prevalence; social cognitive theory; theories

DESCRIPTION (provided by applicant): Cigarette smoking is the leading preventable cause of morbidity and mortality in the U.S. About 23% of adolescents are regular smokers. To further reduce adolescent smoking, factors that protect against adolescent smoking need to be identified and subsequently incorporated into youth smoking prevention programs. Physical activity may be an important protective factor against youth smoking initiation and progression. Although longitudinal studies of smoking and physical activity indicate that higher levels of physical activity reduce the odds of adolescent smoking initiation and progression, the nature of this relationship, the mechanisms explaining this protective relationship, the amount of physical activity needed to confer a protective effect, and the adolescents at risk for smoking due to their levels of physical activity remain unclear. We propose to address this gap by creating a cohort of 1,000 adolescents (age 14 years) and following them over a four-year period (age 18 years). Socio-environmental, behavioral and psychological influences on smoking and physical inactivity will be collected. The aims of the proposed study are to (1) clarify the nature of the relationship between smoking and physical activity, (2) evaluate the mechanisms explaining the physical inactivity and smoking relationship, (3) empirically identify distinct longitudinal paths or smoking-physical inactivity trajectories to determine optimal intervention timing and the amount of physical activity needed to protect against smoking, and (4) characterize these trajectories by socio-environmental, behavioral and psychological variables to identify adolescents at risk for smoking within the context of their physical activity habits. Specific outcomes of interest include (a) odds and rates of progression to regular smoking and physical inactivity, and (b) longitudinal patterns or smoking-physical inactivity trajectories. This will be one of the first studies to concurrently and comprehensively evaluate smoking and physical activity from mid to late adolescence, to elucidate and quantify the protective relationship, and to explore how theory-based mechanisms relate to critical points in the development of a smoking habit often carried into adulthood. Results from this study can be used to inform the timing, type, amount of physical activity, target variables and important subpopulations for adolescent smoking prevention and intervention programs.

描述（由申请人提供）：吸烟是美国发病和死亡的主要可预防原因。约 23% 的青少年经常吸烟。为了进一步减少青少年吸烟，需要确定预防青少年吸烟的因素，并将其纳入青少年吸烟预防计划。体力活动可能是防止青少年吸烟开始和发展的重要保护因素。尽管吸烟和体力活动的纵向研究表明，较高水平的体力活动可降低青少年吸烟开始和进展的几率，但这种关系的性质、解释这种保护性关系的机制、产生保护作用所需的体力活动量以及由于体力活动水平而面临吸烟风险的青少年仍不清楚。我们建议通过创建一个由 1,000 名青少年（14 岁）组成的队列并对他们进行为期四年（18 岁）的跟踪来解决这一差距。将收集社会环境、行为和心理对吸烟和缺乏身体活动的影响。拟议研究的目的是（1）阐明吸烟与身体活动之间关系的本质，（2）评估解释身体不活动和吸烟关系的机制，（3）凭经验确定不同的纵向路径或吸烟-身体不活动轨迹，以确定最佳干预时机和预防吸烟所需的身体活动量，以及（4）通过社会环境、行为来描述这些轨迹 和心理变量，以根据身体活动习惯识别有吸烟风险的青少年。感兴趣的具体结果包括（a）进展为经常吸烟和缺乏身体活动的几率和速率，以及（b）纵向模式或吸烟-缺乏身体活动轨迹。这将是首批同时全面评估青春期中后期吸烟和体力活动的研究之一，以阐明和量化保护关系，并探索基于理论的机制如何与成年期吸烟习惯发展的关键点相关。这项研究的结果可用于告知青少年吸烟预防和干预计划的时间、类型、体力活动量、目标变量和重要亚人群。