A New Instrument to Comprehensively Assess Sedentary Behaviors

描述（由申请人提供）：我们醒着的大部分时间都是久坐不动的（例如，斜倚，坐着不动），在这些行为中花费的时间与能量消耗减少，体重增加风险增加和慢性疾病独立相关。研究人员和卫生保健提供者对久坐行为（SB）感兴趣的努力将大大加强有效和易于管理的工具，用于基于人群的研究，可以根据其背景，环境，目的，类型和数量来评估SBs。这样一个工具将更充分地揭示SBs对健康的影响，并将能够衡量对干预措施作出反应的行为变化。我们的总体目标是开发一个可管理长度的工具，提供人口中主要SBs的全面概况，并产生这些行为的异质测量。我们建议在两个有久坐不良健康后果风险的人群（青少年和成人）中进行研究计划。首先，我们将利用现有的国家数据来源和一项从头开始的描述性研究（N=200）的信息，从患病率和持续时间方面仔细描述最重要的SBs。我们将使用这些描述性研究来并行开发和完善三份SB问卷：两份针对年龄的工具（青少年，成年人）和一份可能适用于两个年龄组的通用测量方法。我们将使用描述性研究、认知测试和专家评审的结果来确定通用措施的可行性。如果可行，我们将在研究的第二部分对其进行评估。如果没有，我们将评估针对年龄的工具。其次，我们将在单独的青少年（n=200）和成人（n=200）样本中进行新SBQ的信度和效度研究，采用自我报告和客观测量来建立标准效度。除了通过因子分析评估sbq的心理测量特性外，我们还将进行探索性分析，以确定可作为该工具简短形式的项目子集。第三，我们将通过网络免费传播新的sbq及其评分算法。我们预计，本研究项目中开发的工具将有助于试图描述SBs发生的地点和原因的研究，检查SBs对健康不利影响的病因学研究，以及寻求量化这些行为在干预或健康促进计划中的变化的临床和干预研究。公共健康相关性：我们醒着的大部分时间都是久坐不动的，这些行为与肥胖和慢性疾病有关。研究人员和卫生保健提供者对久坐行为（SB）感兴趣的努力将大大加强有效和易于管理的测量SB的仪器的存在。我们寻求开发一个可管理的长度的问卷，全面评估人群中的主要SBs。

DESCRIPTION (provided by applicant): We are sedentary for the majority of our waking hours (e.g., reclining, sitting still) and time spent in these behaviors have been independently associated with reduced energy expenditure, increased risk for weight gain, and chronic disease. The efforts of researchers and health care providers interested in sedentary behavior (SB) would be greatly enhanced by a valid and easy- to-administer instrument for population-based studies that can assess SBs in terms of their context, setting, purpose, type, and amount. Such an instrument would reveal more fully the impact of SBs on health, and would allow a measurement of changes in behaviors in response to interventions. Our overall goal is to develop an instrument of manageable length that provides a comprehensive profile of major SBs in the population, and that produces a heterogeneous measure of these behaviors. We propose a research program to be conducted in two populations (adolescents and adults) at risk for the adverse health consequences of sedentarism. First, we will describe carefully the most important SBs in terms of the prevalence and duration using available national data sources and information from a de novo descriptive study (N=200). We will use these descriptive studies to develop and refine in parallel three SB questionnaires: two age-specific instruments (adolescents, adults) and a common measure that may be suitable for both age-groups. We will determine the feasibility of the common measure using results from our descriptive studies, cognitive testing, and expert review. If it is feasible we will evaluate it in the second portion of our research. If not, we will evaluate the age-specific instruments. Second, we will conduct a reliability and validity study of the new SBQ(s) in a separate sample of adolescents (n=200) and adults (n=200) using both self-report and objective measures to establish criterion validity. In addition to evaluating the psychometric properties of the SBQs via factor analysis, we also will conduct exploratory analyses to identify a subset of items that could be used as a short-form of the instrument(s). Third, we will disseminate the new SBQs and their scoring algorithms for free via the web. We anticipate that the instruments developed in this research program will facilitate studies that attempt to describe where and why SBs occur, etiologic studies that examine the adverse effects of SBs on health, and clinical and intervention studies that seek to quantify changes in these behaviors in response to an intervention or health promotion program. PUBLIC HEALTH RELEVANCE: We are sedentary for the majority of our waking hours and time spent in these behaviors has been associated with obesity and chronic disease. The efforts of researchers and health care providers interested in sedentary behavior (SB) would be enhanced greatly by the existence of a valid and easy-to-administer instrument with which to measure SB. We seek to develop a questionnaire of manageable length that comprehensively assesses major SBs in the population. Inclusion of Women Plan: One-half of targeted and planned enrollment includes women. Inclusion of Minorities Plan: The targeted and planned enrollment includes representation of minorities that is consistent with the geographic location. Inclusion of Children Plan: The study will recruit an equal number of children (ages 12-17) as adults.