A New Instrument to Comprehensively Assess Sedentary Behaviors

描述（由申请人提供）：我们在醒着的大部分时间里都是久坐不动的（例如，斜躺、静坐）和这些行为所花费的时间与能量消耗减少、体重增加和慢性疾病风险增加独立相关。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的和易于管理的工具，以人口为基础的研究，可以评估SB的背景，设置，目的，类型和数量。这样一种工具将更充分地揭示次级结构对健康的影响，并将允许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种长度可控的工具，提供人口中主要SB的全面概况，并产生对这些行为的异质性测量。我们建议在两个人群（青少年和成年人）中进行研究计划，久坐症的不良健康后果的风险。首先，我们将使用现有的国家数据来源和从头描述性研究（N=200）的信息，从患病率和持续时间方面仔细描述最重要的SB。我们将使用这些描述性研究，并行开发和完善三个SB问卷：两个特定年龄的工具（青少年，成人）和一个共同的措施，可能适合这两个年龄组。我们将使用我们的描述性研究，认知测试和专家评审的结果来确定共同措施的可行性。如果可行，我们将在研究的第二部分进行评估。如果没有，我们将评估特定年龄的工具。其次，我们将在青少年（n=200）和成人（n=200）的单独样本中使用自我报告和客观测量方法对新SBQ进行可靠性和有效性研究，以建立标准有效性。除了通过因素分析评估SBQ的心理测量学特性外，我们还将进行探索性分析，以确定可用作工具简式的项目子集。第三，我们将通过网络免费发布新的SBQ及其评分算法。我们预计，在这项研究计划中开发的工具将有助于研究，试图描述SB发生的位置和原因，检查SB对健康的不良影响的病因学研究，以及寻求量化这些行为的变化的临床和干预研究，以响应干预或健康促进计划。公共卫生相关性：我们醒着的大部分时间都是久坐不动的，花在这些行为上的时间与肥胖和慢性疾病有关。研究人员和卫生保健提供者的努力，有兴趣在久坐行为（SB）将大大提高存在一个有效的和易于管理的工具来衡量SB。我们寻求开发一个问卷的管理长度，全面评估人口中的主要SB。 纳入妇女计划：有针对性的和计划的入学人数中有一半是妇女。 少数民族融入计划：有针对性和计划的招生包括与地理位置一致的少数民族代表。 纳入儿童计划：本研究将招募与成人相同数量的儿童（12-17岁）。

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.