A New Instrument to Comprehensively Assess Sedentary Behaviors

摘要 我们醒着的大部分时间都是久坐不动的（例如，斜躺，静坐）和花费的时间 在这些行为已经独立地与减少的能量消耗相关联， 增加体重增加和慢性疾病的风险。研究人员和医疗保健的努力 对久坐行为感兴趣的提供者（SB）将通过有效和简单的- 用于基于人群的研究的管理工具，可以评估SB的 上下文、设置、目的、类型和数量。这样的工具将更充分地揭示 SBs对健康的影响，并允许测量响应行为的变化 干预措施。我们的总体目标是开发一种长度可控的工具， 人口中主要SB的全面概况，并产生异质性 衡量这些行为。我们提出了一个研究计划，将在两个 面临不良健康后果风险的人群（青少年和成年人） 久坐症首先，我们将根据患病率仔细描述最重要的SB 利用现有国家数据来源和重新分类描述性调查提供的信息， 研究（N=200）。我们将使用这些描述性研究来并行地开发和完善三个SB 调查问卷：两种针对具体年龄的工具（青少年、成年人）和一种共同措施， 可能适合两个年龄段。我们将确定共同措施的可行性 使用我们的描述性研究、认知测试和专家评审的结果。是否可行 我们将在第二部分的研究中对其进行评估。如果没有，我们将评估特定年龄的 仪器.第二，我们将进行信度和效度研究的新SBQ（S）在 青少年（n=200）和成人（n=200）的单独样本，使用自我报告和客观 建立标准有效性的措施。除了评估的心理测量特性， 通过因素分析，我们还将进行探索性分析，以确定一个子集， 可用作文书简称的项目。第三，我们会宣传 新的SBQ和他们的评分算法免费通过网络。我们预计， 在这项研究计划中开发的将有助于研究，试图描述在哪里和为什么 SB的发生、检查SB对健康的不良影响的病因学研究以及临床和 干预研究，旨在量化这些行为的变化，以应对 干预或健康促进方案。

ABSTRACT 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.