Sedentary Behavior Characteristics, Sedentary Profiles, and Subsequent Functional Loss

久坐行为特征、久坐概况和随后的功能丧失

• 批准号: 9110118
• 负责人: Jungwha Julia Lee
• 金额: $ 17.38万
• 依托单位: NORTHWESTERN UNIVERSITY AT CHICAGO
• 依托单位国家: 美国
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-07-13 至 2017-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9110118
• 关键词: Accelerometer; Accounting; Activities of Daily Living; Adult; Behavior Therapy; Characteristics; Chronic; Clinical; Clinical assessments; Data; Data Analyses; Databases; Degenerative polyarthritis; Development; Diabetes Mellitus; Elderly; Energy Metabolism; Frequencies; Funding Opportunities; Future; Goals; Health; Health Promotion; Heart Diseases; Hour; Individual; Intervention; Knee Osteoarthritis; Knowledge; Lead; Metabolic; Methodology; Monitor; Obesity; Outcome; Persons; Physical Function; Physical activity; Population; Posture; Public Health; Quality of life; Research; Research Project Grants; Resources; Risk; Risk Factors; Role; Sampling; Time; Visit; Walking; base; community living; cost effective; design; effective intervention; follow-up; functional loss; healthy lifestyle; improved; intervention program; knee pain; longitudinal database; modifiable risk; prevent; public health intervention; response; sedentary; sedentary activity; sedentary lifestyle

 DESCRIPTION (provided by applicant): The objective of this proposed project is to identify and describe specific sedentary characteristics and sedentary profiles associated with subsequent functional loss in older adults at elevated risk for poor function. The proposal responds to PA-13-237 regarding the identification of modifiable risk factors such as sedentary lifestyles. We will conduct a secondary data analysis of the Osteoarthritis Initiative (OAI) database, which is a cost effective use of publicly available data on a sample of older adults at elevated risk for functional loss due to knee osteoarthritis or knee osteoarthritis risk factors (eg., obesity, knee pain). Reducing sedentary behavior is recommended as a strategy to prevent poor health outcomes. However, it is not known which aspects of sedentary behavior are problematic. The OAI public data provide objective physical activity assessments from accelerometer monitoring and longitudinal clinical assessments to pursue the following aims: Aim 1. Describe Daily Sedentary Behavior Characteristics Describe the distribution of daily sedentary behavior characteristics: 1) total sedentary time, 2) maximum duration of sedentary bouts (sessions), 3) sedentary break frequency, and 4) physical activity duration/intensity level during sedentary breaks. Aim 2: Identify Distinct Sedentary Profiles Identify the presence of distinct baseline sedentary profiles (i.e., combinations of sedentary behavior characteristics in Aim 1) and evaluate their distribution. Latent profile analysis will be used to identify sedentary profiles. Aim 3. Association of Sedentary Behavior Characteristics and Profiles with Functional Loss Evaluate the relative strength of association of sedentary behavior characteristics (Aim 1) and sedentary profiles (Aim 2) with subsequent functional loss at year 2. Results from this study will expand the understanding of sedentary behavior characteristics, sedentary profiles, and their association with subsequent functional loss in order to inform the development of more effective interventions to sustain function and independence of older adults.

 描述(由申请人提供)：这项拟议项目的目标是确定和描述特定的久坐特征和与功能低下风险升高的老年人随后的功能丧失相关的久坐特征。该提案回应了PA-13-237关于确定可改变的风险因素，如久坐的生活方式。我们将对骨关节炎倡议(OAI)数据库进行二次数据分析，该数据库是对因膝骨性关节炎或膝骨性关节炎风险因素(如肥胖、膝部疼痛)导致功能丧失风险增加的老年人样本的公开可用数据的成本效益分析。建议将减少久坐行为作为预防不良健康结果的一种策略。然而，目前还不知道久坐行为的哪些方面存在问题。OAI公共数据通过加速度计监测和纵向临床评估提供客观的体力活动评估，以追求以下目标：目标1.描述每日久坐行为特征描述每日久坐行为特征的分布：1)总久坐时间，2)最长久坐时间(会话)，3)久坐休息频率，以及4)久坐休息期间的身体活动持续时间/强度水平。目标2：确定不同的久坐特征，确定不同的基线久坐特征的存在(即目标1中久坐行为特征的组合)，并评估它们的分布。潜伏期分析将被用来识别久坐不动的状况。目的3.久坐行为特征和特征与功能丧失的相关性评估2岁时久坐行为特征(目标1)和久坐特征(目标2)与随后的功能丧失的相关性的相对强度。这项研究的结果将扩大对久坐行为特征、久坐特征及其与后续功能丧失的关联的理解，以便为开发更有效的干预措施来维持老年人的功能和独立性提供信息。