Physical activity and psychosocial characteristics of asymptomatic subjects and low back pain patients in real life

腰痛(LBP)是全球最普遍的致残健康主诉。对这种疾病及其预防和治疗成功的了解仍然有限，这是因为对脊柱结构/运动及其与疼痛和健康行为(即体力活动，PA)之间的相互关系的基本机制了解很少，而且之前的LBP研究通常采用单一场合设计，在确定现实生活中的危险因素方面缺乏相关性。为了更好地了解慢性LBP，该项目(与SP1和SP4密切合作)将首次将可修改的心理社会和行为数据与在个人自然环境中重复测量的形态和运动参数结合起来。本子项目将补充研究小组的总体目标，将LBP患者的诊断工作扩展到纵向研究设计中对健康行为和心理社会功能的分析，在现实生活中的个人内部水平(即，门诊必需品)提供高时间分辨率的数据。我们将通过智能手机在日常生活中使用传统工具结合加速计和生态瞬时评估(即疼痛和心理社会变量的自我报告)来测量日常活动。我们提出以下假设：(1)真实生活中的心理功能评估与PA和脊柱运动/形态相关。(2)与无症状的人相比，我们预计LBP患者的PA和心理社会功能水平较低。(3)与标准康复计划相比，接受非手术、基于运动的干预(见SP4)的个人将在心理社会功能和PA方面显示出积极的变化。

Low back pain (LBP) is the most prevalent disabling health complaint worldwide. The understanding of this disorder and its prevention and treatment success remain limited because a basic mechanistic understanding of the inter-relationship between spinal structure/motion and their association with pain and health behavior (i.e., physical activity, PA) is rare, and because previous LBP research has usually applied single occasion designs lacking relevance in determining risk factors in real life. To better understand chronic LBP, this project (in close collaboration with SP1 and SP4) will combine, for the first time, modifiable, psychosocial and behavioral data with parameters on morphology and motion measured repeatedly in the individuals’ natural environment. The present subproject will complement the overall aim of the research group by extending the diagnostic workup of LBP patients towards an analysis of health behavior and psychosocial functioning in longitudinal study designs, providing high temporal resolution of data at the intra-individiual level in real life (i.e., ambulatory asessments). We will measure daily activities using traditional tools combined with accelerometry and ecological momentary assessments (i.e., self-reports of pain and psychosocial variables) in everyday life via smartphone.We put forth the following hypotheses:(1) Real-life assessments of psychological functioning are associated with PA and spinal motion/morphology.(2) Compared to asymptomatic individuals, we expect LBP patients to show lower levels of PA and psychosocial functioning. (3) Individuals who undergo a non-surgical, exercise-based intervention (see SP4) will show positive changes in psychosocial functioning and PA compared to a standard rehabilitation program.