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

下背痛（LBP）是全球最常见的致残性健康问题。对这种疾病及其预防和治疗成功的了解仍然有限，因为对脊柱结构/运动之间的相互关系及其与疼痛和健康行为（即，体力活动，PA）是罕见的，并且因为先前的LBP研究通常应用单一场合设计，在确定真实的生活中的风险因素时缺乏相关性。为了更好地了解慢性腰痛，该项目（与SP1和SP 4密切合作）将首次将可修改的心理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相结合。目前的子项目将补充研究小组的总体目标，通过扩展LBP患者的诊断检查，以纵向研究设计分析健康行为和心理社会功能，在真实的生活中提供个体内水平的高时间分辨率数据（即，门诊评估）。我们将使用传统工具结合加速度计和生态瞬时评估（即，疼痛和心理社会变量的自我报告）在日常生活中通过智能手机。我们提出以下假设：（1） 心理功能的现实生活评估与PA和脊柱运动/形态学相关。（二） 与无症状个体相比，我们预计LBP患者表现出较低水平的PA和心理社会功能。（三） 与标准康复计划相比，接受非手术、基于运动的干预（见SP 4）的个人将在心理社会功能和PA方面表现出积极的变化。

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.