Meinke Anita, Maschio Cinzia, Meier Michael L, Karlen Walter, Swanenburg Jaap
Mobile Health Systems Lab, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland.
Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland.
Front Psychol. 2022 Nov 18;13:1006034. doi: 10.3389/fpsyg.2022.1006034. eCollection 2022.
Fear of movement is thought to interfere with the recovery from low back pain (LBP). To date, the relationship between fear of movement and postural balance has not been adequately elucidated. Recent findings suggest that more specific fears need to be assessed and put in relation to a specific movement task. We propose that the fear to bend the trunk in a certain direction is distinctly related to the amount of postural sway in different directions. Therefore, our aim was to investigate whether fear of movement in general and fear of bending the trunk in a certain plane is related to postural sway.
Data was collected from participants with LBP during two assessments ~3 weeks apart. Postural sway was measured with a force-platform during quiet standing with the eyes closed. Fear of movement was assessed with an abbreviated version of the Tampa Scale of Kinesiophobia (TSK-11) and custom items referring to fear of bending the trunk in the sagittal and the frontal plane.
Based on data from 25 participants, fear of bending the trunk in the frontal plane was positively related to displacement in the sagittal and frontal plane and to velocity in the frontal plane ( = 4.35, = 0.04; = 8.15, = 0.004; = 9.79, = 0.002). Fear of bending the trunk in the sagittal plane was not associated with any direction specific measure of sway. A positive relation of the TSK-11 with velocity of the frontal plane ( = 7.14, = 0.008) was found, but no association with undirected measures of sway.
Fear of bending the trunk in the frontal plane may be especially relevant to postural sway under the investigated stance conditions. It is possible that fear of bending the trunk in the frontal plane could interfere with balance control at the hip, shifting the weight from side to side to control balance.
For the first time the directional relationship of fear of movement and postural sway was studied. Fear of bending the trunk in the frontal plane was positively associated with several measures of postural sway.
对运动的恐惧被认为会干扰腰痛（LBP）的恢复。迄今为止，对运动的恐惧与姿势平衡之间的关系尚未得到充分阐明。最近的研究结果表明，需要评估更具体的恐惧，并将其与特定的运动任务联系起来。我们提出，在特定方向上弯曲躯干的恐惧与不同方向上的姿势摆动量明显相关。因此，我们的目的是研究一般的运动恐惧以及在特定平面上弯曲躯干的恐惧是否与姿势摆动有关。
在大约相隔3周的两次评估中收集了患有LBP的参与者的数据。在闭眼安静站立期间用测力平台测量姿势摆动。用坦帕运动恐惧量表（TSK-11）的简化版以及涉及在矢状面和额状面弯曲躯干恐惧的自定义项目来评估运动恐惧。
基于25名参与者的数据，在额状面弯曲躯干的恐惧与矢状面和额状面的位移以及额状面的速度呈正相关（ = 4.35， = 0.04； = 8.15， = 0.004； = 9.79， = 0.002）。在矢状面弯曲躯干的恐惧与任何特定方向的摆动测量均无关联。发现TSK-11与额状面速度呈正相关（ = 7.14， = 0.008），但与无方向的摆动测量无关联。
在研究的站立条件下，在额状面弯曲躯干的恐惧可能与姿势摆动特别相关。在额状面弯曲躯干的恐惧可能会干扰髋部的平衡控制，使体重从一侧转移到另一侧以控制平衡，这是有可能的。
首次研究了运动恐惧与姿势摆动的方向关系。在额状面弯曲躯干的恐惧与姿势摆动的几种测量呈正相关。
