Department of Physical Therapy, University of Alabama at Birmingham, Birmingham, AL, 35209, USA.
Department of Physical Therapy, University of Alabama at Birmingham, Birmingham, AL, 35209, USA.
Disabil Health J. 2021 Oct;14(4):101163. doi: 10.1016/j.dhjo.2021.101163. Epub 2021 Jun 29.
Persons with multiple sclerosis (MS) experience co-occurring symptoms termed "symptom clusters" that can be distinguished based on mild, moderate, or severe symptom severity termed "symptom cluster severity." Physical activity (PA) may be an approach for improving co-occurring symptoms.
To examined if PA and social cognitive theory (SCT) variables differed by symptom cluster groups, and if associations between SCT variables and PA were moderated by symptom cluster groups.
Secondary analysis of participants with MS (N = 205) enrolled in a cross-sectional study. Trend analyses were conducted to determine if device-measured and self-reported PA and SCT variables (i.e., social support, self-efficacy, outcome expectations, goal setting, planning, and impediments) decreased with increased symptom cluster severity. Spearman rho rank-order correlations were conducted between PA measures and SCT variables within each symptom cluster group.
Linear trend analyses indicated that self-reported PA declined with increased symptom cluster severity groups (F = 4.90,p = 0.03). Linear trend analyses indicated significant differences among symptom cluster severity groups in social support (F = 31.43,p = 0.001), exercise self-efficacy (F = 22.55,p = 0.001), barrier self-efficacy (F = 11.48,p = 0.001), outcome expectations (F = 6.98,p = 0.009), and impediments (F = 34.41,p = 0.001). There were differential associations of moderate magnitude in correlations, such that three SCT variables were associated with PA in the mild group (i.e., self-efficacy, goal setting and planning), two in the moderate group (i.e., social support and goal setting), and four in the severe group (i.e., self-efficacy, outcome expectations, planning, and social support).
Further research is warranted examining the use of SCT-based behavior change techniques for promoting PA and improving symptom clusters in persons with MS.
多发性硬化症（MS）患者会出现同时发生的症状，这些症状被称为“症状群”，可以根据轻度、中度或重度症状严重程度进行区分，称为“症状群严重程度”。身体活动（PA）可能是改善同时发生的症状的一种方法。
检查 PA 和社会认知理论（SCT）变量是否因症状群组而有所不同，以及 SCT 变量与 PA 之间的关联是否受症状群组的调节。
对参加横断面研究的 MS 患者（N=205）进行二次分析。进行趋势分析以确定设备测量和自我报告的 PA 和 SCT 变量（即社会支持、自我效能、结果预期、目标设定、计划和障碍）是否随症状群严重程度的增加而降低。在每个症状群组内，对 PA 测量和 SCT 变量进行 Spearman rho 秩相关分析。
线性趋势分析表明，自我报告的 PA 随症状群严重程度组的增加而下降（F=4.90，p=0.03）。线性趋势分析表明，在社会支持（F=31.43，p=0.001）、运动自我效能（F=22.55，p=0.001）、障碍自我效能（F=11.48，p=0.001）、结果期望（F=6.98，p=0.009）和障碍（F=34.41，p=0.001）方面，症状群严重程度组之间存在显著差异。相关性存在中等程度的差异关联，即三个 SCT 变量与轻度组的 PA 相关（即自我效能、目标设定和计划），两个与中度组相关（即社会支持和目标设定），四个与重度组相关（即自我效能、结果期望、计划和社会支持）。
需要进一步研究使用基于 SCT 的行为改变技术来促进 PA 和改善 MS 患者的症状群。
