From the Department of Kinesiology, Indiana University-Purdue University, Indianapolis, IN.
Department of Social and Behavioral Sciences, IU Fairbanks School of Public Health at IUPUI.
J Clin Rheumatol. 2022 Jan 1;28(1):e203-e209. doi: 10.1097/RHU.0000000000001684.
BACKGROUND/OBJECTIVE: The aim of this study was to identify psychological factors that influence moderate-vigorous physical activity (MVPA) participation in patients with fibromyalgia.
In this secondary data analysis, 170 patients received personalized exercise plans and completed baseline and follow-up assessments of self-reported physical activity at weeks 12, 24, and 36. Structural equation modeling was used to examine the predictive strengths of psychological factors (exercise self-efficacy, perceived barriers, and intention) on MVPA participation.
Using a threshold increase in MVPA of 10 or greater metabolic equivalent hours per week (MET h/wk), 3 groups were defined based on subjects who achieved a minimum increase of 10 MET h/wk that was sustained for at least 12 weeks (SUS-PA), achieved an increase of 10 MET h/wk that was not sustained for at least 12 weeks (UNSUS-PA), and did not achieve an increase of 10 MET h/wk (LO-PA). Increases in exercise self-efficacy and intention and reductions in perceived barriers were associated with increased volume of PA, showing the greatest change in the SUS-PA, followed by UNSUS-PA. For the LO-PA group, there was no change in exercise self-efficacy, a decrease in intention, and an increase in barriers. Using path analysis, exercise self-efficacy and perceived barriers were associated with higher volumes of physical activity via greater intention to engage in MVPA.
For patients with fibromyalgia, exercise self-efficacy, perceived barriers, and intention to exercise are important constructs for increasing physical activity. Our findings provide guidance for practitioners who seek to promote physical activity in fibromyalgia and suggestions for researchers aiming to improve prediction models.
背景/目的：本研究旨在确定影响纤维肌痛患者中中等至剧烈体力活动（MVPA）参与的心理因素。
在这项二次数据分析中，170 名患者接受了个性化的运动计划，并在第 12、24 和 36 周完成了基线和随访时自我报告体力活动的评估。结构方程模型用于检验心理因素（运动自我效能感、感知障碍和意向）对 MVPA 参与的预测强度。
使用每周增加 10 或更多代谢当量小时（MET h/wk）的 MVPA 阈值增加，根据至少 12 周内持续增加 10 MET h/wk 且至少增加 10 MET h/wk 的患者定义了 3 组持续至少 12 周（SUS-PA），增加 10 MET h/wk 但未持续至少 12 周（UNSUS-PA），且未增加 10 MET h/wk（LO-PA）。运动自我效能感和意向的增加以及感知障碍的减少与 PA 量的增加相关，SUS-PA 组的变化最大，其次是 UNSUS-PA 组。对于 LO-PA 组，运动自我效能感没有变化，意向下降，障碍增加。通过路径分析，运动自我效能感和感知障碍通过更高的 MVPA 意向与更高的体力活动量相关。
对于纤维肌痛患者，运动自我效能感、感知障碍和锻炼意向是增加体力活动的重要因素。我们的发现为寻求促进纤维肌痛患者体力活动的从业者提供了指导，并为旨在改善预测模型的研究人员提供了建议。
