Social-cognitive theory variables as correlates of sedentary behavior in multiple sclerosis: Preliminary evidence
Social-cognitive theory variables as correlates of sedentary behavior in multiple sclerosis: Preliminary evidence
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DOI：
10.1016/j.dhjo.2019.05.002
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发表时间：
2019-10-01
影响因子：
4.5
通讯作者：
Jeng, Brenda
中科院分区：
文献类型：
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作者：
Motl, Robert W.;Sasaki, Jeffer E.;Jeng, Brenda
背景：多发性硬化症 (MS) 患者的久坐行为远多于一般人群中的成年人。 目的：假设：这项初步横断面研究检验了社会认知理论 (SCT) 变量与 MS 久坐行为的相关性。我们假设久坐行为变化的 SCT 变量得分与多发性硬化症患者自我报告和设备测量的久坐行为量得分相关。我们进一步假设，自我报告的久坐行为的相关性比设备测量的久坐行为更强，并且久坐行为的主要相关性将是自我效能。 方法：我们通过随机抽样招募了 1,000 名参加 MS 注册研究委员会的参与者，在 296 名接受筛查的人中，有 275 人自愿参加这项研究。参与者在腰间佩戴 ActiGraph 加速度计，用于测量每天久坐行为的分钟数。参与者进一步完成了新创建的、针对研究的 SCT 变量测量，以减少久坐行为（即自我效能、结果期望、障碍、目标设定和规划），并完成了缩写的国际体育活动问卷，作为自我报告的久坐时间测量。结果：自我报告的久坐行为与自我效能 (r = -0.47)、目标设定 (r = -0.31)、规划 (r = -0.35），以及减少久坐行为的障碍（r = 0.39）。设备测量的久坐行为与自我效能 (r = -0.32)、目标设定 (r = -0.21)、计划 (r = -0.18) 和障碍 (r = 0.20) 相关。自我效能（beta = -0.29）、障碍（beta = 0.26）和计划（beta = -0.24）独立解释了自我报告的久坐行为的差异（R-2 = 0.33）。只有自我效能 (beta = -0.32) 能够独立解释设备测量的久坐行为的差异 (R-2 = 0.10)。结论：SCT 结构可能是减少 MS 久坐行为的行为干预的合理目标。 (c) 2019 Elsevier Inc. 保留所有权利。
Background: Persons with multiple sclerosis (MS) engage in substantially more sedentary behavior than adults from the general population.Objective: Hypothesis: This preliminary, cross-sectional study examined social-cognitive theory (SCT) variables as correlates of sedentary behavior in MS. We hypothesized that scores from SCT variables for sedentary behavior change would correlate with scores from self-reported and device-measured volumes of sedentary behavior in MS. We further hypothesized that the correlations would be stronger for self-reported than device-measured sedentary behavior, and that the primary correlate of sedentary behavior would be self-efficacy.Methods: We recruited participants through a random sample of 1,000 persons enrolled in the North American Research Committee on MS registry, and 275 of the 296 persons who underwent screening volunteered for the study. Participants wore an ActiGraph accelerometer on a belt around the waist for measuring minutes per day of sedentary behavior. Participants further completed a newly-created, study-specific measure of SCT variables for reducing sedentary behavior (i.e., self-efficacy, outcome expectations, barriers, goal setting, & planning) and the abbreviated International Physical Activity Questionnaire as a self-report measure of sitting time.Results: Self-reported sedentary behavior was associated with self-efficacy (r = -0.47), goal setting (r = -0.31), planning (r = -0.35), and barriers (r = 0.39) for reducing sedentary behavior. Device-measured sedentary behavior was associated with self-efficacy (r = -0.32), goal setting (r = -0.21), planning (r = -0.18), and barriers (r = 0.20). Self-efficacy (beta = -0.29), barriers (beta = 0.26), and planning (beta = -0.24) independently explained variance in self-reported sedentary behavior (R-2 = 0.33). Only self-efficacy (beta = -0.32) independently explained variance in device-measured sedentary behavior (R-2 = 0.10).Conclusion: SCT constructs might be reasonable targets of a behavioral intervention for reducing sedentary behavior in MS. (c) 2019 Elsevier Inc. All rights reserved.