Stolte Elske, Hopman-Rock Marijke, Aartsen Marja J, van Tilburg Theo G, Chorus Astrid
J Aging Phys Act. 2017 Jul;25(3):438-445. doi: 10.1123/japa.2016-0182. Epub 2017 Jun 12.
The predictive value of the Theory of Planned Behavior (TPB) on intention and physical activity (PA) over time was examined. Data from the Aging Well and Healthily intervention program (targeting perceived behavioral control and attitude, not subjective norm) were analyzed, including pretest (T0), posttest (T1, except subjective norm) and 4-6 months follow-up (T2, PA outcomes only) (N = 387, M age 72 years). Structural equation modeling was used to test a TPB model. PA was measured subjectively using the Voorrips sports subscale (T0 and T2), items measured perceived increase in PA (T1), and adherence to exercises (T1 and T2). Model fit was good. The TPB explained variation in intention well (R .54-.60) and some PA behavior (R .13-.16). The intervention successfully got participants to exercise independent of the measured TPB concepts. More TPB studies in the context of interventions are needed.
研究了计划行为理论（TPB）对意图和身体活动（PA）随时间变化的预测价值。分析了来自“健康老龄化”干预项目的数据（该项目针对的是感知行为控制和态度，而非主观规范），包括前测（T0）、后测（T1，主观规范除外）和4 - 6个月随访（T2，仅PA结果）（N = 387，平均年龄72岁）。采用结构方程模型来检验TPB模型。PA通过Voorrips运动子量表进行主观测量（T0和T2），相关条目测量PA的感知增加（T1）以及运动依从性（T1和T2）。模型拟合良好。TPB能很好地解释意图的变化（R = 0.54 - 0.60）以及一些PA行为（R = 0.13 - 0.16）。该干预成功促使参与者进行锻炼，且与所测量的TPB概念无关。在干预背景下需要更多的TPB研究。
