School of Nursing, University of Minnesota, Minneapolis, MN, USA.
School of Kinesiology, University of Minnesota, Minneapolis, MN, USA.
West J Nurs Res. 2020 Aug;42(8):581-592. doi: 10.1177/0193945919871697. Epub 2019 Aug 30.
The purpose of this study was to examine psychosocial constructs targeted as potential mediators in a prior physical activity (PA) intervention study. This secondary analysis used data from 102 older adults randomized to one of four conditions-within a 2 (Interpersonal Strategies: yes, no) x 2 (Intrapersonal Strategies: yes, no) factorial design. We tested intervention effects on social support, self-efficacy, self-regulation, and goal attainment, and whether these constructs mediated intervention effects on PA. Participants who received interventions with interpersonal strategies, compared to those who did not, increased their readiness (post-intervention), the self-regulation subscale of self-assessment, and goal attainment (post-intervention, 6-months). Participants who received interventions with intrapersonal strategies, compared to those who did not, increased their social support from family (post-intervention). There was no statistically significant mediation. To understand mechanisms through which interventions increase older adults' PA and to improve intervention effectiveness, researchers should continue to examine potential psychosocial mediators.Clinical Trial Registry: NCT02433249.
本研究旨在检验先前一项身体活动（PA）干预研究中作为潜在中介的心理社会结构。这项二次分析使用了来自 102 名老年人的数据，他们被随机分配到四组中的一组 - 2（人际策略：是，否）x 2（内在策略：是，否）因子设计。我们测试了干预对社会支持、自我效能、自我调节和目标实现的影响，以及这些结构是否介导了干预对 PA 的影响。与未接受人际策略干预的参与者相比，接受人际策略干预的参与者的准备度（干预后）、自我评估的自我调节子量表和目标实现（干预后，6 个月）有所增加。与未接受内在策略干预的参与者相比，接受内在策略干预的参与者从家庭获得的社会支持有所增加。没有统计学上的显著中介作用。为了了解干预措施如何通过心理社会机制增加老年人的 PA 并提高干预效果，研究人员应继续研究潜在的心理社会中介因素。临床试验注册：NCT02433249。
