Jalali Somayeh, Roozbahani Nasrin, Shamsi Mohsen
Department of Health Education, School of Health, Arak University of Medical Sciences, Arak, Iran.
Malays J Med Sci. 2022 Aug;29(4):140-151. doi: 10.21315/mjms2022.29.4.13. Epub 2022 Aug 29.
Although physical activity (PA) is essential, it is difficult to motivate people to take part in PA, especially the ones with high blood pressure (hypertension). One of the most commonly applied theoretical frameworks to change health behaviours is the Trans-Theoretical Model (TTM). The aim of this study was to examine the effectiveness of tailored, interactive multimedia software based on TTM for the promotion of PA behaviours among Iranian adults.
This interventional study selected 120 healthy individuals aged 30 years old-50 years old from health centres in Delijan, Iran using multi-stage sampling. The participants were in the pre-contemplation and contemplation stages of PA behaviour. For the intervention, an active multimedia training (active life) based on TTM, like six training sessions of approximately 30 min (once a week) plus aerobic exercise videos were designed and provided to the intervention group. Data was collected using a valid and reliable questionnaire before and 6 months after the intervention and analysed using statistical tests.
The mean age of the participants was 38.20 (SD = 7.11) years old. Six months after the intervention, 61.7% of the individuals in the intervention group and 3.3% in the control group progressed to the action stage, which was significant only in the intervention group ( < 0.001). There was a significant increase in PA in both groups, yet this increase was significantly higher in the intervention group (36.02 [SD = 31.22] to 146.16 [SD = 90.43]; < 0.001) compared to the control group (33.41 [SD = 28.33] to 54.41 [SD = 44.02; < 0.001).
The results obtained indicated that the implementation of educational intervention using multimedia designed based on TTM could be used as one of the effective strategies to promote PA to prevent hypertension in adults.
尽管体育活动至关重要，但激励人们参与体育活动却很困难，尤其是高血压患者。跨理论模型（TTM）是最常用于改变健康行为的理论框架之一。本研究旨在探讨基于TTM的定制交互式多媒体软件对促进伊朗成年人体育活动行为的有效性。
本干预性研究采用多阶段抽样方法，从伊朗德立詹的健康中心选取了120名30至50岁的健康个体。参与者处于体育活动行为的前意向和意向阶段。对于干预组，设计并提供了基于TTM的主动多媒体训练（积极生活），如六次约30分钟的训练课程（每周一次）以及有氧运动视频。在干预前后使用有效且可靠的问卷收集数据，并通过统计检验进行分析。
参与者的平均年龄为38.20（标准差=7.11）岁。干预六个月后，干预组61.7%的个体进入行动阶段，而对照组为3.3%，仅干预组有显著变化（<0.001）。两组的体育活动均显著增加，但干预组的增加幅度显著高于对照组（从36.02[标准差=31.22]增至146.16[标准差=90.43]；<0.001），而对照组从33.41[标准差=28.33]增至54.41[标准差=44.02；<0.001]）。
所得结果表明，基于TTM设计的多媒体教育干预的实施可作为促进体育活动以预防成年人高血压的有效策略之一。
