Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle, UK.
Patient Educ Couns. 2012 Apr;87(1):108-19. doi: 10.1016/j.pec.2011.08.003. Epub 2011 Sep 9.
To test and optimize the feasibility and acceptability of a physical activity (PA) and healthy eating behavior change intervention for obese adults with obesity-related co-morbidities or additional risk factors for co-morbidities.
Open-pilot intervention study using an uncontrolled pre and post design with ongoing measures on intervention acceptability and feasibility. Participants received 5 weekly nurse-led one-hour long group sessions. Acceptability and feasibility were assessed throughout. PA, dietary behavior and weight were measured before and after the intervention.
Of 74 consenting participants, 61 (82%) received and 47 (64%) completed the intervention. Average ratings of intervention materials and components by participants ranged between 4.1 and 4.9 out of 5. Average facilitator satisfaction rating was 90% (range 75-100%). The intervention delivery was feasible as indicated by ratings and comments from participants and the facilitator. Participants lost -0.86 kg of weight t(45)=3.84, p=0.0001, and increased PA by an additional 1.6 (SD=2.7) sessions/week, t(31)=-3.3, p=0.002. No significant dietary differences emerged.
The intervention was acceptable to the facilitator and participants and feasible for delivery. Several intervention aspects were further optimized.
The current study outlines a PA and dietary behavior change pilot intervention coupled with a systematic and transparent process of intervention optimization.
测试和优化肥胖合并肥胖相关合并症或合并症额外风险因素的成年人的身体活动（PA）和健康饮食行为改变干预的可行性和可接受性。
采用开放先导干预研究，采用非对照前后设计，持续评估干预的可接受性和可行性。参与者接受了 5 周每周一次的护士主导的一小时小组课程。在整个过程中评估了可接受性和可行性。在干预前后测量 PA、饮食行为和体重。
在 74 名同意参与的参与者中，有 61 名（82%）接受了干预，有 47 名（64%）完成了干预。参与者对干预材料和组成部分的平均评价介于 5 分制的 4.1 至 4.9 分之间。平均满意度评分为 90%（范围为 75-100%）。根据参与者和 facilitator 的评价和意见，干预的实施是可行的。参与者体重减轻了-0.86 公斤，t(45)=3.84，p=0.0001，PA 额外增加了 1.6（SD=2.7）次/周，t(31)=-3.3，p=0.002。饮食方面没有出现显著差异。
该干预措施对 facilitator 和参与者是可接受的，并且可以实施。几个干预方面得到了进一步优化。
本研究概述了一项 PA 和饮食行为改变的先导干预措施，并结合了系统和透明的干预优化过程。
