Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK.
National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care West (CLAHRC West), University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
BMC Public Health. 2019 Sep 2;19(1):1203. doi: 10.1186/s12889-019-7545-z.
Few adolescent girls engage in enough physical activity (PA) to meet recommendations and there is a need for new interventions to increase girls PA. We have previously published the results of the PLAN-A cluster randomised feasibility trial which was a peer-led school-based PA intervention, showing that the intervention was feasible and held promise to increase the PA of girls aged 12-13 years. In PLAN-A, pupils nominated by their peers as influential attend training to teach them how to influence, promote and normalise physical activity amongst their peer-group. This paper reports the results of the process evaluation of the PLAN-A feasibility study, specifically focussing on acceptability to key stakeholders, intervention fidelity, receipt/experiences and perceived effect and suggested intervention refinements before proceeding to a definitive RCT.
A mixed-methods process evaluation triangulated data from qualitative focus groups and interviews with peer-supporter and non peer-supporter pupils (N = 52), parents (N = 12), teachers (N = 6) and intervention training deliverers (N = 5), quantitative questionnaires, and observations of intervention delivery. Quantitative data were analysed descriptively, and qualitative data were analysed with the Framework Method.
The duration, timings, content and delivery of the peer-supporter training were acceptable. There was good fidelity to the intervention manual and its underpinning theory including high fulfilment of session objectives and use of an autonomy-supportive motivational style. Peer-supporters engaged with and enjoyed the training and retained key peer-supporter messages (what counts as PA, encouragement, empathy and subtlety). Parents and teachers were supportive of the intervention and reported perceived effects including increased PA and awareness of it, improved peer relationships, and confidence. Suggested intervention refinements included increasing participatory learning, reducing technical jargon, and providing more support to overcome challenges to giving peer support.
PLAN-A can be delivered as planned, is well-received, and appears to be effective in empowering adolescent girls to support their peer group to become more active. The refinements identified can be made within the original intervention structure, before proceeding to a definitive trial.
ISCTRN, ISRCTN12543546 , Registered on 28/7/2015.
很少有青春期女孩进行足够的身体活动（PA）以达到建议标准，因此需要新的干预措施来增加女孩的 PA。我们之前已经公布了 PLAN-A 群组随机可行性试验的结果，该试验是一种以同伴为基础的 PA 干预措施，结果表明该干预措施是可行的，并有望增加 12-13 岁女孩的 PA。在 PLAN-A 中，由同伴提名的有影响力的学生接受培训，以教导他们如何在同伴群体中影响、促进和使身体活动正常化。本文报告了 PLAN-A 可行性研究的过程评估结果，特别是重点关注关键利益相关者的可接受性、干预的忠实度、接受/经验和感知效果以及在进行确定性 RCT 之前提出的干预措施改进建议。
混合方法的过程评估结合了来自同伴支持者和非同伴支持者学生（N=52）、家长（N=12）、教师（N=6）和干预培训者（N=5）的定性焦点小组和访谈、定量问卷以及干预措施实施的观察数据。定量数据进行描述性分析，定性数据采用框架方法进行分析。
同伴支持者培训的持续时间、时间安排、内容和交付方式是可以接受的。干预手册及其基础理论的忠实度很高，包括高完成课程目标和使用自主支持的动机风格。同伴支持者参与并享受培训，并保留了关键的同伴支持者信息（什么算作 PA、鼓励、同理心和微妙）。家长和教师都支持该干预措施，并报告了感知效果，包括增加 PA 以及对 PA 的认识、改善同伴关系和信心。建议的干预措施改进包括增加参与式学习、减少技术术语和为克服提供同伴支持的挑战提供更多支持。
可以按计划实施 PLAN-A，该计划受到欢迎，并且似乎可以有效地增强青春期女孩的能力，使她们能够支持自己的同伴群体更加活跃。在进行确定性试验之前，可以在原始干预结构内进行确定的改进。
ISCTRN，ISRCTN87564364，于 2015 年 7 月 28 日注册。
