Diabetes Research Centre, University of Leicester, Leicester, UK.
NIHR Leicester Biomedical Research Centre, Leicester, UK.
Int J Behav Nutr Phys Act. 2018 Apr 25;15(1):40. doi: 10.1186/s12966-018-0664-6.
Globally, adolescent girls' physical activity (PA) levels are low. The 'Girls Active' secondary school-based programme, developed by the Youth Sport Trust, aims to increase PA in adolescent girls. This paper explores the effectiveness of the 'Girls Active' school-based PA programme.
A random sample of girls aged 11-14 from 20 secondary schools (Midlands, UK) participated in a two-arm cluster randomised controlled trial. Ten schools received Girls Active and 10 continued with usual practice. Measurements were taken at baseline, seven- and 14-month follow-up.
wrist-worn accelerometer measured moderate- to vigorous-intensity PA (MVPA).
overall PA, light PA, sedentary time, body composition, and psychosocial outcomes. Generalised estimating equations, adjusted for school cluster and potential confounders, were used and A priori subgroup analysis was undertaken. Micro-costing and cost-consequence analyses were conducted using bespoke collection methods on programme delivery information. Outcomes for the cost-consequence analysis were health related quality of life measured by the Child Health Utility-9D and service use.
Overall, 1752 pupils participated, 1211 (69.1%) provided valid 14-month accelerometer data. No difference in MVPA (mins/day; 95% confidence intervals) was found at 14 months (1.7; -0.8 to 4.3), there was at seven months (2.4; 0.1 to 4.7). Subgroup analyses showed significant intervention effects on 14-month in larger schools (3.9; 1.39 to 6.09) and in White Europeans (3.1; 0.60 to 6.02) and in early maturers (5.1; 1.69 to 8.48) at seven months. The control group did better in smaller schools at 14-months (-4.38; -7.34 to -1.41). Significant group differences were found in 14-month identified motivation (-0.09; -0.18 to -0.01) and at seven months in: overall PA (1.39 mg/day; 0.1 to 2.2), after-school sedentary time (-4.7; -8.9 to -0.6), whole day (5.7; 1.0 to 10.5) and school day (4.5; 0.25 to 8.75) light PA, self-esteem. Small, statistically significant, differences in some psychosocial variables favoured control schools. Micro-costing demonstrated that delivering the programme resulted in a range of time and financial costs at each school. Cost-consequence analysis demonstrated no effect of the programme for health related quality of life or service use.
Compared with usual practice, 'Girls Active' did not affect 14-month MVPA.
ISRCTN10688342.
全球范围内，青少年女孩的身体活动（PA）水平较低。“Girls Active”是由青年体育信托基金会开发的一项基于中学的项目，旨在提高青少年女孩的身体活动水平。本文探讨了“Girls Active”基于学校的身体活动项目的有效性。
从英国中部的 20 所中学中随机抽取年龄在 11-14 岁的女孩参加了一项两臂随机对照试验。10 所学校接受了“Girls Active”，10 所学校继续采用常规做法。在基线、7 个月和 14 个月的随访时进行了测量。
手腕佩戴的加速度计测量中度至剧烈强度的身体活动（MVPA）。
总体身体活动、轻度身体活动、久坐时间、身体成分和心理社会结局。使用广义估计方程，根据学校聚类和潜在混杂因素进行调整，并进行了预先设定的亚组分析。使用专门收集的项目交付信息进行微成本和成本效益分析。成本效益分析的结果是通过儿童健康效用-9D 测量的健康相关生活质量和服务利用。
共有 1752 名学生参与，1211 名（69.1%）提供了 14 个月有效的加速度计数据。在 14 个月时，MVPA 没有差异（分钟/天；95%置信区间）（1.7；-0.8 至 4.3），在 7 个月时存在差异（2.4；0.1 至 4.7）。亚组分析表明，在较大的学校（3.9；1.39 至 6.09）、白种欧洲人（3.1；0.60 至 6.02）和早熟者（5.1；1.69 至 8.48）中，干预对 14 个月的影响具有统计学意义。在 14 个月时，对照组在较小的学校中表现更好（-4.38；-7.34 至 -1.41）。在 14 个月时，在确定的动机方面发现了显著的组间差异（-0.09；-0.18 至 -0.01），在 7 个月时，在以下方面发现了总体身体活动（1.39mg/天；0.1 至 2.2）、课后久坐时间（-4.7；-8.9 至 -0.6）、全天（5.7；1.0 至 10.5）和学校日（4.5；0.25 至 8.75）的轻度身体活动、自尊。在一些心理社会变量方面，有统计学意义的小差异有利于对照组。微观成本核算表明，在每所学校实施该方案都会产生一系列的时间和财务成本。成本效益分析表明，该方案对健康相关生活质量或服务利用没有影响。
与常规做法相比，“Girls Active”并未对 14 个月的 MVPA 产生影响。
ISRCTN86562103.
