Trial reportThe international journal of behavioral nutrition and physical activity2014
Randomised feasibility trial of a teaching assistant led extracurricular physical activity intervention for 9 to 11 year olds: Action 3:30.
Trial report in The international journal of behavioral nutrition and physical activity, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 4 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Are school-based behavioural interventions an effective strategy for improving physical activity and sedentary behaviour in children and adolescents? A meta-analysis.Frontiers in pediatrics · 2025Pooled it
- The Effectiveness of Fundamental Movement Skill Interventions on Moderate to Vigorous Physical Activity Levels in 5- to 11-Year-Old Children: A Systematic Review and Meta-Analysis.Sports medicine (Auckland, N.Z.) · 2022Pooled it
- Interventions in outside-school hours childcare settings for promoting physical activity amongst schoolchildren aged 4 to 12 years.The Cochrane database of systematic reviews · 2021Pooled it
- School-based physical activity programs for promoting physical activity and fitness in children and adolescents aged 6 to 18.The Cochrane database of systematic reviews · 2021Pooled it
- Rethinking children's physical activity interventions at school: A new context-specific approach.Frontiers in public health · 2023Trial
- Trial
- Action 3:30R: process evaluation of a cluster randomised feasibility study of a revised teaching assistant-led extracurricular physical activity intervention for 8 to 10 year olds.BMC public health · 2019Trial
- Action 3:30R: Results of a Cluster Randomised Feasibility Study of a Revised Teaching Assistant-Led Extracurricular Physical Activity Intervention for 8 to 10 Year Olds.International journal of environmental research and public health · 2019Trial
- Economic evaluation of a group randomized controlled trial on healthy eating and physical activity in afterschool programs.Preventive medicine · 2018Trial
- Process evaluation of the Bristol girls dance project.BMC public health · 2016Trial
- Trial
- Promoting Physical Activity With the Out of School Nutrition and Physical Activity (OSNAP) Initiative: A Cluster-Randomized Controlled Trial.JAMA pediatrics · 2016Trial
- Effect and cost of an after-school dance programme on the physical activity of 11-12 year old girls: The Bristol Girls Dance Project, a school-based cluster randomised controlled trial.The international journal of behavioral nutrition and physical activity · 2015Trial
- Increasing children's physical activity through a teaching-assistant led extracurricular intervention: process evaluation of the action 3:30 randomised feasibility trial.BMC public health · 2015Trial
- Feasibility of LifeLab Dublin: a co-designed health literacy intervention for socioeconomic disadvantaged schools.Health promotion international · 2026Article
- Do the effects of interventions aimed at the prevention of childhood obesity reduce inequities? A re-analysis of randomized trial data from two Cochrane reviews.EClinicalMedicine · 2025Article
- School-level intra-cluster correlation coefficients and autocorrelations for children's accelerometer-measured physical activity in England by age and gender.BMC medical research methodology · 2024Article
- Systematic review of the characteristics of school-based feasibility cluster randomised trials of interventions for improving the health of pupils in the UK.Pilot and feasibility studies · 2022Review
- The association of school-related active travel and active after-school clubs with children's physical activity: a cross-sectional study in 11-year-old UK children.The international journal of behavioral nutrition and physical activity · 2019Article
- Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
backgroundExtracurricular programmes could provide a mechanism to increase the physical activity (PA) of primary-school-aged children. The aim of this feasibility study was to examine whether the Action 3:30 intervention, which is delivered by teaching assistants, holds promise as a means of increasing the PA of Year 5 and 6 children.
methodsA cluster randomised feasibility trial was conducted in 20 primary schools. Ten schools received the Action 3:30 intervention and 10 schools were allocated to the control arm. The intervention was 40 one-hour sessions, delivered twice a week by teaching assistants. The proportion of participants recruited per school was calculated. Session delivery and session attendance was calculated for intervention schools. Weekday and after-school (3.30 to 8.30 pm) moderate to vigorous intensity physical (MVPA) was assessed by accelerometer at baseline (T0), during the last few weeks of the intervention (T1) and four months after the intervention had ended (T2). The costs of delivering the intervention were estimated.
resultsFive intervention schools ran all 40 of the intended sessions. Of the remaining five, three ran 39, one ran 38 and one ran 29 sessions. Mean attendance was 53%. The adjusted difference in weekday MVPA at T1 was 4.3 minutes (95% CI -2.6 to 11.3). Sex-stratified analyses indicated that boys obtained 8.6 more minutes of weekday MVPA than the control group (95% CI 2.8 to 14.5) at T1 with no effect for girls (0.15 minutes, 95% CI -9.7 to 10.0). There was no evidence that participation in the programme increased MVPA once the club sessions ceased (T2). The indicative average cost of this intervention was £2,425 per school or £81 per participating child during its first year and £1,461 per school or £49 per participating child thereafter.
conclusionsThe effect of the Action 3:30 intervention was comparable to previous physical activity interventions but further analysis indicated that there was a marked sex difference with a positive impact on boys and no evidence of an effect on girls. The Action 3:30 intervention holds considerable promise but more work is needed to enhance the effectiveness of the intervention, particularly for girls.
trial registrationISRCTN58502739.
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