Physical Activity and Well-being Research Group, Curtin University, Perth, Australia.
School of Psychology, Curtin University, Perth, Australia.
PLoS Med. 2020 Aug 6;17(8):e1003136. doi: 10.1371/journal.pmed.1003136. eCollection 2020 Aug.
Recent evidence shows that sport settings can act as a powerful draw to engage men in weight loss. The primary objective of this pilot study was to test the feasibility of delivering and to evaluate preliminary efficacy of Aussie-FIT, a weight-loss program for men with overweight/obesity delivered in Australian Football League (AFL) settings, in preparation for a future definitive trial.
This 6-month pilot trial took place in Perth, Australia. Participants were overweight/obese (Body Mass Index [BMI] ≥ 28 kg/m2), middle-aged (35-65 years old) men. Participants were recruited in May 2018, and the intervention took place between June and December 2018. The intervention involved 12 weekly 90-min face-to-face sessions, incorporating physical activity, nutrition, and behaviour change information and practical activities delivered by coaches at 2 clubs. Data were collected at baseline and immediately postintervention. For trial feasibility purposes, 6-month follow-ups were completed. Outcomes were differences in weight loss (primary outcome) and recruitment and retention rates, self-reported measures (for example, psychological well-being), device-measured physical activity, waist size, and blood pressure at 3 months. Within 3 days of advertising at each club, 426 men registered interest; 306 (72%) were eligible. Men were selected on a first-come first-served basis (n = 130; M age = 45.8, SD = 8; M BMI = 34.48 kg/m2, SD = 4.87) and randomised by a blinded researcher. Trial retention was 86% and 63% at 3- and 6-month follow-ups (respectively). No adverse events were reported. At 3 months, mean difference in weight between groups, adjusted for baseline weight and group, was 3.3 kg (95% CI 1.9, 4.8) in favour of the intervention group (p < 0.001). The intervention group's moderate-to-vigorous physical activity (MVPA) was higher than the control group by 8.54 min/day (95% CI 1.37, 15.71, p = 0.02). MVPA among men attracted to Aussie-FIT was high at baseline (intervention arm 35.61 min/day, control arm 38.38 min/day), which may have limited the scope for improvement.
Aussie-FIT was feasible to deliver; participants increased physical activity, decreased weight, and reported improvements in other outcomes. Issues with retention were a limitation of this trial. In a future, fully powered randomised controlled trial (RCT), retention could be improved by conducting assessments outside of holiday seasons.
Australian New Zealand Clinical Trials Registry: ACTRN12617000515392.
最近的证据表明，运动环境可以成为吸引男性参与减肥的有力因素。本初步研究的主要目的是测试在澳大利亚足球联盟（AFL）环境中为超重/肥胖男性提供减肥计划 Aussie-FIT 的可行性，并为未来的确定性试验做准备。
这是一项为期 6 个月的初步试验，在澳大利亚珀斯进行。参与者为超重/肥胖（体重指数[BMI]≥28kg/m2）、中年（35-65 岁）男性。参与者于 2018 年 5 月招募，并于 2018 年 6 月至 12 月进行干预。干预包括 12 次每周 90 分钟的面对面课程，由教练提供体育活动、营养和行为改变信息以及实用活动。数据在基线和干预后立即收集。为了试验可行性目的，进行了 6 个月的随访。主要结果是体重减轻（主要结果）以及招募和保留率、自我报告的测量（例如，心理健康）、设备测量的身体活动、腰围和血压的变化。在每个俱乐部的广告发布后 3 天内，有 426 名男性表示有兴趣；306 名（72%）符合条件。男性按先来先服务的原则选择（n=130；M 年龄=45.8，SD=8；M BMI=34.48kg/m2，SD=4.87），并由一名盲法研究人员进行随机分组。3 个月和 6 个月随访时的试验保留率分别为 86%和 63%（分别）。没有报告不良事件。在 3 个月时，经基线体重和组调整后，两组之间的体重差异为 3.3kg（95%CI 1.9,4.8），干预组更有利（p<0.001）。与对照组相比，干预组的中等至剧烈体力活动（MVPA）每天增加 8.54 分钟（95%CI 1.37,15.71，p=0.02）。Aussie-FIT 吸引的男性的 MVPA 基线较高（干预组 35.61 分钟/天，对照组 38.38 分钟/天），这可能限制了改善的范围。
Aussie-FIT 可以进行推广；参与者增加了体力活动，减轻了体重，并报告了其他方面的改善。保留方面的问题是本试验的一个局限性。在未来的、完全有力量的随机对照试验（RCT）中，通过在假期之外进行评估可以提高保留率。
澳大利亚和新西兰临床试验注册中心：ACTRN12617000515392。
