Faculty of Nursing, Yamanashi Prefectural University, Kofu, Yamanashi 400-0062, Japan.
Department of Health Sciences, Basic Science for Clinical Medicine, Division of Medicine, Graduate School Department of Interdisciplinary Research, University of Yamanashi, Chuo, Yamanashi 409-3898, Japan.
Int J Environ Res Public Health. 2021 Mar 24;18(7):3351. doi: 10.3390/ijerph18073351.
School-based programmes need to be effective, easy for all, easy to perform within a short duration, and inexpensive. However, no studies have reported whether voluntarily and very short-time active play programmes contribute to improved health outcomes. This study aims to describe the GRoup activity, Active Play and Exercise (GRAPE) cluster randomised controlled trial that examined whether active play interventions of very short durations contribute to increasing physical activity (PA) and bone mass among school-aged children. The trial was conducted in 2018 from January to June, and the activity comprised ≥2 children jumping together for approximately 10 s per session, at least five times a day (approximately 1 min/day). School clusters, pair-matched as per school size (total number of children) and region, were randomly allocated to either intervention or wait-list control groups. The primary outcomes comprised objectively measured changes in PA levels (moderate-to-vigorous PA) evaluated using wrist-worn activity trackers from baseline to the one-year follow-up (six-month post-intervention follow-up) and changes in bone mass evaluated using calcaneus quantitative ultrasound parameters. This study could describe the problems and challenges in school-based PA intervention studies and present findings that could make a potentially important contribution to health education and PA promotion.
学校为基础的方案需要是有效的，对所有人都容易，在短时间内易于执行，并且成本低廉。然而，没有研究报告表明自愿的和非常短时间的积极游戏方案是否有助于改善健康结果。本研究旨在描述 GRoup 活动、积极游戏和锻炼（GRAPE）集群随机对照试验，该试验研究了非常短时间的积极游戏干预是否有助于增加学龄儿童的身体活动（PA）和骨量。该试验于 2018 年 1 月至 6 月进行，活动包括≥2 名儿童一起跳跃，每次约 10 秒，每天至少 5 次（每天约 1 分钟）。按照学校规模（儿童总数）和地区进行配对的学校集群被随机分配到干预组或等待名单对照组。主要结果包括使用腕戴活动追踪器从基线到一年随访（干预后 6 个月随访）评估的 PA 水平（中等到剧烈 PA）的客观变化，以及使用跟骨定量超声参数评估的骨量变化。本研究可以描述学校为基础的 PA 干预研究中的问题和挑战，并提出可能对健康教育和 PA 促进做出重要贡献的发现。
