Dept of Health, Physical Education, and Recreation, University of Nebraska at Omaha, USA.
J Phys Act Health. 2011 Sep;8 Suppl 2:S249-56.
The purpose of this study was to determine the effectiveness of Ready for Recess: an elementary school recess intervention targeting staff training (ST) and providing recreational equipment (EQ).
Ready for Recess had 4 intervention schools: 1) EQ+ST, 2) EQ, 3) ST, and 4) control. Moderate-to-vigorous physical activity (MVPA) was assessed with accelerometers at the four schools in 257 3rd- to 6th-grade children. Random intercept models for overweight/obese (OWOB) and healthy weight (HW) for boys and girls separately, examined change in percentage of time spent in MVPA during recess across EQ+ST, EQ, and ST compared with the control from baseline to postintervention.
HW boys receiving EQ+ST increased MVPA by 19.4%, OWOB boys receiving ST increased MVPA by 4.5%, OWOB girls receiving EQ-ST increased MVPA by 6.0%, while HW girls receiving EQ decreased MVPA by 13.6% in comparison with the control.
Ready for Recess represents a possible means to increase MVPA in OWOB girls/boys, populations least likely to meet MVPA recommendations. However, the effect of the intervention was not uniform across all subgroups.
本研究旨在确定 Ready for Recess 的有效性：一项针对工作人员培训 (ST) 和提供娱乐设备 (EQ) 的小学课间休息干预措施。
Ready for Recess 有 4 所干预学校：1) EQ+ST，2) EQ，3) ST，和 4) 对照组。在 4 所学校的 257 名 3 至 6 年级儿童中，使用加速度计评估中度到剧烈体力活动 (MVPA)。对于男孩和女孩，分别使用随机截距模型，针对超重/肥胖 (OWOB) 和健康体重 (HW)，比较 EQ+ST、EQ 和 ST 组与对照组从基线到干预后的课间 MVPA 时间百分比的变化。
接受 EQ+ST 的 HW 男孩 MVPA 增加了 19.4%，接受 ST 的 OWOB 男孩 MVPA 增加了 4.5%，接受 EQ-ST 的 OWOB 女孩 MVPA 增加了 6.0%，而接受 EQ 的 HW 女孩 MVPA 减少了 13.6%与对照组相比。
Ready for Recess 可能是增加 OWOB 女孩/男孩中 MVPA 的一种手段，这些人群最不可能达到 MVPA 推荐标准。然而，干预的效果并不是所有亚组都一致的。
