Purpose: To identify associations between amount of school recess provision and children’s physical activity (PA), weight status, adiposity, cardiorespiratory endurance, muscular strength, and muscular endurance. Method: Data from 6- to 11-year-old participants (n = 499) in the 2012 National Youth Fitness Survey were analyzed. Parents/guardians reported children’s PA levels and recess provision, categorized as no/minimal (9.0%), low (26.1%), medium (46.0%), or high (18.9%). Children wore a wrist-worn accelerometer for 7 days and completed anthropometric measurements. Fitness was assessed using grip strength and treadmill, pull-up, and plank tests. Cross-sectional linear and logistic regression compared outcomes across levels of recess provision adjusting for the survey’s complex sampling design. Results: Children with high provision of recess were 2.31 times more likely to meet PA guidelines according to parent report than those with no/minimal recess. Accelerometer-measured PA followed a more U-shaped pattern, wherein PA was higher in children with high, compared to low, recess provision but comparable to those with no/minimal recess provision. There were no associations with weight status, adiposity, or fitness. Conclusion: Current recess recommendations (20 min·d⁻¹) may be insufficient as 30 minutes per day of recess was associated with a 2-fold greater likelihood of achieving recommended PA levels. Additional research on recess quantity and quality is needed.

目的：确定学校提供的课间休息时间与儿童的身体活动 (PA)、体重状况、肥胖、心肺耐力、肌肉力量和肌肉耐力之间的关联。方法：分析了 2012 年全国青少年健身调查中 6 至 11 岁参与者 (n = 499) 的数据。父母/监护人报告了儿童的 PA 水平和课间休息规定，分为无/最低 (9.0%)、低 (26.1%)、中等 (46.0%) 或高 (18.9%)。儿童佩戴腕戴式加速度计 7 天并完成人体测量。使用握力和跑步机、引体向上和平板支撑测试评估健康状况。横截面线性回归和逻辑回归比较了根据调查的复杂抽样设计调整的休假规定水平的结果。结果：根据家长报告，休息时间较多的儿童达到 PA 指南的可能性是没有/休息时间最少的儿童的 2.31 倍。加速度计测量的 PA 遵循更 U 形的模式，其中与低休会规定相比，具有高休会规定的儿童的 PA 更高，但与没有/最少休会规定的儿童相当。与体重状况、肥胖或健康没有关联。结论：当前的休息建议 (20 min·d ^-1 ) 可能不够，因为每天休息 30 分钟与达到建议的 PA 水平的可能性增加 2 倍相关。需要对凹槽数量和质量进行更多研究。