Fu You, Brusseau Timothy A, Hannon James C, Burns Ryan D
University of Nevada, 1664 North Virginia Street, Reno, NV 89557, USA.
University of Utah, 250 S. 1850 E., Salt Lake City, UT 84112, USA.
J Environ Public Health. 2017;2017:9760817. doi: 10.1155/2017/9760817. Epub 2017 Mar 9.
. The purpose of this study was to examine the effect of a 12-week summer break on school day physical activity and health-related fitness (HRF) in children from schools receiving a Comprehensive School Physical Activity Program (CSPAP). . Participants were school-aged children ( = 1,232; 624 girls and 608 boys; mean age = 9.5 ± 1.8 years) recruited from three low-income schools receiving a CSPAP. Physical activity and HRF levels were collected during the end of spring semester 2015 and again during the beginning of fall semester 2015. Physical activity was assessed using the Yamax DigiWalker CW600 pedometer. HRF measures consisted of body mass index (BMI) and the Progressive Aerobic Cardiovascular Endurance Run (PACER). . Results from a doubly MANCOVA analysis indicated that pedometer step counts decreased from 4,929 steps in the spring to 4,445 steps in the fall (mean difference = 484 steps; < 0.001; Cohen's = 0.30) and PACER laps decreased from 31.2 laps in the spring to 25.8 laps in the fall (mean difference = 5.4 laps; < 0.001; Cohen's = 0.33). . Children from schools receiving a CSPAP intervention had lower levels of school day physical activity and cardiorespiratory endurance following a 12-week summer break.
本研究的目的是检验为期12周的暑假对接受综合学校体育活动计划（CSPAP）的学校中儿童在校日身体活动及健康相关体能（HRF）的影响。研究参与者为从三所接受CSPAP的低收入学校招募的学龄儿童（n = 1232；624名女孩和608名男孩；平均年龄 = 9.5 ± 1.8岁）。在2015年春季学期末和2015年秋季学期初分别收集身体活动和HRF水平数据。使用Yamax DigiWalker CW600计步器评估身体活动情况。HRF测量指标包括体重指数（BMI）和渐进性有氧心血管耐力跑（PACER）。双因素协方差分析结果表明，计步器步数从春季的4929步降至秋季的4445步（平均差值 = 484步；p < 0.001；科恩d值 = 0.30），PACER圈数从春季的31.2圈降至秋季的25.8圈（平均差值 = 5.4圈；p < 0.001；科恩d值 = 0.33）。接受CSPAP干预的学校的儿童在为期12周的暑假后在校日身体活动水平和心肺耐力较低。
