Bai Yang, Saint-Maurice Pedro F, Welk Gregory J, Allums-Featherston Kelly, Candelaria Norma
Department of Rehabilitation and Movement Science, University of Vermont, 305 Rowell Building, Burlington, VT 05405.
Department of Kinesiology, Iowa State University, 283 Forker Building, Ames, IA 50010.
J Sch Health. 2016 Nov;86(11):787-793. doi: 10.1111/josh.12434.
To advance research on youth fitness promotion it is important to understand factors that may explain the disparities in fitness.
We evaluated data from the FitnessGram NFL PLAY60 Partnership Project to examine school factors influencing aerobic capacity (AC) and body mass index (BMI) in schoolchildren. Individual observations for AC (157,971 students from 675 schools) and BMI (178,274 students from 630 schools) were aggregated to compute the percentage of students achieving the Healthy Fitness Zone (HFZ). We examined achievements using adjusted linear regression models with socioeconomic status (SES), minority status, region, enrollment, and grade as factors.
The mean HFZ for AC and BMI were 51.6% and 56.9%, respectively. SES, minority status, and enrollment were all significantly associated with AC HFZ among boys, and SES and enrollment were significant predictors of AC HFZ in girls. SES and location were significantly related to BMI HFZ among boys but only SES significantly predicted BMI HFZ in girls. Schools with higher SES had higher AC and BMI HFZ achievements.
SES was consistently associated with health-related fitness, independent of sex, but not minority status.
为推动青少年健身促进研究，了解可能解释健身差异的因素很重要。
我们评估了“健身gram NFL PLAY60合作项目”的数据，以研究影响学童有氧能力（AC）和体重指数（BMI）的学校因素。对AC（来自675所学校的157,971名学生）和BMI（来自630所学校的178,274名学生）的个体观察数据进行汇总，以计算达到健康健身区（HFZ）的学生百分比。我们使用以社会经济地位（SES）、少数族裔身份、地区、入学人数和年级为因素的调整线性回归模型来检验成绩。
AC和BMI的平均HFZ分别为51.6%和56.9%。SES、少数族裔身份和入学人数在男孩中均与AC HFZ显著相关，而SES和入学人数是女孩中AC HFZ的显著预测因素。SES和地理位置在男孩中与BMI HFZ显著相关，但在女孩中只有SES显著预测BMI HFZ。SES较高的学校有更高的AC和BMI HFZ成绩。
SES始终与健康相关的体能相关，与性别无关，但与少数族裔身份无关。
