Children's Hospital of Philadelphia, 3535 Market Street, Room 1584, Philadelphia, PA 19104-4399, USA.
J Sch Health. 2010 Dec;80(12):573-80. doi: 10.1111/j.1746-1561.2010.00544.x.
This study was conducted to empirically evaluate specific human, curricular, and material resources that maximize student opportunities for physical activity during physical education (PE) class time. A structure-process-outcome model was proposed to identify the resources that influence the frequency of PE and intensity of physical activity during PE. The proportion of class time devoted to management was evaluated as a potential mediator of the relations between resource availability and student activity levels.
Data for this cross-sectional study were collected from interviews conducted with 46 physical educators and the systematic observation of 184 PE sessions in 34 schools. Regression analyses were conducted to test for the main effects of resource availability and the mediating role of class management.
Students who attended schools with a low student-to-physical educator ratio had more PE time and engaged in higher levels of physical activity during class time. Access to adequate PE equipment and facilities was positively associated with student activity levels. The availability of a greater number of physical educators per student was found to impact student activity levels by reducing the amount of session time devoted to class management.
The identification of structure and process predictors of student activity levels in PE will support the allocation of resources and encourage instructional practices that best support increased student activity levels in the most cost-effective way possible. Implications for PE policies and programs are discussed.
本研究旨在通过实证评估特定的人力、课程和物质资源,最大限度地增加学生在体育课(PE)时间内进行身体活动的机会。提出了一个结构-过程-结果模型,以确定影响体育课频率和体育活动强度的资源。将用于管理的课时比例评估为资源可用性与学生活动水平之间关系的潜在中介。
这项横断面研究的数据来自对 46 名体育教师的访谈以及对 34 所学校的 184 节体育课的系统观察。进行回归分析以检验资源可用性的主要影响以及课堂管理的中介作用。
在学生与体育教师比例较低的学校就读的学生,他们的体育课时间更长,在课堂时间内的身体活动水平更高。获得足够的体育课设备和设施与学生的活动水平呈正相关。每增加一名学生配备的体育教师人数,通过减少用于课堂管理的课时比例,对学生的活动水平产生影响。
确定体育课中学生活动水平的结构和过程预测因素将支持资源的分配,并鼓励以最具成本效益的方式实施最佳的教学实践,以提高学生的活动水平。讨论了对体育课政策和计划的影响。