心率作为评价生理负荷强度的一种指标,被国内外学者和体育教育工作者广泛应用。为了更好地剖析此次观摩展示课中的引领价值,推进常规体育课的有效实施,本文以参加第六届全国中小学优秀体育教学观摩展示活动高中学段的12节展示课为研究对象,根据观摩展示活动组委会要求,每一节体育课随机抽取2名学生为受测者,对2名学生的心率及生理负担量进行了 Heart rate as an indicator of physiological load intensity, widely used by domestic and foreign scholars and physical education workers. In order to better analyze the leading value in this demonstration class and promote the effective implementation of regular physical education class, this dissertation takes 12 demonstration classes in the 6th National High School Physical Education Teaching Observation Activity High School as the research object, According to the requirements of the Organizing Committee for Observing and Showing Activities, two students were randomly selected from each physical education class as subjects and the heart rate and physical burden of two students