(1.School of Physical Education and Health Sciences，Zhejiang Normal University，Jinhua 321004，China；2.School of Physical Education and Sport Training，Shanghai University of Sport，Shanghai 200438，China)
Abstract: This study aims to explore the difference of teacher-related factors on students’ physical activity (PA) level between elementary and middle school physical education. Students’ PA levels and their teachers from 284 elementary and middle school PE classes were investigate. The students’ PA level, teachers’ teaching behavior, and the relationship between students’ PA in physical education at different stages and teacher-related factors (such as teacher gender, teaching experience, and teacher behavior) was studied by means of the methods of measurement, observation and investigation. The results showed that students’ MVPA% during PE classes both in elementary and middle schools failed to meet the 50% engagement time recommendation, and there was no significant difference between them. Teacher behavior of instructing teaching and managing class were the highest in both elementary and middle school PE classes, and PE teachers in elementary schools spent more time in behavior of managing class and demonstrating actions than teachers in middle schools, while teachers in middle schools allocate more time in behavior of instructing teaching and observing than elementary PE teachers. Both elementary and middle school students spent significantly more MVPA time in male-led than female-led PE classes, and teaching experience only negatively correlated with elementary school students’ MVPA%. Teacher behavior of promoting health was positively associated with students’MVPA% in elementary and middle school PE classes, and teacher behavior of observing only had a positive effect on middle school students’ MVPA%. The study holds that there were significant difference of the influence of teacher-related factors on students’ MVPA% in elementary and middle school PE classes, and the specific intervention measures should be operated on students at different stages afterwards.
Key words: school physical education；teacher characteristics；teaching behavior；physical activity level；physical education class