Flipped learning is a pedagogical approach that directs instruction from a group to an individual learning space. This approach can stimulate students’ motivation, promote adequate physical activity levels, and reduce sedentary (SED) behaviour. Addressing the literature gap regarding the correlations among these factors in school physical education (PE), this study aimed to examine the association of students’ motivation, physical activity levels, and SED behaviour with flipped learning in a four-lesson learning unit. Framed by self-determination theory, a quasi-experimental design was adopted to measure and compare the moderate-to-vigorous physical activity (MVPA), SED, and motivation levels of 111 primary school students aged between 10 and 11 years (mean = 10.07, standard deviation =.26) in Hong Kong. Fifty-two of the participants were female, and 59 were male. They were randomly assigned to experimental (n = 57) and control (n = 54) groups, in which a flipped learning approach was adopted in the experimental group for two weeks. A questionnaire survey and accelerometers were used to measure participants’ motivation (autonomous motivation, controlled motivation, and amotivation) and their physical activity levels. The findings revealed significantly higher MVPA levels and lower SED levels in the experimental group. Autonomous motivation was found to have a positive correlation with MVPA levels and a negative correlation with SED levels, indicating a positive predictor of the two. The findings of this study reveal the potential of flipped learning to enhance students’ MVPA and reduce their SED behaviour during primary school PE lessons. Copyright © 2023 The Author(s).

Background: In Hong Kong, the time limitation set for physical education (PE) lessons at schools is one of the obstacles in promoting adequate physical activity (PA) levels for students. Flipped learning is a pedagogical approach that advocate more interaction between teachers and learners, in return promoting more PA participation. The present study utilised the self-determination theory (SDT) as the theoretical framework for designing flipped learning content to be applied during PE lessons, targeting the improvement of students’ PA levels. The purpose of this study was to examine the effectiveness of the flipped learning unit on the PA levels and motivation of students during PE lesson.Method: For this study, 111 Grade 5 students at a Hong Kong primary school participated in the study. They were grouped into a flipped learning group (PE lesson with flipped learning; n=57) or a traditional learning group (PE lesson with regular teaching; n=54). Participants were randomly assigned to groups followed the class they were in. The flipped learning design included an online self-learning session and an in-school learning session with more practice and discussion time allowed during the course of a four-lesson PE learning unit. The lessons for both groups were conducted in twice weekly sessions that lasted for 25 minutes each. An accelerometer (GT3X) was used to measure the PA levels of students during the four experimental PE lessons; and questionnaires were used to assess their motivation before each PE class.Results: Using ANOVA, a significant difference in PA level was found between the traditional learning group and flipped learning group (F, [1,21] = 21.76, p < .05). Moderate to vigorous physical activity (MVPA) duration of the flipped lessons was higher and duration of sedentary (SED) was lower than that of the traditional lessons. At the same time, autonomous motivation was a positive predictor of MVPA (β = 1.603, p < 0.05) in practice-oriented lessons. In addition