Objectives The purposes of this study were to analyze the research trends related to morning physical activities within schools and to explore the challenges for future research directions.
 Methods 68 studies were selected as the final research targets by searching the domestic academic database ‘RISS’ from 2010 to 2021, under the theme of “Morning Sports Activities, 0 Period Physical Education, and Morning Exercise.” These include 26 domestic academic papers and 42 dissertations. The final selected documents were analyzed by dividing the research status of morning sports activities (publishment year, research subject, research method), morning sports activity program (operational event, period, number of operations, operating time), and morning sports activity effect (cognitive effect, affective effect, psychodynamic effect).
 Results In the research status of morning physical activities, the publication years with the highest research activity were 2013 (11 studies) and 2015 (11 studies). The study subjects were primarily elementary students (33 studies), followed by high school students (15 studies), middle school students (12 studies), and teachers (4 studies). In terms of research methods, quantitative research (52 studies) was the most common, followed by qualitative research (12 studies) and mixed-methods research (4 studies). Regarding morning physical activity programs, many programs incorporated a mix of activities rather than single activities, with a duration of 12 weeks being the most common (10 studies). The frequency of activity sessions per week included 5 sessions (12 studies), 3 sessions (9 studies), 2 sessions (8 studies), and some cases of voluntary participation. The duration of each activity session was often 40 minutes (18 studies), followed by 30 minutes (11 studies), 50 minutes (5 studies), and 60 minutes (5 studies). In terms of the effects of morning physical activities, they were categorized into cognitive effects related to academic achievement and concentration (21 studies), affective and attitude-related effects, as well as interpersonal relationship-related effects (42 studies), and physical health and fitness-related effects (20 studies).
 Conclusions Future research challenges were proposed, including diversifying the research subjects, overcoming research biases, and enhancing the expertise and systematic nature of research.
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