

Therefore, the primary aim of the study is to describe the PA levels during school cleaning and recess time. Consequently, interventions and strategies that effectively increase children’s engagement in PA that benefits health outcomes are needed, especially for girls.

According to a report from the Tokyo Metropolitan Board of Education, daily step counts for primary school children in the Tokyo metropolitan area were lower for girls than those of boys in each grade (for the first grade, 1073 steps/day, while for the sixth grade, 912 steps/day for girls and boys, respectively). Other international comparison studies also showed similar results. The data show that boys are more active than girls. described overall PA levels worldwide using questionnaire data for adolescents from 105 countries. Thus, school cleaning time can be an opportunity for levels of PA, there is no evidence concerning PA during the school cleaning time for primary school children. Many cleaning activities in primary school children are applicable to activity as MVPA. developed A Youth Compendium of Physical Activities (Youth Compendium). Thus, Japanese children clean their schools (e.g., classroom, bathroom, hall, stairs, entrance, gym) themselves every school day.

Japanese educational curriculum guidelines for primary schools as established by the Ministry of Education, Culture, Sports, Science and Technology, Ministry of Health, Labour and Welfare require that school curricula include school cleaning time that is intended to increase understanding by primary school children of the significance of shared responsibility in school and work. Thus, previous reviews have focused on PA during school recess time. The school environment plays a crucial role in providing opportunities for children to engage in health-promoting physical activity (PA). According to results of a previous study of Japanese primary school children, time in MVPA during a typical school day was higher and time in sedentary behavior (SB) during a school day was lower than that during summer vacation. Japanese Children spend approximately 200 days/year in primary school. Children and adolescents are recommended to participate in at least 60 min of moderate-to-vigorous physical activity (MVPA) daily to benefit health.
