Physical activity contributes to a variety of health benefits. Therefore, preventing sedentary behavior is critical for the promotion of physical activity in people of all ages. This study was to clarify the relationship between sedentary behavior and the living environment. This study surveyed residents living in houses with adequate insulation performance. In the cross-sectional survey, we examined the relationship between living environment and sedentary behavior at the daily and individual

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... evels, using multilevel analysis. In the intervention survey, we examined the relationship between changes in the indoor thermal environment and sedentary behavior by requesting the active use of heating.