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1 "Gyeongmin Kim"
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Associations between digital media use and lack of physical exercise among middle-school adolescents in Korea
Gyeongmin Kim, Hyunsuk Jeong, Hyeon Woo Yim
Epidemiol Health. 2023;45:e2023012.   Published online January 10, 2023
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AbstractAbstract AbstractSummary PDFSupplementary Material
The reported effects of digital media overuse on physical activity among adolescents are inconsistent. This study examined the association between hours of digital media use and lack of moderate-intensity physical exercise (mPE) according to the type of digital media.
This study included 1,837 middle school students from the iCURE (Internet user Cohort for Unbiased Recognition of gaming disorder in Early Adolescence) study conducted in Korea. Hours spent using digital media were measured by self-reported daily usage time for Internet games, messengers, social media, and watching game streaming on weekdays. Lack of mPE was defined as performing a minimum of 30 minutes at a time less than twice weekly. Multivariable logistic regression analysis stratified by sex was performed.
Among male students, the group with the highest hours of using either Internet games or watching game streaming was more likely to lack mPE than each non-user group. In contrast, among male students, the group using either messengers or social media had a higher rate of mPE compared to each non-user group. Female students showed no association between hours spent using Internet games, messengers, social media, or watching game streaming and a lack of mPE.
Among male middle school students in Korea, the excessive use of Internet games or watching game streaming was associated with a lack of mPE. Thus, guidelines should be established regarding adolescent use of internet games and watching game streaming.
Korean summary
한국에서 남, 여 중학생을 대상으로 4개 인터넷 매체(인터넷 게임, 메신저, 소셜미디어, 게임 스트리밍 시청) 과다사용과 신체 운동 부재와의 연관성을 알아보기 위한 단면조사 연구를 시행하였다. 남자 중학생에서 인터넷 게임 사용 또는 게임 스트리밍 시청 시간이 가장 높은 사분위 그룹은 비이용 그룹보다 중간 강도의 신체운동 부재율이 유의하게 높았다.
Key Message
A cross-sectional study was conducted to find out the relationship between excessive use of four Internet media (internet games, messengers, social media, and game streaming) and lack of physical exercise targeting male and female middle school students in Korea. Among male middle school students, the upper quartile group with the highest Internet game use or game streaming viewing time had a significantly higher moderate-intensity physical exercise absence rate than the non-use group.


Citations to this article as recorded by  
  • ‘We wanted to spend more time with each other than with our phones’. Relationship between digital disconnection and physical activity of family members
    Katarzyna Kopecka-Piech
    Cogent Arts & Humanities.2024;[Epub]     CrossRef
  • Trends in the effects of socioeconomic position on physical activity levels and sedentary behavior among Korean adolescents
    Hunju Lee, Hyowon Choi, Sangbaek Koh, Hyeon Chang Kim
    Epidemiology and Health.2023; : e2023085.     CrossRef

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