| Summary: | 碩士 === 國立彰化師範大學 === 運動健康研究所 === 100 === Studies have shown that insufficient physical activity was negatively associated with academic achievement. Following the technology innovation, the screen-based sedentary behaviors, such as TV-watching, computer use, online game, cell phone use, have become more prevalent in teenager. However, the relationship between screen-based sedentary behaviors and academic achievement is still unclear. The purposes of this study were to explore the effect of screen-based sedentary behavior on academic achievement, and to explore the relationship among different academic subjects.
There were 703 grade two students recruited from one senior high school in Changhua country. The dependent variable was the grades General Scholastic Ability Test in 101 academic year. The independent variables were the total time of screen-based sedentary behaviors (less than 2hours, 2-3 hours, 3-4 hours, 4+ hours), TV-watching (less than 1 hours, 1-2 hours, 2+ hours), computer use (less than 1 hours, 1-2 hours, 2+ hours) and cell phone use (less than 0.5 hours, 0.5-1 hours, 1+ hours) with a nine-month follow-up interval. The control variables included grades of senior high school entrance test, body mass index, cardiopulmonary fitness, mother’s and father’s educational levels, family income, family structure, learning time, attending cram school time, sleeping time, amount of mobile and medical-leave. The collect data were analysis by One-way ANOVA and multiple linear regression analyses.
Results: the relationship between total time of screen-based sedentary behaviors and academic achievement was negative. The students who spent 4 or more hours in total time of screen-based sedentary behaviors had poor academic achievement compared with those spent less than 2 hours. The relationship between cell phone use and academic achievement was negative. The students who spent 1 or more hours on mobile use had poor academic achievement compared with those spent less than 0.5 hours. Students spent more time in total screen-based sedentary behaviors had poor performance in several academic subjects, including Chinese, Mathematics, Science, and Social Studies. Students spent more time in cell phone had also lower grades in several academic subjects, comprising Chinese, Mathematics and Science.
Conclusion: Students spent 4 or more hours on screen-based sedentary behavior possessed poor academic achievement, especially for mobile use (1+ hours). Educational authorities should pay attention to reduce screen-based sedentary behaviors in adolescents.
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