Effect of short video addiction on the sleep quality of college students: chain intermediary effects of physical activity and procrastination behavior

Abstract

IntroductionThe purpose of this study was to examine the impact of short video addiction on college students' sleep quality and to elucidate the mechanism underlying this relationship. Thus, we examined the correlation between short video addiction and sleep quality and analyzed the roles of physical activity and procrastination.MethodsThe Short Video Addiction Scale, Pittsburgh Sleep Quality Index, Aitken Procrastination Inventory, and Physical Activity Rating Scale were administered to 337 college students. Data were analyzed using SPSS 27.0. Pearson's correlation analysis and mediation analysis using the bootstrapping test were performed for the standard method bias test.Results(1) Overall, 25.2% of college students had problems with sleep quality (indicated by a PSQI score ≥ 8). (2) Short video addiction score is positively correlated with college students' sleep quality score; procrastination score was positively associated with both short video addiction score and sleep quality score, and physical activity score was negatively associated with them. (3) Short video addiction significantly positive predicted sleep quality (β = 0.458, P < 0.001), a significant negative predictive effect on physical exercise (β = −0.183, P < 0.001), and a significant positive effect on procrastination behavior (β = 0.246, P < 0.001). After physical exercise and procrastination behavior were entered into the regression equation, short video addiction and procrastination were significantly positive predictors of sleep quality, and physical activity was significantly negative predictor of sleep quality. (4) After accounting for the variables of age, gender, and grade, physical activity and procrastination behaviors independently mediated the association between short-video addiction and sleep quality. Physical activity and procrastination behavior acted as chain mediators in the association between short video addiction and sleep quality, with a chain mediation effect percentage of 1.04%. Short video addiction directly affects college students' sleep quality, indirectly through physical activity and procrastination behavior.

An investigative study of anxiety, depression and sleep quality in college students after the COVID-19 pandemic - the moderating effect of physical activity

“…The Physical Activity Rating Scale (PARS-3) (Zhao & Kou, 2024) compiled by Liang Deqing was used, combined with the purpose of the study, the amount of physical activity was used as an indicator to reflect the situation of physical activity level of college students, which consisted of three rating indicators, namely, weekly frequency of physical activity, time of each physical activity and intensity of physical activity, and the indicators of exercise intensity and exercise time were divided into five grades, with grades 1-5 corresponding to scores of 1-5, respectively. Exercise frequency is divided into four grades, with 1~4 grades corresponding to 1~4 points, and the results are calculated according to the formula "Physical Activity = Exercise Time × Exercise Intensity × Exercise Frequency" as a measure of the amount of physical activity of college students.…”