Intervention effects of bedtime screen use content on nighttime sleep quality among college students with high sedentary behavior
Objective To explore the effects of different screen content on the nighttime sleep quality of college students based on screen time 1 h before bedtime,so as to provide a basis for healthy sleep habits.Methods From March 1 to 15,2024,40 col-lege students were recruited from Capital Institute of Physical Education through student social media groups or recruitment posters,and were randomly assigned to TV/movie streaming group(n=10),video game group(n=10),online surfing/social networking group(n=10),sleep aid video group(n=10)by single-blind randomized experimental design.The International Physical Activity Questionnaire Short Form(IPAQ-SF),Self-rating Depression Scale(SDS)and Self-rating Anxiety Scale(SAS)were used to meas-ure the physical activity and emotional state levels of college students before the experiment.In the 5-day experiment,participants watched different screen content 1 h before sleep,then Pittsburgh Sleep Quality Index(PSQI),sleep duration,sleep latency and wake-up time were collected before and after the intervention.A paired sample t-test was used to compare the differences within groups before and after the intervention,and one-way analysis of variance was used for horizontal comparison between groups.Re-sults In the longitudinal within-group comparisons before and after the intervention,there was an increase in PSQI scores in the TV/movie strearming(5.40±0.70,6.30±0.67)and online surfing/social networking(5.50±0.97,6.20±0.63)groups(t=-3.86,-2.33,P＜0.05)and the sleep aid video group(5.80±0.92,4.90±0.74)with a decrease in PSQI scores(t=3.25,P＜0.05),and the difference in PSQI scores in the video game group(5.60±0.84,5.80±0.79)was not statistically significant(t=-0.69,P＞0.05).In the post-intervention cross-sectional comparison between groups,the sleep aid video group had better PSQI scores(4.90±0.74;6.30±0.67,5.80±0.79,6.20±0.63),sleep latency(0:25±0.24 h,1:31±0.36h,00:56±0.56 h,01:22±0.54h)and sleep efficiency[(81.83±5.40)％;(72.60±5.00)％,(75.50±4.43)％,(74.80±5.20)％]than the other 3 groups(F=8.00,6.61,19.00)and better sleep duration than the TV/movie strearming group and the online surfing/social networking group[(7.30±0.68)(6.20±0.26)(6.36±0.64)h](F=6.61)(P＜0.01).Conclusions Bedtime screen use with different screen contents affects sleep quality differently.The screen content of TV/movie streaming and online surfing/socialising reduced sleep quality,whereas watc-hing sleep aiding videos may improve sleep quality,while playing video games shows no effects on sleep quality.
万方数据
维普
