Background:Physical activity,sleep,and sedentary behaviors compose 24-h movement behaviors and have been independently associated with depressive symptoms.However,it is not clear whether it is the movement behavior itself or other contextual factors that are related to depressive symptoms.The objective of the present study was to examine the associations between self-reported and accelerometer-measured movement behaviors and depressive symptoms in adolescents.Methods:Cross-sectional data from 610 adolescents(14-18 years old)were used.Adolescents answered questions from the Center for Epidemi-ological Studies Depression scale and reported time spent watching videos,playing videogames,using social media,time spent in various physi-cal activities,and daytime sleepiness.Wrist-worn accelerometers were used to measure sleep duration,sleep efficiency,sedentary time,and physical activity.Mixed-effects logistic regressions were used.Results:Almost half of the adolescents(48％)were classified as being at high risk for depression(score≥20).No significant associations were found between depressive symptoms and accelerometer-measured movement behaviors,self-reported non-sport physical activity,watching vid-eos,and playing videogames.However,higher levels of self-reported total physical activity(odd ratio(OR)=0.92,95％confidence interval(95％CI):0.86-0.98)and volume of sports(OR=0.88,95％CI:0.79-0.97),in minutes,were associated with a lower risk of depression,while using social media for either 2.0-3.9 h/day(OR=1.77,95％CI:1.58-2.70)or＞3.9 h/day(OR=1.67,95％CI:1.10-2.54),as well as higher levels of daytime sleepiness(OR=1.17,95％CI:1.12-1.22),were associated with a higher risk of depression.Conclusion:What adolescents do when they are active or sedentary may be more important than the time spent in the movement behaviors because it relates to depressive symptoms.Targeting daytime sleepiness,promoting sports,and limiting social media use may benefit adolescents.

Bruno Gon?alves Galdino da Costa;Jean-Philippe Chaput;Marcus Vinicius Veber Lopes;Luis Eduardo Argenta Malheiros;Kelly Samara Silva

Research Centre in Physical Activity and Health,Federal University of Santa Catarina,Florianópolis,88040-900,Brazil;Healthy Active Living and Obesity Research Group,Children's Hospital of Eastern Ontario Research Institute,Ottawa,ON K1H 8L1,Canada

运动与健康科学（英文）

[1]Bruno Gon?alves Galdino da Costa;Jean-Philippe Chaput;Marcus Vinicius Veber Lopes;Luis Eduardo Argenta Malheiros;Kelly Samara Silva-.Movement behaviors and their association with depressive symptoms in Brazilian adolescents:A cross-sectional study)[J].运动与健康科学（英文）,2022(02):252-259

Epidemi,videogames,eos

Movement,behaviors,their,depressive,symptoms,Brazilian,adolescents,cross,sectional,study,Background,Physical,activity,sedentary,compose,movement,have,been,independently,associated,However,not,clear,whether,itself,other,contextual,factors,that,are,related,objective,present,was,examine,associations,between,reported,measured,Methods,Cross,data,from,years,old,used,Adolescents,answered,questions,Center,ological,Studies,Depression,scale,spent,watching,videos,playing,using,social,media,various,activities,daytime,sleepiness,Wrist,worn,accelerometers,duration,efficiency,physical,Mixed,effects,logistic,regressions,Results,Almost,half,classified,being,risk,depression,score,No,significant,found,higher,levels,total,odd,confidence,interval,volume,sports,minutes,lower,while,either,well,Conclusion,What,when,they,active,may,more,important,than,because,relates,Targeting,promoting,limiting,benefit

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