Hui DS, Azhar EI, Madani TA, Ntoumi F, Kock R, Dar O, et al. The continuing 2019-nCoV epidemic threat of novel coronaviruses to global health-The latest 2019 novel coronavirus outbreak in Wuhan, China. Int J Infect Dis. 2020;93(91):264–6. https://doi.org/10.1016/j.ijid.2020.01.009.
Article
CAS
Google Scholar
World Health Organization. Novel coronavirus (2019-nCoV) situation report-17[EB/ OL] [2020.2.6]. 2020. https://www.who.int/docs/defaultsource/coronaviruse/situation-reports/20200206-sitrep-17-ncov.pdf?sfvrsn=17f0dca_4.
Google Scholar
Wilder-Smith A, Freedman DO. Isolation, quarantine, social distancing and community containment: pivotal role for old-style public health measures in the novel coronavirus (2019-nCoV) outbreak. J Travel Med. 2020;27(2):taaa020. https://doi.org/10.1093/jtm/taaa020.
Article
PubMed
Google Scholar
Brooks SK, Webster RK, Smith LE, Woodland L, Wessely S, Greenberg N, et al. The psychological impact of quarantine and how to reduce it: rapid review of the evidence. Lancet. 2020;395(10227):912–20. https://doi.org/10.1016/S0140-6736(20)30460-8.
Article
CAS
PubMed
PubMed Central
Google Scholar
Qin F, Song YQ, Nassis GP, Zhao LN, Cui SQ, Lai LL, Wu ZZ, Xu MX, Qu CY, Dong YN, Wang ZW, Geng X, Zhao CC, Feng YW, Han ZN, Fan ZZ, Zhao JX. Prevalence of Insufficient physical activity, sedentary screen time and emotional well-Being during the early days of the 2019 Novel Coronavirus (COVID-19) outbreak in China: A national cross-sectional study (3/31/2020). Available at SSRN: https://ssrn.com/abstract=3566176 or doi:https://doi.org/10.2139/ssrn.3566176
Xiang M, Zhang Z, Kuwahara K. Impact of COVID-19 pandemic on children and adolescents' lifestyle behavior larger than expected. Prog Cardiovasc Dis. 2020a;63(4):531–2. https://doi.org/10.1016/j.pcad.2020.04.013.
Article
PubMed
PubMed Central
Google Scholar
Pietrobelli A, Pecoraro L, Ferruzzi A, Heo M, Faith M, Zoller T, et al. Effects of COVID-19 lockdown on lifestyle behaviors in children with obesity living in Verona, Italy: a longitudinal study. Obesity. 2020;30. https://doi.org/10.1002/oby.22861.
Peluso MA, Guerra de Andrade LH. Physical activity and mental health: the association between exercise and mood. Clinics. 2005a;60(1):61–70. https://doi.org/10.1590/s1807-59322005000100012.
Article
PubMed
Google Scholar
Nagata JM, Abdel Magid HS, Pettee Gabriel K. Screen time for children and adolescents during the coronavirus disease 2019 pandemic. Obesity. 2020;28(9):1582–3. https://doi.org/10.1002/oby.22917.
Article
CAS
PubMed
Google Scholar
LeBourgeois MK, Hale L, Chang AM, Akacem LD, Montgomery-Downs HE, Buxton OM. Digital media and sleep in childhood and adolescence. Pediatrics. 2017;140(Suppl 2):S92–6.
Article
PubMed
Google Scholar
Twenge JM, Martin GN, Campbell WK. Decreases in psychological well-being among American adolescents after 2012 and links to screen time during the rise of smartphone technology. Emotion. 2018;18(6):765–80.
Article
PubMed
Google Scholar
Wang CY, Pan RY, Wan XY, Tan YL, Xu LK, Ho CS, et al. Immediate psychological responses and associated factors during the initial stage of the 2019 coronavirus disease (COVID-19) epidemic among the general population in China. Int J Environ Res Public Health. 2020;17:1729. https://doi.org/10.3390/ijerph17051729.
Article
CAS
PubMed Central
Google Scholar
Zandifar A, Badrfam R. Iranian mental health during the COVID-19 epidemic. Asian J Psychiatr. 2020;51:101990. https://doi.org/10.1016/j.ajp.2020.101990.
Article
PubMed
PubMed Central
Google Scholar
Xiao C. A novel approach of consultation on 2019 novel coronavirus (COVID-19)-related psychological and mental problems: structured letter therapy. Psychiatry Investig. 2020;17(2):175–6. https://doi.org/10.30773/pi.2020.0047.
Article
CAS
PubMed
PubMed Central
Google Scholar
Xiang Y-T, Yang Y, Li W, Zhang L, Zhang Q, Cheung T, et al. Timely mental health care for the 2019 novel coronavirus outbreak is urgently needed. Lancet Psychiatry. 2020b;7(3):228–9. https://doi.org/10.1016/S2215-0366(20)30046-8.
Article
PubMed
PubMed Central
Google Scholar
Sund AM, Larsson B, Wichstrøm L. Role of physical and sedentary activities in the development of depressive symptoms in early adolescence. Soc Psychiatry Psychiatr Epidemiol. 2011;46(5):431–41. https://doi.org/10.1007/s00127-010-0208-0.
Article
PubMed
Google Scholar
White K, Kendrick T, Yardley L. Change in self-esteem, self-efficacy and the mood dimensions of depression as potential mediators of the physical activity and depression relationship: exploring the temporal relation of change. Ment Health Phys Act. 2009;2:44–52. https://doi.org/10.1016/j.mhpa.2009.03.001.
Article
Google Scholar
Janssen I, Leblanc AG. Systematic review of the health benefits of physical activity and fitness in school-aged children and youth. Int J Behav Nutr Phys Act. 2010;7:40. https://doi.org/10.1186/1479-5868-7-40.
Article
PubMed
PubMed Central
Google Scholar
Tremblay MS, LeBlanc AG, Kho ME, Saunders TJ, Larouche R, Colley RC, et al. Systematic review of sedentary behaviour and health indicators in school-aged children and youth. Int J Behav Nutr Phys Act. 2011a;8:98. https://doi.org/10.1186/1479-5868-8-98.
Article
PubMed
PubMed Central
Google Scholar
Tremblay MS, LeBlanc AG, Kho ME, Saunders TJ, Larouche R, Colley RC, et al. Systematic review of sedentary behaviour and health indicators in school-aged children and youth. Int J Behav Nutr Phys Act. 2011b;8:98. https://doi.org/10.1186/1479-5868-8-98.
Article
PubMed
PubMed Central
Google Scholar
Capodaglio EM. Attività fisica, strumento di prevenzione e gestione delle malattie croniche [Physical activity, tool for the prevention and management of chronic diseases]. G Ital Med Lav Ergon. 2018;40(2):106–19.
PubMed
Google Scholar
Cunningham C, O’Sullivan R, Caserotti P, Tully MA. Consequences of physical inactivity in older adults: A systematic review of reviews and meta-analyses. Scand J Med Sci Sports. 2020;30(5):816–27. https://doi.org/10.1111/sms.13616.
Article
PubMed
Google Scholar
Sisson SB, Camhi SM, Church TS, Martin CK, Tudor-Locke C, Bouchard C, et al. Leisure time sedentary behavior, occupational/domestic physical activity, and metabolic syndrome in U.S. men and women. Metab Syndr Relat Disord. 2009;7(6):529–36. https://doi.org/10.1089/met.2009.0023.
Article
PubMed
Google Scholar
Sloan RA, Sawada SS, Girdano D, Liu YT, Biddle SJ, Blair SN. Associations of sedentary behavior and physical activity with psychological distress: a cross-sectional study from Singapore. BMC Public Health. 2013;13:885. https://doi.org/10.1186/1471-2458-13-885.
Article
PubMed
PubMed Central
Google Scholar
Hamer M, Stamatakis E, Mishra GD. Television- and screen-based activity and mental well-being in adults. Am J Prev Med. 2010;38(4):375–80. https://doi.org/10.1016/j.amepre.2009.12.030.
Article
PubMed
Google Scholar
Tremblay MS, Warburton DE, Janssen I, Paterson DH, Latimer AE, Rhodes RE, et al. New Canadian physical activity guidelines. Appl Physiol Nutr Metab. 2011c;36(1):36–46; 47-58. https://doi.org/10.1139/H11-009.
Article
PubMed
Google Scholar
Wu XY, Tao SM, Zhang YK, Zhang SC, Tao FB. Low physical activity and high screen time can increase the risks of mental health problems and poor sleep quality among Chinese college students. PLoS One. 2015;10(3):e0119607. https://doi.org/10.1371/journal.pone.0119607.
Article
CAS
PubMed
PubMed Central
Google Scholar
Janssen I, Katzmarzyk PT, Boyce WF, Vereecken C, Mulvihill C, Roberts C, et al. Health behaviour in school-aged children obesity working group. Comparison of overweight and obesity prevalence in school-aged youth from 34 countries and their relationships with physical activity and dietary patterns. Obes Rev. 2005;6(2):123–32. https://doi.org/10.1111/j.1467-789X.2005.00176.x.
Article
CAS
PubMed
Google Scholar
Martin A, Rief W, Klaiberg A, Braehler E. Validity of the brief patient health questionnaire mood scale (PHQ-9) in the general population. Gen Hosp Psychiatry. 2006;28(1):71–7. https://doi.org/10.1016/j.genhosppsych.2005.07.003.
Article
PubMed
Google Scholar
Beard C, Hsu KJ, Rifkin LS, Busch AB, Björgvinsson T. Validation of the PHQ-9 in a psychiatric sample. J Affect Disord. 2016;193:267–73. https://doi.org/10.1016/j.jad.2015.12.075.
Article
CAS
PubMed
Google Scholar
Kroenke K, Spitzer RL, Williams JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med. 2001;16(9):606–13. https://doi.org/10.1046/j.1525-1497.2001.016009606.x.
Article
CAS
PubMed
PubMed Central
Google Scholar
Wu X, Tao S, Zhang Y, et al. Geographic distribution of mental health problems among chinese college students during COVID-19 pandemic: cross-sectional, Online Survey Study [published online ahead of print, 2021 J Med Internet Res 2021;https://doi.org/10.2196/23126.
Ni MY, Yang L, Leung C, Li N, Yao XI, Wang Y, et al. Mental health, risk factors, and social media use during the COVID-19 epidemic and cordon sanitaire among the community and health professionals in Wuhan, China: cross-sectional survey. JMIR Mental Health. 2020;7(5):e19009. https://doi.org/10.2196/19009.
Article
PubMed
PubMed Central
Google Scholar
Main A, Zhou Q, Ma Y, Luecken LJ, Liu X. Relations of SARS-related stressors and coping to Chinese college students' psychological adjustment during the 2003 Beijing SARS epidemic. J Couns Psychol. 2011;58(3):410–23. https://doi.org/10.1037/a0023632.
Article
PubMed
Google Scholar
Ghrouz AK.; Noohu MM.’ Dilshad MM.; Warren SD.; Ba Hammam AS.; Pandi-Perumal SR. Physical activity and sleep quality in relation to mental health among college students. Sleep Breath, 2019. 23(2), 627-634. doi: https://doi.org/10.1007/s11325-019-01780-z
Article
PubMed
Google Scholar
Talevi D, Socci V, Carai M, Carnaghi G, Faleri S, Trebbi E, et al. Mental health outcomes of the CoViD-19 pandemic. Riv Psichiatr. 2020;55(3):137–44. https://doi.org/10.1708/3382.33569.
Article
PubMed
Google Scholar
Feng Q, Zhang QL, Du Y, Ye YL, He QQ. Associations of physical activity, screen time with depression, anxiety and sleep quality among Chinese college freshmen. PLoS One. 2014;9(6):e100914. Published 2014 Jun 25. https://doi.org/10.1371/journal.pone.0100914.
Article
CAS
PubMed
PubMed Central
Google Scholar
Hrafnkelsdottir SM, Brychta RJ, Rognvaldsdottir V, Gestsdottir S, Chen KY, Johannsson E, et al. Less screen time and more frequent vigorous physical activity is associated with lower risk of reporting negative mental health symptoms among Icelandic adolescents. PLoS One. 2018;13(4):e0196286. https://doi.org/10.1371/journal.pone.0196286.
Article
CAS
PubMed
PubMed Central
Google Scholar
Huang Y, Wang Y, Wang H, Liu Z, Yu X, Yan J, et al. Prevalence of mental disorders in China: a cross-sectional epidemiological study. Lancet Psychiatry. 2019;6(3):211–24. https://doi.org/10.1016/S2215-0366(18)30511-X Erratum in: Lancet Psychiatry. 2019; 6(4):e11. PMID: 30792114.
Article
PubMed
Google Scholar
Hawryluck L, Gold WL, Robinson S, Pogorski S, Galea S, Styra R. SARS control and psychological effects of quarantine, Toronto, Canada. Emerg Infect Dis. 2004;10(7):1206–12. https://doi.org/10.3201/eid1007.030703.
Article
PubMed
PubMed Central
Google Scholar
Sprang G, Silman M. Posttraumatic stress disorder in parents and youth after health-related disasters. Disaster Med Public Health Prep. 2013;7(1):105–10. https://doi.org/10.1017/dmp.2013.22.
Article
PubMed
Google Scholar
Maisonnette S, Morato S, Brandão ML. Role of resocialization and of 5-HT1A receptor activation on the anxiogenic effects induced by isolation in the elevated plus-maze test. Physiol Behav. 1993 Oct;54(4):753–8. https://doi.org/10.1016/0031-9384(93)90087-v.
Article
CAS
PubMed
Google Scholar
Morley BJ, Worsham E. The effects of prolonged handling, scopolamine, and physostigmine on the activity of isolated and socially reared rats. Physiol Psychol. 1978;6:83–8.
Article
CAS
Google Scholar
Ikemoto S, Panksepp J. The effects of early social isolation on the motivation for social play in juvenile rats. Dev Psychobiol. 1992;25:261–74. https://doi.org/10.1002/dev.420250404.
Article
CAS
PubMed
Google Scholar
McCool BA, Chappell AM. Early social isolation in male Long-Evans rats alters both appetitive and consummatory behaviors expressed during operant ethanol self-administration. Alcohol Clin Exp Res. 2009;33(2):273–82. https://doi.org/10.1111/j.1530-0277.2008.00830.x.
Article
PubMed
Google Scholar
Orben A, Tomova L, Blakemore SJ. The effects of social deprivation on adolescent development and mental health. Lancet Child Adolesc Health. 2020;4(8):634–40. https://doi.org/10.1016/S2352-4642(20)30186-3.
Article
CAS
PubMed
PubMed Central
Google Scholar
Lim GY, Tam WW, Lu Y, Ho CS, Zhang MW, Ho RC. Prevalence of depression in the community from 30 countries between 1994 and 2014. Sci Rep. 2018;8(1):2861. https://doi.org/10.1038/s41598-018-21243-x.
Article
CAS
PubMed
PubMed Central
Google Scholar
Qiu J, Shen B, Zhao M, Wang Z, Xie B, Xu Y. A nationwide survey of psychological distress among Chinese people in the COVID-19 epidemic: implications and policy recommendations. Gen Psychiatr. 2020;33(2):e100213. https://doi.org/10.1136/gpsych-2020-100213 Erratum in: Gen Psychiatr. 2020 Apr 27;33(2):e100213corr1.
Article
PubMed
PubMed Central
Google Scholar
Lissak G. Adverse physiological and psychological effects of screen time on children and adolescents: Literature review and case study. Environ Res. 2018;164:149–57. https://doi.org/10.1016/j.envres.2018.01.015.
Article
CAS
PubMed
Google Scholar
Twenge JM, Campbell WK. Associations between screen time and lower psychological well-being among children and adolescents: evidence from a population-based study. Prev Med Rep. 2018;12:271–83. https://doi.org/10.1016/j.pmedr.2018.10.003.
Article
PubMed
PubMed Central
Google Scholar
Chao M, Xue D, Liu T, Yang H, Hall BJ. Media use and acute psychological outcomes during COVID-19 outbreak in China. J Anxiety Disord. 2020;74:102248. https://doi.org/10.1016/j.janxdis.2020.102248.
Article
PubMed
PubMed Central
Google Scholar
Resnyansky L. Social media, disaster studies, and human communication. IEEE Technol Soc Mag. 2014;33(1):54–65. https://doi.org/10.1109/MTS.2014.2301857.
Article
Google Scholar
Holman EA, Garfin DR, Silver RC. Media’s role in broadcasting acute stress following the Boston Marathon bombings. Proc Natl Acad Sci U S A. 2014;111(1):93–8. https://doi.org/10.1073/pnas.1316265110.
Article
CAS
PubMed
Google Scholar
Dubey S, Biswas P, Ghosh R, Chatterjee S, Dubey MJ, Chatterjee S, et al. Psychosocial impact of COVID-19. Diabetes Metab Syndr. 2020;14(5):779–88. https://doi.org/10.1016/j.dsx.2020.05.035.
Article
PubMed
PubMed Central
Google Scholar
Liu M, Ming Q, Yi J, Wang X, Yao S. Screen time on school days and risks for psychiatric symptoms and self-harm in mainland Chinese adolescents. Front Psychol. 2016;7:574. https://doi.org/10.3389/fpsyg.2016.00574.
Article
PubMed
PubMed Central
Google Scholar
Lachlan KA, Spence PR, Seeger M. Terrorist attacks and uncertainty reduction: Media use after September 11. Behav Sci Terror Polit Aggression. 2009;1(2):101–10. https://doi.org/10.1080/19434470902771683.
Article
Google Scholar
Burke M, Marlow C, Lento T. Social network activity and social wellbeing. CHI’10: Proceedings of the SIGCHI conference on human factors in computing systems. Atlanta: ACM Press; 2010. p. 1909–12.
Google Scholar
O'Donovan G, Blazevich AJ, Boreham C, Cooper AR, Crank H, Ekelund U, et al. The ABC of physical activity for health: a consensus statement from the British Association of Sport and Exercise Sciences. J Sports Sci. 2010;28(6):573–91. https://doi.org/10.1080/02640411003671212.
Article
PubMed
Google Scholar
Crisafulli A, Pagliaro P. Physical activity/inactivity and COVID-19. Eur J Prev Cardiol. 2020;18:2047487320927597. https://doi.org/10.1177/2047487320927597.
Article
Google Scholar
Rocha SF, Marocolo M, Corrêa EN, Morato GS, da Mota GR. Physical activity helps to control music performance anxiety. Med Probl Perform Art. 2014;29(2):111–2. https://doi.org/10.21091/mppa.2014.2022.
Article
PubMed
Google Scholar
Adams TB, Moore MT, Dye J. The relationship between physical activity and mental health in a national sample of college females. Women Health. 2007;45(1):69–85. https://doi.org/10.1300/J013v45n01_05.
Article
PubMed
Google Scholar
Jiménez-Pavón D, Carbonell-Baeza A, Lavie CJ. Physical exercise as therapy to fight against the mental and physical consequences of COVID-19 quarantine: Special focus in older people. Prog Cardiovasc Dis. 2020;63(3):386–8. https://doi.org/10.1016/j.pcad.2020.03.009.
Article
PubMed
PubMed Central
Google Scholar
Lippi G, Henry BM, Sanchis-Gomar F. Physical inactivity and cardiovascular disease at the time of coronavirus disease 2019 (COVID-19). Eur J Prev Cardiol. 2020;27(9):906–8. https://doi.org/10.1177/2047487320916823.
Article
PubMed
PubMed Central
Google Scholar
Rothon C, Edwards P, Bhui K, Viner RM, Taylor S, Stansfeld SA. Physical activity and depressive symptoms in adolescents: a prospective study. BMC Med. 2010;8:32. https://doi.org/10.1186/1741-7015-8-32.
Article
PubMed
PubMed Central
Google Scholar
Cao H, Qian Q, Weng T, Yuan C, Sun Y, Wang H, et al. Screen time, physical activity and mental health among urban adolescents in China. Prev Med. 2011;53(4-5):316–20. https://doi.org/10.1016/j.ypmed.2011.09.002.
Article
PubMed
Google Scholar
Kremer P, Elshaug C, Leslie E, Toumbourou JW, Patton GC, Williams J. Physical activity, leisure-time screen use and depression among children and young adolescents. J Sci Med Sport. 2014;17(2):183–7. https://doi.org/10.1016/j.jsams.2013.03.012.
Article
PubMed
Google Scholar
Trinh L, Wong B, Faulkner GE. The independent and interactive associations of screen time and physical activity on mental health, school connectedness and academic achievement among a population-based sample of youth. J Can Acad Child Adolesc Psychiatry. 2015;24(1):17–24.
PubMed
PubMed Central
Google Scholar
Vallance JK, Winkler EA, Gardiner PA, Healy GN, Lynch BM, Owen N. Associations of objectively-assessed physical activity and sedentary time with depression: NHANES (2005-2006). Prev Med. 2011;53(4-5):284–8. https://doi.org/10.1016/j.ypmed.2011.07.013.
Article
PubMed
Google Scholar
Teychenne M, Ball K, Salmon J. Physical activity and likelihood of depression in adults: a review. Prev Med. 2008;46(5):397–411. https://doi.org/10.1016/j.ypmed.2008.01.009.
Article
PubMed
Google Scholar
Ströhle A. Physical activity, exercise, depression and anxiety disorders. J Neural Transm (Vienna). 2009;116(6):777–84. https://doi.org/10.1007/s00702-008-0092-x.
Article
Google Scholar
Dunn AL, Trivedi MH, O'Neal HA. Physical activity dose-response effects on outcomes of depression and anxiety. Med Sci Sports Exerc. 2001;33(6 Suppl):S587–610. https://doi.org/10.1097/00005768-200106001-00027.
Article
CAS
PubMed
Google Scholar
Wicke T, Silver RC. A community responds to collective trauma: An ecological analysis of the James Byrd murder in Jasper, Texas. Am J Community Psychol. 2009;44(3-4):233–48. https://doi.org/10.1007/s10464-009-9262-8.
Article
PubMed
PubMed Central
Google Scholar
Janssen I. Estimating whether replacing time in active outdoor play and sedentary video games with active video games influences youth’s mental health. J Adolesc Health. 2016;59(5):517–22.
Article
PubMed
Google Scholar
Tremblay MS, LeBlanc AG, Kho ME, Saunders TJ, Larouche R, Colley RC, et al. Systematic review of sedentary behaviour and health indicators in school-aged children and youth. Int J Behav Nutr Phys Act. 2011;8:98.
Article
PubMed
PubMed Central
Google Scholar
Wu X, Tao S, Rutayisire E, Chen Y, Huang K, Tao F. The relationship between screen time, nighttime sleep duration, and behavioural problems in preschool children in China. Eur Child Adolesc Psychiatry. 2017;26:541–8.
Article
PubMed
Google Scholar
Oswald TK, Rumbold AR, Kedzior S, Moore VM. Psychological impacts of “screen time” and “green time” for children and adolescents: a systematic scoping review. PLoS One. 2020;15(9):e0237725.
Article
CAS
PubMed
PubMed Central
Google Scholar
Marques A, Calmeiro L, Loureiro N, Frasquilho D, de Matos MG. Health complaints among adolescents: Associations with more screen-based behaviours and less physical activity. J Adolesc. 2015;44:150–7.
Article
PubMed
Google Scholar
Bélanger M, Gallant F, Doré I, O'Loughlin JL, Sylvestre MP, Abi Nader P, et al. Physical activity mediates the relationship between outdoor time and mental health. Prev Med Rep. 2019;16:101006.
Article
PubMed
PubMed Central
Google Scholar
de Graaff AM, Cuijpers P, Acarturk C, Bryant R, Burchert S, Fuhr DC, et al. Effectiveness of a peer-refugee delivered psychological intervention to reduce psychological distress among adult Syrian refugees in the Netherlands: study protocol. Eur J Psychotraumatol. 2020;11(1):1694347–10.1080/20008198.2019.1694347.
Article
PubMed
PubMed Central
Google Scholar
Zhou X. Psychological crisis interventions in Sichuan Province during the 2019 novel coronavirus outbreak. Psychiatry Res. 2020;286:112895. https://doi.org/10.1016/j.psychres.2020.112895.
Article
CAS
PubMed
PubMed Central
Google Scholar
Duan L, Zhu G. Psychological interventions for people affected by the COVID-19 epidemic. Lancet Psychiatry. 2020;7(4):300–2. https://doi.org/10.1016/S2215-0366(20)30073-0.
Article
PubMed
PubMed Central
Google Scholar
Peluso MA, Guerra de Andrade LH. Physical activity and mental health: the association between exercise and mood. Clinics. 2005b;60(1):61–70. https://doi.org/10.1590/s1807-59322005000100012.
Article
PubMed
Google Scholar
Hammami A, Harrabi B, Mohr M, Krustrup P. Physical activity and coronavirus disease 2019 (COVID-19): specific recommendations for home-based physical training. Manag Sport Leis. 2020:1–6. https://doi.org/10.1080/23750472.2020.1757494.
Hinkley T, Brown H, Carson V, Teychenne M. Cross sectional associations of screen time and outdoor play with social skills in preschool children. PLoS One. 2018;13(4):e0193700.
Article
PubMed
PubMed Central
Google Scholar
Zhang X, Li M, Guo L, Zhu Y. Mental health and its influencing factors among left-behind children in South China: a cross-sectional study. BMC Public Health. 2019;19(1):1725.
Article
PubMed
PubMed Central
Google Scholar