Ammar, AchrafTrabelsi, KhaledBrach, MichaelChtourou, HamdiBoukhris, OmarMasmoudi, LiwaBouaziz, BassemBentlage, EllenHow, DaniellaAhmed, MonaMueller, PatrickMueller, NotgerHammouda, OmarPaineiras-Domingos, Laisa LianeBraakman-jansen, AnnemarieWrede, ChristianBastoni, SophiaPernambuco, Carlos SoaresMataruna-Dos-Santos, Leonardo JoseTaheri, MortezaIrandoust, KhadijehKhacharem, AïmenBragazzi, Nicola LStrahler, JanaAdrian, JadAndreeva, AlbinaGlenn, Jordan MBott, Nicholas TGargouri, FaiezChaari, LotfiBatatia, Hadjkhoshnami, Samira CSamara, EvangeliaZisi, VasilikiSankar, ParasanthAhmed, Waseem NAli, Gamal MohamedAbdelkarim, OsamaJarraya, MohamedAbed, Kais ElMoalla, WassimRomdhani, MohamedAloui, AsmaSouissi, NizarGemertPijnen, Lisette VanRiemann, Bryan LRiemann, LaurelDelhey, JanGómez-Raja, JonathanEpstein, MoniqueSanderman, RobbertSchulz, SebastianJerg, AchimAl-Horani, RamziMansi, TaysirJmail, MohamedBarbosa, FernandoFerreira-Santos, FernandoŠimunič, BoštjanPišot, RadoPišot, SašaGaggioli, AndreaZmijewski, PiotrBailey, Stephen JSteinacker, JürgenChamari, KarimDriss, TarakHoekelmann, Anita2020-09-202020-09-20© 20212021Ammar, A., Trabelsi, K., Brach, M., Chtourou, H., Boukhris, O., & Masmoudi, L. et al. (2020). Effects of home confinement on mental health and lifestyle behaviours during the COVID-19 outbreak: Insight from the ECLB-COVID19 multicenter study. Biology of Sport, 38(1), pp. 9-21. https://doi.org/10.5114/biolsport.2020.968570860021Xhttps://doi.org/10.5114/biolsport.2020.96857http://hdl.handle.net/20.500.12519/235This article is licensed under Creative Commons License and full text is openly accessible in CUD Digital Repository. The version of the scholarly record of this article is published in Biology of Sport (2022), accessible online through this link https://doi.org/10.5114/biolsport.2020.96857Although recognised as effective measures to curb the spread of the COVID-19 outbreak, social distancing and self-isolation have been suggested to generate a burden throughout the population. To provide scientific data to help identify risk factors for the psychosocial strain during the COVID-19 outbreak, an international cross-disciplinary online survey was circulated in April 2020. This report outlines the mental, emotional and behavioural consequences of COVID-19 home confinement. The ECLB-COVID19 electronic survey was designed by a steering group of multidisciplinary scientists, following a structured review of the literature. The survey was uploaded and shared on the Google online survey platform and was promoted by thirty-five research organizations from Europe, North Africa, Western Asia and the Americas. Questions were presented in a differential format with questions related to responses “before” and “during” the confinement period. 1047 replies (54% women) from Western Asia (36%), North Africa (40%), Europe (21%) and other continents (3%) were analysed. The COVID-19 home confinement evoked a negative effect on mental wellbeing and emotional status (P < 0.001; 0.43 ≤ d ≤ 0.65) with a greater proportion of individuals experiencing psychosocial and emotional disorders (+10% to +16.5%). These psychosocial tolls were associated with unhealthy lifestyle behaviours with a greater proportion of individuals experiencing (i) physical (+15.2%) and social (+71.2%) inactivity, (ii) poor sleep quality (+12.8%), (iii) unhealthy diet behaviours (+10%), and (iv) unemployment (6%). Conversely, participants demonstrated a greater use (+15%) of technology during the confinement period. These findings elucidate the risk of psychosocial strain during the COVID-19 home confinement period and provide a clear remit for the urgent implementation of technology-based intervention to foster an Active and Healthy Confinement Lifestyle AHCL). © 2021 Institute of Sport. All rights reserved.enCreative Commons Attribution Share Alike 4.0 LicenseBehavioursDepressionMental wellbeingPandemicPublic healthSatisfactionArticleCopyright : © 2021 Institute of Sport. This is an Open Access article distributed under the terms of the Creative Commons Attribution Share Alike 4.0 License (https://creativecommons.org/licenses/by-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and remix, transform, and build upon the material for any purpose, even commercially, provided the original work is properly cited and states its license.