Browsing by Author "Chastin, Sebastien"

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    Advancing the global physical activity agenda: recommendations for future research by the 2020 WHO physical activity and sedentary behavior guidelines development group
    (2020-11-26) DiPietro, Loretta; Al-Ansari, Salih S; Biddle, Stuart J H; Borodulin, Katja; Bull, Fiona C; Buman, Matthew P; Cardon, Greet; Carty, Catherine; Chaput, Jean-Philippe; Chastin, Sebastien; Chou, Roger; Dempsey, Paddy C; Ekelund, Ulf; Firth, Joseph; Friedenreich, Christine M; Garcia, Leandro; Gichu, Muthoni; Jago, Russell; Katzmarzyk, Peter T; Lambert, Estelle; Leitzmann, Michael; Milton, Karen; Ortega, Francisco B; Ranasinghe, Chathuranga; Stamatakis, Emmanuel; Tiedemann, Anne; Troiano, Richard P; van der Ploeg, Hidde P; Willumsen, Juana F
    Abstract Background In July, 2019, the World Health Organization (WHO) commenced work to update the 2010 Global Recommendations on Physical Activity for Health and established a Guideline Development Group (GDG) comprising expert public health scientists and practitioners to inform the drafting of the 2020 Guidelines on Physical Activity and Sedentary Behavior. The overall task of the GDG was to review the scientific evidence and provide expert advice to the WHO on the amount of physical activity and sedentary behavior associated with optimal health in children and adolescents, adults, older adults (> 64 years), and also specifically in pregnant and postpartum women and people living with chronic conditions or disabilities. Methods The GDG reviewed the available evidence specific to each sub-population using systematic protocols and in doing so, identified a number of gaps in the existing literature. These proposed research gaps were discussed and verified by expert consensus among the entire GDG. Results Evidence gaps across population sub-groups included a lack of information on: 1) the precise shape of the dose-response curve between physical activity and/or sedentary behavior and several of the health outcomes studied; 2) the health benefits of light-intensity physical activity and of breaking up sedentary time with light-intensity activity; 3) differences in the health effects of different types and domains of physical activity (leisure-time; occupational; transportation; household; education) and of sedentary behavior (occupational; screen time; television viewing); and 4) the joint association between physical activity and sedentary time with health outcomes across the life course. In addition, we acknowledge the need to conduct more population-based studies in low- and middle-income countries and in people living with disabilities and/or chronic disease, and to identify how various sociodemographic factors (age, sex, race/ethnicity, socioeconomic status) modify the health effects of physical activity, in order to address global health disparities. Conclusions Although the 2020 WHO Guidelines for Physical Activity and Sedentary Behavior were informed by the most up-to-date research on the health effects of physical activity and sedentary time, there is still substantial work to be done in advancing the global physical activity agenda.
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    Community-Based Approaches to Reducing Health Inequities and Fostering Environmental Justice through Global Youth-Engaged Citizen Science
    (2021-01-21) King, Abby C; Odunitan-Wayas, Feyisayo A; Chaudhury, Moushumi; Rubio, Maria Alejandra; Baiocchi, Michael; Kolbe-Alexander, Tracy; Montes, Felipe; Banchoff, Ann; Sarmiento, Olga Lucia; Bälter, Katarina; Hinckson, Erica; Chastin, Sebastien; Lambert, Estelle V; González, Silvia A; Guerra, Ana María; Gelius, Peter; Zha, Caroline; Sarabu, Chethan; Kakar, Pooja A; Fernes, Praveena; Rosas, Lisa G; Winter, Sandra J; McClain, Elizabeth; Gardiner, Paul A; on behalf of the Our Voice Global Citizen Science Research Network
    Growing socioeconomic and structural disparities within and between nations have created unprecedented health inequities that have been felt most keenly among the world’s youth. While policy approaches can help to mitigate such inequities, they are often challenging to enact in under-resourced and marginalized communities. Community-engaged participatory action research provides an alternative or complementary means for addressing the physical and social environmental contexts that can impact health inequities. The purpose of this article is to describe the application of a particular form of technology-enabled participatory action research, called the Our Voice citizen science research model, with youth. An overview of 20 Our Voice studies occurring across five continents indicates that youth and young adults from varied backgrounds and with interests in diverse issues affecting their communities can participate successfully in multiple contributory research processes, including those representing the full scientific endeavor. These activities can, in turn, lead to changes in physical and social environments of relevance to health, wellbeing, and, at times, climate stabilization. The article ends with future directions for the advancement of this type of community-engaged citizen science among young people across the socioeconomic spectrum.