“…Overall, 11 of the 22 included studies were parallel-group RCTs (Akcan et al, 2009;Castral et al, 2008;de Sousa Freire et al, 2008;Dezhdar et al, 2016;Gao et al, 2015;Holsti et al, 2011;Kostandy et al, 2008;Olsson et al, 2016;Sen & Manav, 2020;; V. V. , and 11 were randomized crossover trials (Axelin et al, 2006(Axelin et al, , 2009Cong et al, 2009Cong et al, , 2011Cong et al, , 2012Johnston et al, 2003Johnston et al, , 2008Johnston et al, , 2009Kristoffersen et al, 2019;Ludington-Hoe et al, 2005;Nimbalkar et al, 2013). Five studies were conducted in the United States (Cong et al, 2009(Cong et al, , 2011(Cong et al, , 2012Kostandy et al, 2008;Ludington-Hoe et al, 2005), six were conducted in Europe (Akcan et al, 2009;Axelin et al, 2006Axelin et al, , 2009Kristoffersen et al, 2019;Olsson et al, 2016;Sen & Manav, 2020), four were conducted in Canada (Holsti et al, 2011;Johnston et al, 2003Johnston et al, , 2008Johnston et al, , 2009, two were conducted in Brazil (Castral et al, 2008;de Sousa Freire et al, 2008), three were conducted in India (Nimbalkar e...…”