“…The quality appraisal of the studies resulted in a rating of strong for four studies (Ryan et al, 2019;Kreis et al, 2007;Møller and Adamsen, 2010;Nagel et al, 2012). Moderate for twenty studies (Oakley, Wright and Ream, 2000;Chernecky, 2001;Campbell et al, 2004;Goossens et al, 2005;Martins et al, 2008;Molloy, Smith and Aitchison 2008;Johansson et al, 2009;Yamada et al, 2010;Goltz et al, 2013;Sharp et al, 2014;Alpenberg, Joelsson and Rosengren, 2015;Song and Oh, 2016;Edström, Lindqvist and Rosengren, 2016;Burbridge and Goyal, 2016;Minichsdorfer, et al, 2016;Yagi et al, 2016;Park and Lee, 2020). One study was rated as weak .…”