“…Our results, including study objectives, demographics, details of the aquatic programmes, and tools used for measurement, are detailed in Table S1. The majority of studies did not have control groups for comparison; 14 studies were either case reports or case series with a small number of participants (Birkan et al, 2010; Bumin et al, 2003; Calderón‐Porras et al, 2012; Christodoulaki et al, 2018; Da Silva et al, 2018; do Canto Brancher et al, 2014; Hiromi et al, 2005; Jorgic et al, 2012; Kokaridas et al, 2000; Mackinnon, 1997; Shams‐Elden, 2017; Vascakov et al, 2015; Yilmaz et al, 2010; Yilmaz et al, 2004). Six studies that did include control groups did not randomize participants (Chu & Pan, 2012; Getz et al, 2007; Getz et al, 2012; Lai et al, 2015; Pan, 2010; Pan, 2011), and two had a cross‐over design in which the aquatic and control groups switched interventions after a period of time (Ballington & Naidoo, 2018; Jorgić et al, 2014).…”