“…An increasing number of text message-delivered interventions have been used to support short-term physical activity and dietary behaviour change (Fjeldsoe et al, 2010b;Johnston et al, 2014;Maddison et al, 2014;O'Reilly et al, 2013;Prestwich et al, 2010;Spring et al, 2012) and weight loss in adults (Haapala et al, 2009;Patrick et al, 2009;Shaw et al, 2012;Siopis et al, 2014). A plethora of recent systematic reviews provide further support for the short-term efficacy of text message-delivered interventions across different health behaviours among different age groups and populations (Head et al, 2013;Jones et al, 2014;Mason et al, 2014;Poorman et al, 2014;Saffari et al, 2014;Whittaker et al, 2009).…”