“…Of the 19 studies included, 11 were randomized control trials (RCTs; Dubbert, Morey, Kirchner, Meydrech, & Grothe, 2008; Elley, Kerse, Arroll, & Robinson, 2003; Lawton et al, 2009; Little et al, 2004; Murchie, Campbell, Ritchie, Simpson, & Thain, 2003; Mutrie et al, 2012; Piette et al, 2011; Purath, Keller, McPherson, & Ainsworth, 2013; Steptoe et al, 1999; van Sluijs et al, 2005), 2 were non-RCTs (Kinnunen et al, 2007; P. J. Naylor, Simmonds, Riddoch, Velleman, & Turton, 1999), and 6 were uncontrolled pretest–posttest studies (del Rey-Moya et al, 2013; Dubbert, Cooper, Kirchner, Meydrech, & Bilbrew, 2002; Josyula & Lyle, 2013; McKay et al, 2009; Sherman, Gilliland, Speckman, & Freund, 2007; Verwey et al, 2014). Fifteen of the 19 studies included control groups of participants who received usual primary care.…”