“…Similar to other studies (Feltz, Kerr, & Irwin, 2011;Irwin, Scorniaenchi, Kerr, Eisenmann, & Feltz, 2012;Plante et al, 2010;Winchester et al, 2012), the peer-based aspect of the program not only encouraged ongoing program participation, but also increased patients' motivation to exercise harder during each session. It could be possible that receiving positive encouragement from others enhanced patients' belief in their ability to exercise (i.e., self-efficacy) and that this led to increases in effort (Hutchinson, Sherman, Martinovic, & Tenenbaum, 2008).…”