“…Because aerobic and stretching exercises are characterized by efficient cardiorespiratory functioning (e.g., Mazzeo et al, 1998; Seifert and Secher, 2011; Zheng et al, 2015) and improved cognitive control (e.g.,Voss et al, 2010; Erickson et al, 2015), we expect that engaging in these types of exercise should enable people to exert greater self-control over grudges (Pontifex et al, 2011; Burnette et al, 2014; Erickson et al, 2014; Audiffren and Andre, 2015). In comparison, because anaerobic exercise is defined by short bursts of extremely high energy that limits cardiorespiratory functioning (Jung et al, 2012; Lefferts et al, 2014) and cognitive control (e.g., Chang et al, 2012b), we propose that engaging in this form of exercise should limit self-control over grudges (Oaten and Cheng, 2006; Pontifex et al, 2011). Moreover, we predicted that one downstream gain for victims of transgressions who engage in aerobic and stretching exercises would be greater forgiveness than those who engage in anaerobic exercises.…”