“…When studying the impact of PE on affect ( Bernstein & McNally, 2017a , 2017b , 2018 ), researchers often experimentally induce an emotion to produce similar levels of affect across participants before exercising, or to modify affect after exercising ( Barrett et al, 2007 ; Barrett & Bliss‐Moreau, 2009 ; Kuppens et al, 2013 ; Posner et al, 2005 ). Different strategies are used to induce negative emotions, including frustrating tasks ( Gratz et al, 2006 ; Sauer & Baer, 2012 ), electric shocks ( Seibert-Hatalsky & Wilson, 2011 ), videos of sexual abuse or domestic violence ( Chapman et al, 2010 ; Daros, Williams, et al, 2018 ; Elices et al, 2012 ; Jacob et al, 2011 ), remembering negative memories ( Sauer & Baer, 2012 ), music ( Diedrich et al, 2016 ) or emotionally charged images ( Sloan et al, 2010 ). Of these approaches, presenting videos that induce negative emotions has been shown to be the easiest, most acceptable, and most frequently used strategy (for a review, see Gilet, 2008 ).…”