“…For example, when applied to illbeing, reductions in depressive symptomology were associated with exercise intensity as opposed to the frequency or duration of exercise (Craft & Landers, 1998;Dunn, Trivedi, Kampert, Clark, & Chambliss, 2005). Building on these findings, a number of researchers (e.g., Cerin et al, 2009;Molina-García, Castillo, & Queralt, 2011;Netz et al, 2005) have noted that the intensity of HEPA may play a unique role in predicting markers of well-being, especially when the strenuous nature of engagement is selected by the individual (i.e., it is volitional) as opposed to being imposed by others (Ekkekakis, Parfitt, & Petruzzello, 2011). Nevertheless, it is also noteworthy that Cerin et al (2009) found positive associations between frequency and amount (i.e., duration) of leisure-time HEPA and well-being.…”