Problem
Depressive symptoms are consistently shown to be related to poor
smoking cessation outcomes. Aerobic exercise is a potential treatment
augmentation that, given its antidepressant and mood enhancing effect, may
bolster cessation outcomes for smokers with elevated depressive symptoms.
Lower enjoyment of physical activity may inhibit the acute mood enhancing
effects of aerobic exercise. The current study investigated the associations
between depressive symptoms, physical activity enjoyment and the acute mood
experience from exercise among low-active smokers with elevated depressive
symptoms.
Method
Daily smokers with elevated depressive symptoms (N=159;
Mage = 45.1, SD
= 10.79; 69.8% female) were recruited for a randomized
controlled exercise-based smoking cessation trial. Participants
self-reported levels of depressive symptoms, physical activity enjoyment,
and rated their mood experience (assessed as “mood” and
“anxiety”) before and after a standardized aerobic exercise
test.
Results
Hierarchical regression analysis revealed that depressive symptom
severity accounted for significant unique variance in physical activity
enjoyment (R2 =.041, t
= −2.61, p = .010), beyond the
non-significant effects of gender and level of tobacco dependence.
Additionally, physical activity enjoyment was a significant mediator of the
association between depressive symptom severity and acute mood experience
(“mood” and “anxiety”) following the
exercise test.
Conclusions
Physical activity enjoyment may explain, at least in part, how
depressive symptom severity is linked to the acute mood experience following
a bout of activity. Interventions that target increasing physical activity
enjoyment may ultimately assist in enhancing the mood experience from
exercise, and therefore improve smoking cessation likelihood, especially for
smokers with elevated depressive symptoms.