Affect and cortisol mechanisms through which acute exercise attenuates cigarette cravings during a temporary quit...

Area of Science:

• Behavioral Science
• Addiction Research
• Exercise Physiology

Background:

• Exercise is proposed to reduce smoking cravings, but underlying mechanisms remain unclear.
• Previous research on exercise's effect on cravings has yielded inconsistent findings.
• Investigating the roles of affect and cortisol is crucial for understanding this relationship.

Purpose of the Study:

• To examine the mechanistic role of positive and negative affect and cortisol in reducing cravings among abstinent smokers.
• To compare the effects of moderate exercise versus passive sitting on craving reduction.

Main Methods:

• 110 adult smokers underwent a 10-minute intervention: either moderate exercise or passive sitting.
• Affective states (positive and negative) and cortisol levels were measured before and after the intervention.
• Mediation analyses were used to test the roles of affect and cortisol in the exercise-craving link.

Main Results:

• Moderate exercise significantly reduced smoking cravings compared to passive sitting.
• Positive and negative affect significantly mediated the relationship between exercise and craving reduction.
• Cortisol levels did not significantly mediate the exercise-craving reduction relationship.

Conclusions:

• Positive and negative affect are key mechanisms through which exercise attenuates smoking cravings.
• Findings support the use of exercise as an intervention to manage cravings in smoking cessation.
• Understanding these mechanisms can inform the development of targeted, effective smoking cessation strategies.