Negative Cognitive Style, Rumination, And Negative Emotionality As Mediators Of The Antidepressive Effects Of Physical Activity Among Young Adults, Kara Pegram

Clinical Psychology Dissertations

Abstract

This study assessed whether three potential cognitive and affective mechanisms mediated the relationship between physical activity and depressive symptoms. Participants were 143 young adults between the ages of 18 and 29 (M = 19.29, SD = 1.65); the majority of participants were female (72%) and Caucasian (69.9%). Participants were followed across eight weeks and completed measures of trait and state rumination, negative emotionality, cognitive style, depressive symptoms, and physical activity. A mediated model was proposed hypothesizing negative association between physical activity and depression mediated by less rumination, negative emotionality, and cognitive style. Hypotheses were examined cross-sectionally and prospectively. …