| dc.description.abstract |
This study examined the impact of exercise type (e.g., endurance or strength training),
volume and intensity on levels of depression symptomology in order to determine which
of these moderators improves outcome the most. Duke Physical Education (PE) students
were surveyed at the beginning of a school semester, three times during the semester,
and at the end of the semester to examine changes in depression symptoms over time
based on physical activity volume, type of exercise engaged in and perceived intensity
of PE workouts. In the non-clinical sample of previously active college students,
exercise had no impact on level of depression symptomology, regardless of type, volume
or intensity. However, pretest depression level significantly predicted change in
depression, indicating high levels of depression may be necessary to show substantial
improvement. Additionally, mood was improved immediately after each PE class. For
healthy college students, PE classes may provide short-term mood benefits but are
not useful as a long-term solution for distress or symptoms of depression. Future
studies should examine moderators of exercise in a previously active, clinically depressed
population.
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