Dual tasks that comprise only cognitive tasks are more difficult to perform than dual tasks that include one physical task, especially for depressive subjects.34 Cognitive perfor- mance during exercise is still a matter of debate. Some studies have shown an impaired performance in complex tasks that depend on frontal functions,7,35 whereas other studies have shown improvement.5,6 Contrary to our expectations, we did not observe differences in cognitive function during exercise. However, this study was conducted with physically active patients, which might explain why we observed no impair- ment during exercise. Because the subjects included in this study were trained and adapted to the motor tasks, the processing demand required to perform the task was reduced (Task Automatization Hypothesis), thus minimizing the detrimental effect of the dual task