Temporal associations between objectively measured physical activity and depressive symptoms: An experience sampling...

Area of Science:

• Psychology
• Behavioral Science
• Mental Health Research

Background:

• Investigates the link between physical activity timing and mood regulation.
• Examines within-individual variations in depressive symptoms, positive affect, and negative affect.
• Considers baseline depressive symptom severity.

Purpose of the Study:

• To explore the relationship between the timing of physical activity and mood states.
• To understand how physical activity influences depressive symptoms and affect.
• To identify potential benefits for individuals with varying levels of depressive symptoms.

Main Methods:

• Employed experience sampling methodology (ESM) over 14 days.
• Measured real-time mood and depressive symptoms five times daily.
• Utilized activity sensors to track physical activity and PHQ-9 for baseline depression assessment.

Main Results:

• Physical activity was associated with reduced depressive symptoms and negative affect, and increased positive affect.
• Stronger effects were observed in individuals with higher baseline depressive symptoms.
• The timing of physical activity, particularly within 30 minutes before mood ratings, showed significant associations.

Conclusions:

• Physical activity is a potential intervention for managing depressive symptoms and improving affect.
• Individuals with higher depressive symptom levels may particularly benefit from incorporating physical activity.
• The positive effects of physical activity on mood can extend for up to 3 hours.