Physical Exercise for Late-Life Depression: Customizing an Intervention for Primary Care.

Area of Science:

• Geriatric Psychiatry
• Clinical Psychology
• Integrative Medicine

Background:

• Late-life major depression (LLMD) poses significant challenges in primary care settings.
• Integrating physical exercise (PE) with antidepressant (AD) pharmacotherapy requires understanding influencing factors.
• Psychiatric consultation-liaison programs (PCLPs) aim to enhance mental health care delivery in primary care.

Purpose of the Study:

• To identify individual and contextual factors affecting the clinical implementation of physical exercise (PE) as an adjunct to antidepressants (AD) for late-life major depression (LLMD).
• To explore the effectiveness of AD + PE compared to AD alone in LLMD patients.
• To assess the role of PCLPs and primary care physician (PCP) perspectives in adopting this combined treatment.

Main Methods:

• Secondary analysis of a randomized controlled trial involving 121 participants aged 65+ with LLMD.
• Participants received either AD (sertraline) or AD + PE.
• Analysis included identifying participant moderators of treatment effectiveness and exploring setting characteristics and PCP opinions.

Main Results:

• Older age (75+), polypharmacy, higher aerobic capacity, psychomotor slowing, and lower anxiety were associated with greater depression remission using AD + PE.
• Longer established PCLPs correlated with higher participant recruitment.
• Post-study, PCPs held positive views and were more inclined to adopt AD + PE for LLMD.

Conclusions:

• Combining PE with sertraline offers a promising strategy for managing LLMD, especially when tailored to individual patient profiles.
• PCLPs can facilitate the integration of such interventions into primary care settings.
• Positive PCP perceptions are crucial for the successful translation of combined PE and AD therapy into routine clinical practice.