Moderate exercise improves depression parameters in treatment-resistant patients with major depressive disorder

Mar 8, 2011Journal of psychiatric research

Moderate exercise improves depression symptoms in people with treatment-resistant major depression

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Abstract

A 26% remission rate was observed in treatment-resistant major depressive disorder patients participating in a 12-week home-based exercise program.

The exercise program included 30-45 minutes of walking, 5 days a week, for 12 weeks.
Participants in the exercise group demonstrated significant improvements in depression and functioning parameters, as indicated by lower scores on depression scales and higher functioning scores.
At the end of the study, none of the control group participants showed response or remission.
In the exercise group, 21% of participants showed a response to treatment, while 26% achieved remission, though these results were not statistically significant.

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BACKGROUND: Treatment-resistant major depressive disorder (MDD) is a complex condition, with very low remission rates. Physical exercise has been used, with some encouraging results, as an alternative therapy in other depressive disorders. This study assessed the impact on depression and functioning parameters of a moderate intensity exercise program, as an adjuvant to pharmacotherapy, in treatment-resistant MDD patients.

METHODS: 150 individuals with treatment-resistant MDD, defined as taking combined therapy in doses considered adequate for 9-15 months, without showing clinical remission, were initially screened. 33 were randomized to one of two groups: usual pharmacotherapy (N = 11) and usual pharmacotherapy plus aerobic exercise (N = 22). The exercise program consisted of home-based 30-45 min/day walks, 5 days/week, for 12 weeks, being 1 walk per week supervised.

RESULTS: The exercise group showed improvement of all depression and functioning parameters, as indicated by lower HAMD17, BDI and CGI-S and higher GAF (p < 0.05) at last observation compared both to baseline values and to control group. At the end of the study none of the participants in the control group showed response or remission, whilst in the exercise group 21% of participants showed response and 26% remission, although these differences were not statistically significant.

CONCLUSION: A 12 week, home-based exercise program of 30-45 min/day walks, 5 days/week, improved depression and functioning parameters in treatment-resistant MDD patients, and contributed to remission of 26% of these patients. Moderate intensity exercise may be a helpful and effective adjuvant therapy for treatment-resistant MDD.

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Moderate exercise improves depression parameters in treatment-resistant patients with major depressive disorder

Abstract

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