Seriously? I thought you'd be familiar with them since you're the one talking about what the best approaches are.

But OK.

PDF - http://cebp.nl/media/m1121.pdf - Exercise Treatment for Depression: Efficacy and Dose Rsponse

Aerobic exercise at a dose consistent with public health recommendations is an effective treatment for MDD (major depressive disorder) of mild to moderate severity.

http://www.sciencedirect.com/science/article/pii/0010440X89900576 - Comparing aerobic with nonaerobic forms of exercise in the treatment of clinical depression: A randomized trial

We compared aerobic with nonaerobic forms of exercise in the treatment of clinical depression. Ninety-nine inpatients, who met the DMS-III-R criteria for major depression, dysthymic disorder, or depressive disorder not otherwise specified (NOS), took part in the study. They were randomly assigned to two different physical training conditions, aerobic and nonaerobic. In both conditions, one hour of training was performed three times a week for a period of 8 weeks. There was a significant increase in maximum oxygen uptake (V̇O2 max) in the aerobic group; there was no change in the nonaerobic group regarding this variable. Depression scores in both groups were significantly reduced during the study, but there was no significant difference between the groups. The correlation between increase in physical fitness and reduction in depression scores was low. The study indicates that the antidepressive effects associated with exercises are not restricted to aerobic forms of training.

http://jama.jamanetwork.com/article.aspx?articleid=185157 - Antidepressant Drug Effects and Depression Severity

The magnitude of benefit of antidepressant medication compared with placebo increases with severity of depression symptoms and may be minimal or nonexistent, on average, in patients with mild or moderate symptoms.

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