Exercise in Treatment Resistant Depression (TRD): A Feasibility Study

Individuals in this group will receive moderate intensity exercise in addition to their usual care (Medications+/-Psychotherapy). The moderate intensity exercise program will involve gradual progression in exercise intensity and duration. During the first 4 weeks, participants will attend 3 supervised sessions/week and will be asked to complete at least 2 unsupervised aerobic exercise sessions/week. From weeks 5-8 the number of supervised sessions will be 2/week with at least 3 unsupervised aerobic exercise sessions/week. From weeks 9-12, the participants will have only 1 supervised session/week and will be asked to complete at least 4 unsupervised aerobic exercise sessions/week. In total, the participants will be required to complete 150 minutes of moderate physical activity/week.

The wait list/usual care group will continue with their usual standard treatment (Medications +/- Psychotherapy) as before.