Daley et al. [26] tested the feasibility of an exercise intervention program for women with postpartum de- pression in a pilot RCT and found comparatively similar results to ours. The intervention group showed a signifi- cantly higher self-efficacy for exercise compared to usual care, but the program did not improve depression scores. Assessment of the results suggested that it was difficult to increase exercise participation over the 12 week pe- riod due to women’s motivation. Especially, in the case of mothers with depressive symptoms, the acceptability of the intervention was important in addition to the ef- fecttiveness of the program. Any intervention designed to include high risk mothers with depression may have a real chance to reduce depressive symptoms.