Depression is a one of the serious health problems among the elderly. Particularly elderly women seem to be more vulnerable to depression, as being a female is one of the factors of higher rates of depression. This sturdy frames a holistic view on depression, integrating mind and body in order to examine the relationship between physical activity and depression in the elderly women. Furthermore, it also aims to investigate the usefulness of object monitoring of physical activity as an indication of depression by utilizing the motor sensor equipment.