Impairment | The loss or abnormality of a body structure or of a physiological or psychological function |
Activity | The nature and extent of functioning at the level of the person. Activities may be limited in nature, duration, and quality |
Contextual factors (participation) | Include the features, aspects and attributes of objects, structures, human made organisations, service provision, and agencies in the physical, social, and attitudinal environment in which people live and conduct their lives. Contextual factors include both environmental factors and personal factors |