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Table 1 Definitions of the three constructs from the ICF Model [5]

From: The Disabilities of the Arm, Shoulder and Hand Questionnaire (DASH) can measure the impairment, activity limitations and participation restriction constructs from the International Classification of Functioning, Disability and Health (ICF)

Variable Definition
Impairments (I) Problems in body function or structures such as significant deviation or loss
  Body Functions are the physiological functions of the body systems (including psychological functions)
Body Structures are anatomical parts of the body such as organs, limbs and their components
Activity limitations (A) Difficulties an individual may have in executing activities
  Activity is the execution of a task or action by an individual
Participation restrictions (P) Problems an individual may experience in involvement in life situations
  Participation is the involvement in a life situation