Table 2.

Definitions

Term	Definition
Domain	A domain is a practical and meaningful set of related physiological functions, anatomical structures, actions, tasks, or areas of life.
Activity level	The level of execution of meaningful tasks by an individual.
Capacity	The highest possible level of functioning of a person in a given domain at a given moment, measured in a standardized environment.
Perceived performance	The level of functioning subjectively experienced by a person in a given domain at a given moment in his/her current environment.
Actual performance	The objectively detectable level of functioning of a person in a given domain at a given moment in his/her current environment.
Amount of use	How often (frequency) or how much (quantity) the arm-hand is used.
Quality of use	The quality with which the arm-hand is used during tasks or movements.
Unimanual tasks	Tasks which are usually performed with one hand.
Bimanual tasks	Tasks which are usually performed with both hands.
Activities of daily living (ADL)	Activities a person normally performs in daily life including activities performed for self-care, work, household activities and leisure.
Basic ADL	Activities of daily living necessary to daily self-care, including personal hygiene, dressing, feeding, toileting, functional transfers and mobility [15].
Extended ADL	Activities of daily living, beyond basic ADL, related to home maintenance and required for independent living. For example cleaning, cooking, doing laundry and shopping [15]
Classification instrument	Instrument used to describe upper limb performance on a level of categories, rather than to attribute scores that quantify upper limb performance.