Activity

In the International Classification of Functioning, Disability and Health (ICF), the term “activity” is used in the broadest sense to capture the execution of a task or action by an individual at any level of complexity. It represents the individual’s own perspective of their functioning. Activities include simple or basic physical functions of the person as a whole (e.g. grasping or moving a leg}, basic and complex mental functions (e.g. learning and applying knowledge), and collections of physical and mental activities at various levels of complexity (e.g. driving a car, interacting with people). Other examples of activities include taking care of oneself and household work activities (1). Activities of daily living: activities essential to an individual’s personal care, such as getting into and out of bed and chairs, dressing, eating, toileting and bathing, and grooming. A person’s ability to perform ADLs is often used as a measure of functional capabilities during the course of a disease or following an injury (2). Activity limitations (vA): Difficulties an individual may have in executing activities. An activity limitation encompasses all of the ways in which the execution of the activity may be affected; for example, doing the activity with pain or discomfort; too slowly or quickly, or not at the right time and place; awkwardly or otherwise not in the manner expected. Activity limitation may range from a slight to severe deviation (in terms of quality or quantity) in doing the activity, in a manner or to the extent that is expected of people without the health condition (1). Activity limitations (vB): are described as difficulties an individual may have in executing activities (inability to go for a walk, not being able to answer the phone) (3).

Source: (1) Measuring Health and Disability: Manual for WHO Disability Assessment Schedule (WHODAS 2.0) / edited by TB
Üstün, N Kostanjsek, S Chatterji, J Rehm.
(2) https://dictionary.apa.org/activities-of-daily-living
(3) My Life after the crash report (2017)