The amount of energy you burn on a
daily basis can be split into two main categories — the energy you use
during physical
activity and the energy you use to carry out basic
functions such as breathing, keeping your heart beating and maintaining brain
activity.
The WHO - DAS was developed to operationalize the core dimensions in the International Classification of
Functioning, Disability, and Health.12 For this study, the WHO - DAS was streamlined to include 16 core questions that ask about level of difficulty carrying out
daily activities in the domains of self - care, mobility, productive
activity, social and family life, and community participation
during the past 30 days (eg, difficulties dressing oneself, walking outside the home, or understanding what people are saying in social conversations).