Opportunities for people to be physically active exist in four major domains of one’s day-to-day life:

- At work, for example if a job involves manual labour;
- For transport, for example walking or cycling to school, work or to the shops;
- In domestic duties at home, for example housework, gardening or do-it-yourself;
- In leisure time, for example, in sports, exercise or recreational activities.

Despite the numerous opportunities for people to be physically active the majority of the population in the UK do very little or no physical activity in any of these domains.