Physical activity may be assessed in several different ways and different domains, such as through:
- Leisure-time activities, such as participation in organized or in unorganized sports, physical activities, and play;
- Commuting to work, school, for errands;
- Work-related activities;
- Activities related to chores and household tasks.
The CFLRI monitors trends in physical activity levels among adults over time in each of these domains. Traditionally, leisure-time physical activity has been often used as an important measure for determining overall physical activity, as it represents physical activity which is volitional (or activities which individuals choose to participate in as opposed to being part of work or chores).
Generally speaking, physical activity rates among adults have changed very little over the past 20 years, with about half of Canadian adults indicating that they are at least moderately active. Physical activity levels among adults have been found to vary by numerous individual and environmental factors. For example, physical activity rates are higher among men compared to women; and physical activity levels decrease with increasing age.
 Canadian Fitness and Lifestyle Research Institute. 2016-2018 Physical activity Monitor, Custom Tabulation
  Statistics Canada. Canadian Community Health Survey. Table 13-10-0096-01 Health characteristics, annual estimates.2018. Available here