Abstract
The potential role of physical activity in the primary, secondary, tertiary and quarternary treatment of disease is examined with particular reference to the health care needs of the elderly. Areas requiring further research are stressed. On present evidence, it would appear likely that enhanced physical activity could make a useful contribution to the containment of health care expenditures; however, it still has to be established how far the gains of physical condition and resultant improvements of health status that are seen in younger individuals could be realized by the various categories of geriatric patient.