Physical activity and child health.

Clinicians should direct greater attention to positive health, with particular reference to the role of physical activity, in optimising the well-being of a child. Vigorous physical activity slows maturation, particularly if there is associated energy imbalance or emotional stress, but it does not greatly affect body size. Well-designed exercise programmes enhance the immediate physical, psychomotor and intellectual attainments of a child. Long term health benefits depend on a continuation of the physical activity. Internal motivation and the creation of positive attitudes are thus important. Acute illness is not prevented by vigorous exercise, but it has a favourable effect on the course of many chronic diseases. There are certain risks, including physical injury, psychological stress, and (occasionally) cardiac deaths, but in general, an exercise regimen enhances well-being, favouring the balanced development of a child.