Remains of our early, human-like ancestors, Australopithecus afarensis, have been dated as
3.5-3.8 million years old. Nearly 4 million years of evolution of the human family, Hominidae …

This report is the first report of the Surgeon General on physical activity and health. For more
than a century, the Surgeon General of the Public Health Service has focused the nation's …

This manuscript presents a brief summary of the substantial data supporting an inverse
relationship between the amount of habitual physical activity performed and a variety of …

It is reasonable to conclude that the risk exposure through physical activity is outweighed by
its overall benefits, and health authorities strongly encourage participation in moderate …

In 1995 the American College of Sports Medicine and the Centers for Disease Control and
Prevention published national guidelines on Physical Activity and Public Health. The …

The modern scientific study of physical activity began soon after World War II and focused on
the epidemic of cardiovascular disease that was beginning to engulf the Western world …

In adults, within the normal physical activity index range, the distribution of time spent at
activities with low and moderate intensity determines the physical activity level. High …

ObjectivesThere were two objectives: first, to review the existing data on energy costs of
specified activities in the light of the recommendations made by the Joint Food and …

The human body is designed for activity. For most of our history, physical activity was
required for survival, but technological advances have eliminated much of the need for hard …

Summary 1 Introduction 2 Definition and measurement of physical activity 2.1 Definition and
classification of physical activity 2.2 Measuring physical activity Key points 3 Physical activity …