Assessment of physical activity, and physical fitness, in population surveys.
Smith
G D
GD
Morris
J N
JN
D004651:Employment; D004734:Energy Metabolism; D015444:Exercise; D006801:Humans; D007899:Leisure Activities; D005082:Physical Exertion; D010809:Physical Fitness; D011159:Population Surveillance; D011795:Surveys and Questionnaires