|Activity, Energy Expenditure and Energy Requirements of Infants and Children (International Dietary Energy Consultative Group - IDECG, 1989, 412 pages)|
|Methods to assess physical activity and the energy expended for it by infants and children|
|2. Methods of acquiring information on the physical activity of infants and children|
In adults, common ways of acquiring data on physical activity are (1) by questionnaire or record which may require an interviewer or may be self-administered; obviously, for young children a parent would be needed as an intermediary, (2) by some form of measurement of movement, including by direct observation, (3) by heart-rate recording, and (4) by direct measurement of energy expenditure.