title: [Pilot study on total energy expenditure by accelerometer and physical activity logs].
abstract: OBJECTIVE
  Using accelerometer and physical activity logs to evaluate daily energy expenditure, as to providing a simple and convenient method to survey the total energy expenditure (TEE).
  
  
  METHODS
  The different activity intensities recorded by accelerometer were distinguished into a certain different energy expenditure value by gas metabolism method. Forty-one participants wore the accelerometer for 7 days continuously and completed physical activity logs everyday at the same time. The total energy expenditure was evaluated by these methods.
  
  
  RESULTS
  Total energy expenditure evaluated by accelerometer was (9761 +/- 866) kJ/d [(2332 +/- 207) kcal/d, PAL 1.46 +/- 0.11] for male and (7526 +/- 879) kJ/d [ (1798 +/- 210) kcal/d,P AL 1.43 +/- 0.09 for female; whereas combining accelerometer and physical activity logs data showed that the total energy expenditure was (10 573 +/- 804) kJ/d [(2526 +/- 192) kcal d, PAL 1.58 +/- 0.10] for male, and 8191 +/- 737 kJ/d [(1957 +/- 176) kcal/d, PAL 1.56 +/- 0.08] for female.
  
  
  CONCLUSIONS
  Using accelerometer and physical activity logs to evaluate the total energy expenditure might be consistent with the existing data, so this method might be used to survey the individual energy expenditure and physical activity levels.
authors.affiliation: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Liu
authors.forename: Xiao-Guang
authors.initials: XG
authors.lastname: Yang
authors.forename: Ke-Ji
authors.initials: KJ
authors.lastname: Li
mesh_terms: D001827:Body Height; D015992:Body Mass Index; D001835:Body Weight; D004734:Energy Metabolism / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D009043:Motor Activity; D055815:Young Adult