title: Physical activity monitor for recording energy expenditure in pregnancy.
abstract: OBJECTIVE
  To determine whether the energy expenditure recorded with the physical activity monitor SenseWear™ Pro(2) Armband differs from that recorded with indirect calorimetry.
  
  
  METHODS
  Cross-sectional comparison of measures of energy expenditure.
  
  
  METHODS
  A convenient sample recruited from a randomized controlled trial.
  
  
  METHODS
  Twenty-nine pregnant women (24-43 years old).
  
  
  METHODS
  Energy expenditure was recorded with SenseWear™ Pro(2) Armband and a portable oxygen analyzer for 90 minutes while carrying out a variety of activities of different intensities.
  
  
  METHODS
  Energy expenditure recorded with the physical activity monitor SenseWear™ Pro(2) Armband.
  
  
  RESULTS
  Comparing energy expenditure during free-living activities, the mean differences and limits of agreements from Bland-Altman plots was -136±343 kJ, giving an underestimation of energy expenditure by 9%. The intraclass correlation coefficient was 0.85 (95% confidence interval 0.71-0.93; p<0.001), giving 85% of the variance explained by differences among individuals.
  
  
  CONCLUSIONS
  SenseWear™ Pro(2) Armband is a valid measure of energy expenditure during pregnancy.
authors.affiliation: Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway. sveinung.berntsen@mail.com
authors.forename: Sveinung
authors.initials: S
authors.lastname: Berntsen
authors.forename: Signe N
authors.initials: SN
authors.lastname: Stafne
authors.forename: Siv
authors.initials: S
authors.lastname: Mørkved
mesh_terms: D000328:Adult; D002153:Calorimetry, Indirect; D004734:Energy Metabolism / Q000502:physiology*; D005260:Female; D006801:Humans; D018670:Monitoring, Ambulatory; D009043:Motor Activity / Q000502:physiology*; D011247:Pregnancy / Q000502:physiology*; D016032:Randomized Controlled Trials as Topic