title: Accuracy of the SenseWear Armband™ during ergocycling.
abstract: The present study aims to show the accuracy of a portable motion sensor, the SenseWear Armband, for the estimation of energy expenditure vs. energy expenditure measured by indirect calorimetry during ergocycling. 31 healthy adults (52% women; age: 26.7±6.3 years; Body Mass Index: 23.9±3.3 kg/m2) completed a 45-min ergocycling session at 50% of their VO2(peak). Despite a significant underestimation of 18.7±13.2 kcal during the first 10 min of the activity (T=5.06; p<0.001), we observed an overall good agreement between energy expenditure estimated by the SenseWear Armband during ergocycling and indirect calorimetry (260.3±80.1 vs. 287.8±97.1 kcal, respectively) (T=-2.148; p=0.04) and a significant intra-class correlation (r=0.81; p<0.001). The results of the present study indicate that the SenseWear Armband underestimated energy expenditure during a 45-min ergocycling session at a 50% VO2(peak) intensity, mainly during the first 10 min. Underestimation at the onset of the activity warrants further research.
authors.affiliation: Université de Montréal, Nutrition, Montréal, Canada.
authors.forename: A-S
authors.initials: AS
authors.lastname: Brazeau
authors.forename: A D
authors.initials: AD
authors.lastname: Karelis
authors.forename: D
authors.initials: D
authors.lastname: Mignault
authors.forename: M-J
authors.initials: MJ
authors.lastname: Lacroix
authors.forename: D
authors.initials: D
authors.lastname: Prud'homme
authors.forename: R
authors.initials: R
authors.lastname: Rabasa-Lhoret
mesh_terms: D000293:Adolescent; D000328:Adult; D001132:Arm; D001642:Bicycling / Q000502:physiology*; D002153:Calorimetry, Indirect / Q000379:methods; D004734:Energy Metabolism / Q000502:physiology; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D010101:Oxygen Consumption / Q000502:physiology*; D015203:Reproducibility of Results; D055815:Young Adult