title: Test-retest reliability of a portable monitor to assess energy expenditure.
abstract: The ability of the SenseWear Armband (SWA) to estimate energy expenditure (EE) in adults is established. However, except for resting metabolic rate, the test-retest reliability of the SWA for the estimation of EE in adults is unknown. To explore reliability, 34 healthy adults (50% women; age, 26.7 ± 6.1 years; body mass index, 23.6 ± 3.3 kg·m(-2)) completed a 2-day study protocol. During 13 h of direct supervision, subjects completed, each day, 60 min of lying awake rest, 30 min of structured sedentary activity, 45 min of walking circuit, and 45 min of ergocycling at 50% of their peak oxygen uptake. For the remaining 10 h, subjects remained seated. The SWA showed significant intraclass correlations between the 2 days of testing for the overall 13 h of direct supervision (r = 0.97; p < 0.001), the lying awake rest (r = 0.98; p < 0.001), the structured sedentary activity (r = 0.62; p < 0.05), the walking circuit (r = 0.95; p < 0.001), and the standardized physical activity (r = 0.85; p < 0.001). The results of this study indicate that the SWA is a reliable tool to estimate EE during multiple activities. These data provide additional evidence of the usefulness of the SWA in monitoring EE in healthy adults.
authors.affiliation: Montreal Clinical Research Institute (IRCM), Montreal, QC, Canada.
authors.forename: Anne-Sophie
authors.initials: AS
authors.lastname: Brazeau
authors.forename: Antony D
authors.initials: AD
authors.lastname: Karelis
authors.forename: Diane
authors.initials: D
authors.lastname: Mignault
authors.forename: Marie-Josée
authors.initials: MJ
authors.lastname: Lacroix
authors.forename: Denis
authors.initials: D
authors.lastname: Prud'homme
authors.forename: Rémi
authors.initials: R
authors.lastname: Rabasa-Lhoret
mesh_terms: D000293:Adolescent; D000328:Adult; D004734:Energy Metabolism / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D055815:Young Adult