title: Energy expenditure at work in physical education teachers.
abstract: The objective of this study was to quantify work energy expenditure (EE) in physical education (PE) teachers. Sixty-four (64) physical educators (49 men, 15 women) had their individualized linear function between heart rate (HR) and oxygen consumption measured by laboratory testing. HR was then recorded on 2 different days at work to estimate EE, correlated with a diary of daily tasks. Average absolute EE was low-to-moderate (2.7 ± 1.4 to 4.6 ± 2.5 kcal·min(-1)) and low when expressed in relative values (15.3 ± 6.1% to 24.8 ± 7.6% of VO2max). However, these physical educators often reached very high intensities (from 7.5 ± 7.9% to 23.8 ± 22.3% of work time at 100 bpm and more). PE teaching requires a light-to-moderate EE with more intense periods of physical activity. The variety of tasks performed (office work, supervision and monitoring, mixed participation and active participation) significantly influenced EE.
authors.affiliation: Département des sciences de l'activité physique, Université du Québec à Trois-Rivières, Canada. Electronic address: Francois.Trudeau@uqtr.ca.
authors.forename: François
authors.initials: F
authors.lastname: Trudeau
authors.affiliation: Département des sciences de l'activité physique, Université du Québec à Trois-Rivières, Canada. Electronic address: Louis.Laurencelle@uqtr.ca.
authors.forename: Louis
authors.initials: L
authors.lastname: Laurencelle
authors.affiliation: Département des sciences de l'activité physique, Université du Québec à Trois-Rivières, Canada. Electronic address: Claude.Lajoie@uqtr.ca.
authors.forename: Claude
authors.initials: C
authors.lastname: Lajoie
mesh_terms: D000328:Adult; D004734:Energy Metabolism; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D016272:Occupational Health; D010101:Oxygen Consumption / Q000502:physiology; D010806:Physical Education and Training; D010809:Physical Fitness / Q000502:physiology; D011792:Quebec
keywords: Heart rate; Oxygen consumption; Teaching