title: Food intake and appetite following school-based high-intensity interval training in 9-11-year-old children.
abstract: Using a randomised cross-over design, free-living lunch intake and subjective appetite were examined in 10 children (9.8 ± 0.6 years) following high-intensity interval training (HIIT) versus a control sedentary (SED) period, within a school setting. The 22-min HIIT took place during a regular PE lesson and consisted of two rounds of 4 × 30 s sprints. Foods were offered at a regular school lunch immediately following HIIT and SED and were matched between conditions. All food was covertly weighed before and after the meal. Hunger, fullness and prospective consumption were reported immediately before and after HIIT/SED, using visual analogue scales. Heart rate was higher during HIIT than SED (159.3 ± 23.1 vs. 76.9 ± 2.2 bpm, P < 0.05). Lunch energy intake was not different (P = 0.52) following HIIT, compared to SED (2.06 ± 0.35 vs. 2.09 ± 0.29 MJ, respectively). There were no significant differences in macronutrient intake or subjective appetite (P > 0.05). Results suggest that HIIT can be implemented in a PE lesson immediately before lunch, without causing a compensatory increase in food consumption.
authors.affiliation: a School of Applied Social Sciences , Durham University , Durham , UK.
authors.forename: Anna
authors.initials: A
authors.lastname: Morris
authors.affiliation: a School of Applied Social Sciences , Durham University , Durham , UK.
authors.forename: Robert
authors.initials: R
authors.lastname: Cramb
authors.affiliation: a School of Applied Social Sciences , Durham University , Durham , UK.
authors.forename: Caroline J
authors.initials: CJ
authors.lastname: Dodd-Reynolds
mesh_terms: D001066:Appetite / Q000502:physiology*; D002648:Child; D018592:Cross-Over Studies; D003479:Curriculum; D004435:Eating / Q000502:physiology*; D002149:Energy Intake; D004739:England; D005260:Female; D006339:Heart Rate / Q000502:physiology; D000072696:High-Intensity Interval Training; D006801:Humans; D008297:Male; D010806:Physical Education and Training / Q000379:methods*; D012574:Schools; D057185:Sedentary Behavior
keywords: High-intensity interval training; appetite; children; food intake; physical education