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Energy Expenditure in Playground Games in Primary School Children Measured by Accelerometer and Heart Rate Monitors

Published on Oct 1, 2017in International Journal of Sport Nutrition and Exercise Metabolism2.217
· DOI :10.1123/ijsnem.2016-0122
Jorge Cañete García-Prieto8
Estimated H-index: 8
,
Vicente Martínez-Vizcaíno26
Estimated H-index: 26
+ 4 AuthorsRicardo Mora-Rodriguez25
Estimated H-index: 25
Abstract
The aim of this study was to examine the energy expenditure (EE) measured using indirect calorimetry (IC) during playground games and to assess the validity of heart rate (HR) and accelerometry counts as indirect indicators of EE in children´s physical activity games. 32 primary school children (9.9 ± 0.6 years old, 19.8 ± 4.9 kg · m-2 BMI and 37.6 ± 7.2 ml · kg-1 · min-1 VO2max). Indirect calorimetry (IC), accelerometry and HR data were simultaneously collected for each child during a 90 min session of 30 playground games. Thirty-eight sessions were recorded in 32 different children. Each game was recorded at least in three occasions in other three children. The intersubject coefficient of variation within a game was 27% for IC, 37% for accelerometry and 13% for HR. The overall mean EE in the games was 4.2 ± 1.4 kcals · min-1 per game, totaling to 375 ± 122 kcals/per 90 min/session. The correlation coefficient between indirect calorimetry and accelerometer counts was 0.48 (p = .026) for endurance games a...
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