Abstract
Establishing the amount of energy needed to cover the energy demand of children doing sport training and thus ensuring they achieve an even energy balance requires the resting energy expenditure (REE) to be estimated. One of the methods that measures REE is the indirect calorimetry method, which may be influenced by many factors, including body composition, gender, age, height or blood pressure. The aim of the study was to assess the correlation between the resting energy expenditure of children regularly playing football and selected factors that influence the REE in this group. The study was conducted among 219 children aged 9 to 17 using a calorimeter, a device used to assess body composition by the electrical bioimpedance method by means of segment analyzer and a blood pressure monitor. The results of REE obtained by indirect calorimetry were compared with the results calculated using the ready-to-use formula, the Harris Benedict formula. The results showed a significant correlation of girls’ resting energy expenditure with muscle mass and body height, while boys’ resting energy expenditure was correlated with muscle mass and body water content. The value of the REE was significantly higher (p ≤ 0.001) than the value of the basal metabolic rate calculated by means of Harris Benedict formula. The obtained results can be a worthwhile suggestion for specialists dealing with energy demand planning in children, especially among those who are physically active to achieve optimal sporting successes ensuring proper functioning of their body.
Highlights
Introduction published maps and institutional affilIn order to function properly, a human being requires a sufficient amount of energy, which is present is food, to be supplied
Energy expenditure associated with body development intensive physical activity increases demand
Measurement or estimation of resting energy expenditure (REE) is usually the first step in determining energy demand, both in the general population and for people training in iations
Summary
Introduction published maps and institutional affilIn order to function properly, a human being requires a sufficient amount of energy, which is present is food, to be supplied. The human energy demand consists of resting energy expenditure (REE), exercise metabolism expenditures and body growth development energy expenditure. These three elements constitute total energy expenditure [1]. To determine the amount of energy needed to cover human energy demand and ensure that an even energy balance is achieved, the daily energy expenditure should be determined. It is very important that the energy demand associated with the processes of growth and development of the young body cannot be omitted [2]. Energy expenditure associated with body development intensive physical activity increases demand. Measurement or estimation of REE is usually the first step in determining energy demand, both in the general population and for people training in iations
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