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. 2022 May 10;22(1):260.
doi: 10.1186/s12887-022-03326-x.

Longitudinal analysis of resting energy expenditure and body mass composition in physically active children and adolescents

Edyta Łuszczki  1 , Anna Bartosiewicz  2 , Maciej Kuchciak  3 , Katarzyna Dereń  2 , Łukasz Oleksy  4 , Olga Adamska  5 , Artur Mazur  6
Affiliations

Longitudinal analysis of resting energy expenditure and body mass composition in physically active children and adolescents

Edyta Łuszczki et al. BMC Pediatr. .

Abstract

Background: Monitoring body composition and changes in energy expenditure during maturation and growth is significant, as many components can influence body structure in adulthood. In the case of young players, when these changes can influence their strength and power, it seems to be equally important. Our aim was to examine whether resting energy expenditure (REE) and body composition would change after 10 months from baseline in physically active children and adolescents.

Methods: We obtained data from 80 children and adolescents aged 9 to 17 years at two measurement points: the baseline in September 2018 and after 10 months in July 2019. The study was carried out using a calorimeter (Fitmate MED, Cosmed, Rome, Italy), a device used to assess body composition using by the electrical bioimpedance method by means of a segment analyzer (TANITA MC-980). The Student's t-test and linear regression analysis were used. Using the stepwise forward regression procedure, the selection of factors in a statistically significant way that describes the level of REE was made.

Results: We noticed that REE was not significantly different between baseline (1596.94 ± 273.01 kcal) and after 10 months (1625.38 ± 253.26 kcal). When analyzing the difference in REE between studies girls, we found body height as a significant predictor. The results of our study show a negative relationship between growth and REE. Differences between sexes and age in REE between baseline and after 10 months were not significant.

Conclusions: Our study involving physically active children and adolescents, which used repeated objective measures and longitudinal statistical modeling to analyze them, was unable to demonstrate any interaction between body weight change, body composition measurements, and REE.

Keywords: Children and adolescents; Indirect calorimetry; Metabolism; Physical activity; Resting energy expenditure.

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Conflict of interest statement

The authors declare that they have no competing interests.

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