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Hannon, MP, Carney, DJ, Floyd, S, Parker, LJF, McKeown, J, Drust, B, Unnithan, VB, Close, GL and Morton, JP (2020) Cross-sectional comparison of body composition and resting metabolic rate in Premier League academy soccer players: Implications for growth and maturation. Journal of Sports Sciences. ISSN 0264-0414
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Cross-sectional comparison of body composition and resting metabolic rate in Premier League academy soccer players Implications for growth and maturation.pdf - Accepted Version Download (527kB) | Preview |
Abstract
For the first time we aimed to: (1) assess fat-free mass (FFM) and RMR in youth soccer players, (2) compare measured RMR to estimated RMR using previously published prediction equations, and (3) develop a novel population-specific prediction equation. In a cross-sectional design, 99 males from a Premier League academy underwent assessments of body composition (DXA) and RMR (indirect-calorimetry). Measured RMR was compared to estimated values from five prediction equations. A novel RMR prediction equation was developed using stepwise multiple regression. FFM increased (P<0.05) between U12 (31.6±4.2 kg) and U16 (56.3±5.3 kg) after which no further increases occurred (P>0.05). RMR in the U12s (1655±195 kcal.day−1), U13s (1720±205 kcal.day−1) and U14s (1846±218kcal.day−1) was significantly lower than the U15s (1957±128 kcal.day−1), U16s (2042±155 kcal.day−1), U18s (1875±180 kcal.day−1) and U23s (1941±197 kcal.day−1) squads (P>0.05). FFM was the single best predictor of RMR (r2=0.43; P<0.01) and was subsequently included in the novel prediction equation: RMR (kcal.day−1) = 1315 + (11.1 x FFM in kg). Both FFM and RMR increase from 12-16 years old, thus highlighting the requirement to adjust daily energy intake to support growth and maturation. The novel prediction RMR equation developed may help to inform daily energy requirements.
| Item Type: | Article |
|---|---|
| Additional Information: | This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 21/01/2020, available online: http://www.tandfonline.com/10.1080/02640414.2020.1717286 |
| Uncontrolled Keywords: | 1106 Human Movement and Sports Sciences, 1302 Curriculum and Pedagogy |
| Subjects: | R Medicine > RC Internal medicine > RC1200 Sports Medicine |
| Divisions: | Sport and Exercise Sciences |
| Publisher: | Taylor & Francis |
| Related URLs: | |
| Date of acceptance: | 8 January 2020 |
| Date of first compliant Open Access: | 21 January 2021 |
| Date Deposited: | 31 Mar 2020 10:07 |
| Last Modified: | 04 Sep 2021 07:41 |
| DOI or ID number: | 10.1080/02640414.2020.1717286 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/12509 |
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