Total energy expenditure assessment in elite junior basketball players: A validation study using doubly labeled water
An accurate assessment of total energy expenditure (TEE) during a competitive season is required. We aimed to validate TEE estimated by self-reported energy intake (EI) and the dietary reference intake (DRI) method in 19 elite basketball players
(aged 16-18 years) using doubly labeled water (DLW) as the reference method. The DRI models and EI from dietary records over a 7-day period were simultaneously assessed for TEE estimation. Resting energy expenditure was assessed by indirect
calorimetry. Fat and fat-free mass (FFM) were determined by a 4-compartment model (body volume by air displacement plethysmography, bone mineral by DXA, and water by deuterium dilution). Fat and FFM ranged from 4 to 19 kg and from 47 to 81 kg,
respectively. The physical activity level ranged from 2.2 to 3.7 with a mean value of 2.8 ± 0.4. Total energy expenditure from DLW (17,598 ± 3,298 kJ/d) was significantly underestimated by EI (11,274 ± 2,567 kJ/d), whereas no differences were found
using DRI (17,008 ± 3,206 kJ/d). The EI and DRI methods explained TEE from DLW by 34% (p = 0.057) and 44% (p = 0.002), respectively, and wide limits of agreement were observed. Our findings suggested that EI is not a valid tool for TEE assessment.
The DRI method may be valid at a group level but inaccurate for estimating individual TEE in young players during a demanding competitive season period.
© Copyright 2013 The Journal of Strength and Conditioning Research. National Strength & Conditioning Association. Kaikki oikeudet pidätetään.
Aiheet: | juniori huippu-urheilu koripallo energia-aineenvaihdunta tutkimusmenetelmä urheilufysiologia |
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Aihealueet: | urheilukilpailut junioriurheilu |
DOI: | 10.1519/JSC.0b013e31827361eb |
Julkaisussa: | The Journal of Strength and Conditioning Research |
Julkaistu: |
2013
|
Vuosikerta: | 27 |
Numero: | 7 |
Sivuja: | 1920-1927 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |