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Total Energy Expenditure Assessment in Elite Junior basketball Players: A Validation Study Using Double Labeled Water.
MedLine Citation:
PMID:  22990574     Owner:  NLM     Status:  Publisher    
ABSTRACT: 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 (16-17 years) using double labeled water (DLW) as the reference method. DRI models and EI from dietary records over a 7-day period was simultaneously assessed for TEE estimation. Resting energy expenditure was assessed by indirect calorimetry. Fat and fat-free mass (FFM) were determined by a four-compartment model (body volume by air displacement plethysmography, bone mineral by DXA, and water by deuterium dilution). Fat and FFM ranged from 4-19 kg and 47-81 kg, respectively. The physical activity level ranged from 2.2 to 3.7 with a mean value of 2.8 ± 0.4. TEE from DLW (17598±3298 kJ/day) was significantly underestimated by EI (11274±2567 kJ/day) while no differences were found using DRI (17008±3206 kJ/day). 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.
Analiza M Silva; Diana A Santos; Catarina N Matias; Cláudia S Minderico; Dale A Schoeller; Luís B Sardinha
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-17
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
1Exercise and Health Laboratory, Faculty of Human Kinetics, Technical University of Lisbon, Portugal 2Department of Nutritional Sciences, University of Wisconsin, Madison, USA.
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