Document Detail


Age- and sex-standardised lean and fat indices derived from bioelectrical impedance analysis for ages 7-11 years: functional associations with cardio-respiratory fitness and grip strength.
MedLine Citation:
PMID:  19025717     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Indices for lean and fat mass adjusted for height derived from bioelectrical impedance for children aged 7 years have been published previously and their usefulness in the clinical assessment of undernutrition has been demonstrated. However, there is a need for norms that cover a wider age range and to explore their functional significance. The aim of the present study is to derive lean and fat indices for children aged 7-11 years and investigate associations with objective measures of cardio-respiratory fitness and grip strength. Subjects were 9574 children participating in the Avon Longitudinal Study of Parents and Children (ALSPAC). Bioelectrical impedance analysis (BIA) data collected longitudinally between ages 7 and 11 were used to derive lean and fat indices using the method of standardised residuals. Cardio-respiratory fitness (CRF) (9 years) and grip strength (11 years) were also measured. Correlation coefficients and 95 % CI were calculated to assess the strength of association between lean index, fat index and CRF and grip strength. Equations for calculating lean and fat indices in children aged 7-11 years relative to the ALSPAC population are presented. Lean index was linearly associated with CRF (rboys 0.20 (95 % CI 0.15, 0.25), rgirls 0.26 (95 % CI 0.22, 0.30)) and grip strength (rboys 0.29 (95 % CI 0.26, 0.32), rgirls 0.26 (95 % CI 0.23, 0.29)). BMI showed slightly weaker associations, while fat index was unrelated to either CRF or grip strength. Lean indices relate to muscle function and fitness while fat index does not.
Authors:
Andrea Sherriff; Charlotte M Wright; John J Reilly; John McColl; Andy Ness; Pauline Emmett
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-11-24
Journal Detail:
Title:  The British journal of nutrition     Volume:  101     ISSN:  1475-2662     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-06-25     Completed Date:  2009-09-03     Revised Date:  2014-02-19    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  1753-60     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Age Factors
Anthropometry
Body Composition*
Body Mass Index
Child
Electric Impedance
Exercise Test
Female
Hand Strength
Humans
Linear Models
Longitudinal Studies
Male
Nutritional Status
Physical Fitness*
Reference Values
Sex Factors
Thinness / physiopathology
Grant Support
ID/Acronym/Agency:
G9815508//Medical Research Council; //British Heart Foundation; //Medical Research Council; //Wellcome Trust
Comments/Corrections
Erratum In:
Br J Nutr. 2009 Sep;102(5):792

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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