Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Age- and sex-standardised lean and fat indices derived from bioelectrical impedance analysis for ages 7–11 years : functional associations with cardio-respiritory fitness and grip strength

Sherriff, A. and Reilly, John J and Wright, C. and McColl, JH and Ness, AR and Emmett, P.M. (2009) Age- and sex-standardised lean and fat indices derived from bioelectrical impedance analysis for ages 7–11 years : functional associations with cardio-respiritory fitness and grip strength. British Journal of Nutrition, 101 (12). pp. 1753-1760. ISSN 0007-1145

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

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.

Item type: Article
ID code: 33585
Keywords: body composition, avon longitudinal study of parents and children, cardio-respiratory fitness;, epidemiology;, children, bioelectrical impedance, Science (General)
Subjects: Science > Science (General)
Department: Faculty of Humanities and Social Sciences (HaSS) > School of Psychological Science and Health > Physical Activity for Health
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 13 Oct 2011 11:24
Last modified: 07 Nov 2012 12:00
URI: http://strathprints.strath.ac.uk/id/eprint/33585

Actions (login required)

View Item