<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Schutz Y</dc:creator>
  <dc:creator>Kyle UU</dc:creator>
  <dc:creator>Pichard C</dc:creator>
  <dc:date>2002</dc:date>
  <dc:description xmlns:ns0="xml" ns0:lang="en">OBJECTIVE
To determine reference values for fat-free mass index (FFMI) and fat mass index (FMI) in a large Caucasian group of apparently healthy subjects, as a function of age and gender and to develop percentile distribution for these two parameters.


DESIGN
Cross-sectional study in which bioelectrical impedance analysis (50 kHz) was measured (using tetrapolar electrodes and cross-validated formulae by dual-energy X-ray absorptiometry in order to calculate FFMI (fat-free mass/height squared) and FMI (fat mass/height squared).


SUBJECTS
A total of 5635 apparently healthy adults from a mixed non-randomly selected Caucasian population in Switzerland (2986 men and 2649 women), varying in age from 24 to 98 y.


RESULTS
The median FFMI (18-34 y) were 18.9 kg/m(2) in young males and 15.4 kg/m(2) in young females. No difference with age in males and a modest increase in females were observed. The median FMI was 4.0 kg/m(2) in males and 5.5 kg/m(2) in females. From young to elderly age categories, FMI progressively rose by an average of 55% in males and 62% in females, compared to an increase in body mass index (BMI) of 9 and 19% respectively.


CONCLUSIONS
Reference intervals for FFMI and FMI could be of practical value for the clinical evaluation of a deficit in fat-free mass with or without excess fat mass (sarcopenic obesity) for a given age category, complementing the classical concept of body mass index (BMI) in a more qualitative manner. In contrast to BMI, similar reference ranges seems to be utilizable for FFMI with advancing age, in particular in men.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>https://sonar.ch/global/documents/165611</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>info:eu-repo/semantics/altIdentifier/doi/10.1038/sj.ijo.0802037</dc:relation>
  <dc:relation>info:eu-repo/semantics/altIdentifier/pmid/12080449</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:source>International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity. - 2002</dc:source>
  <dc:subject xmlns:ns1="xml" ns1:lang="en">Adipose Tissue</dc:subject>
  <dc:subject xmlns:ns2="xml" ns2:lang="en">Adolescent</dc:subject>
  <dc:subject xmlns:ns3="xml" ns3:lang="en">Adult</dc:subject>
  <dc:subject xmlns:ns4="xml" ns4:lang="en">Aged</dc:subject>
  <dc:subject xmlns:ns5="xml" ns5:lang="en">Aged, 80 and over</dc:subject>
  <dc:subject xmlns:ns6="xml" ns6:lang="en">Body Composition</dc:subject>
  <dc:subject xmlns:ns7="xml" ns7:lang="en">Body Mass Index</dc:subject>
  <dc:subject xmlns:ns8="xml" ns8:lang="en">Cross-Sectional Studies</dc:subject>
  <dc:subject xmlns:ns9="xml" ns9:lang="en">Electric Impedance</dc:subject>
  <dc:subject xmlns:ns10="xml" ns10:lang="en">Female</dc:subject>
  <dc:subject xmlns:ns11="xml" ns11:lang="en">Humans</dc:subject>
  <dc:subject xmlns:ns12="xml" ns12:lang="en">Male</dc:subject>
  <dc:subject xmlns:ns13="xml" ns13:lang="en">Middle Aged</dc:subject>
  <dc:subject xmlns:ns14="xml" ns14:lang="en">Obesity</dc:subject>
  <dc:subject xmlns:ns15="xml" ns15:lang="en">Reference Values</dc:subject>
  <dc:subject xmlns:ns16="xml" ns16:lang="en">Regression Analysis</dc:subject>
  <dc:title xmlns:ns17="xml" ns17:lang="en">Fat-free mass index and fat mass index percentiles in Caucasians aged 18-98 y.</dc:title>
  <dc:type>http://purl.org/coar/resource_type/c_6501</dc:type>
</oai_dc:dc>