Do different obesity-criteria result in different phenotypes in older people?
Date
2016-09-14Author
Theodorakopoulos, Christos
Jones, Jacklyn
Bannerman, E.
Greig, C. A.
Metadata
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Theodorakopoulos, C., Jones, J., Bannerman, E. & Greig, C. A. (2016) Do different obesity-criteria result in different phenotypes in older people? [Abstract]. Clinical Nutrition, 35(Suppl. 1), p. S23.
Abstract
Rationale: Sarcopenic obesity is a public health concern but
identification of obesity in older age is challenging.1 The aim of
this study was to identify and compare obesity phenotypes
using two different criteria. Methods: In a sample of Scottish community dwellers aged
≥65 y, body composition (assessed using dual Bioelectrical
Impedance Analysis) and strength (measured using handgrip
dynamometry) were compared, defining obesity as (a) Body
Mass Index (BMI) >30 kg*m−2 or (b) %body fat (%BF) >28% (m)
and >40% (f ).2 A Mann-Whitney test was used to detect
differences in obese vs non-obese phenotypes. Results: 108 participants, median (IQR) age 70 (67, 75)y,
were screened. Based on BMI classification, obese adults
had a significantly higher skeletal muscle mass (SMM) than
the non-obese, however strength was not different between
the groups (Table 1). Based on %BF the opposite pattern
was observed; the non-obese adults had higher SMM and were
also stronger than the obese. %BF identified more cases of
obesity Conclusion: Classification of the older obese phenotype is
dependent upon method of assessment. A consensus for the
definition criteria of obesity in older age is crucial in order to
identify obesity and sarcopenic obesity.