Assessing Body Composition With DXA and Bioimpedance: Effects of Obesity, Physical Activity, and Age
Eszter Völgyi,Frances A. Tylavsky,Arja Lyytikäinen,Harri Suominen,Markku Alen,Markku Alen,Sulin Cheng +6 more
TLDR
This study evaluated to what extent dual‐energy X‐ray absorptiometry (DXA) and two types of bioimpedance analysis (BIA) yield similar results for body fat mass in men and women with different levels of obesity and physical activity.Abstract:
Objective: This study evaluated to what extent dual-energy X-ray absorptiometry (DXA) and two types of bioimpedance analysis (BIA) yield similar results for body fat mass (FM) in men and women with different levels of obesity and physical activity (PA). Methods and Procedures: The study population consisted of 37–81-year-old Finnish people (82 men and 86 women). FM% was estimated using DXA (GE Lunar Prodigy) and two BIA devices (InBody (720) and Tanita BC 418 MA). Subjects were divided into normal, overweight, and obese groups on the basis of clinical cutoff points of BMI, and into low PA (LPA) and high PA (HPA) groups. Agreement between the devices was calculated by using the Bland–Altman analysis. Results: Compared to DXA, both BIA devices provided on average 2–6% lower values for FM% in normal BMI men, in women in all BMI categories, and in both genders in both HPA and LPA groups. In obese men, the differences were smaller. The two BIA devices provided similar means for groups. Differences between the two BIA devices with increasing FM% were a result of the InBody (720) not including age in their algorithm for estimating body composition. Discussion: BIA methods provided systematically lower values for FM than DXA. However, the differences depend on gender and body weight status pointing out the importance of considering these when identifying people with excess FM.read more
Citations
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Accuracy of direct segmental multi-frequency bioimpedance analysis in the assessment of total body and segmental body composition in middle-aged adult population
Carolina H. Y. Ling,Anton J. M. de Craen,P.E. Slagboom,Dave A. Gunn,Marcel P. M. Stokkel,Rudi G. J. Westendorp,Andrea B. Maier +6 more
TL;DR: DSM-BIA is a valid tool for the assessments of total body and segmental body composition in the general middle-aged population, particularly for the quantification of body lean mass.
Journal ArticleDOI
Obesity and the obesity paradox in heart failure.
TL;DR: This review explores various explanations for the obesity paradox, summarizes the current evidence for intentional weight loss treatments for HF in context, and explores the relationship of the Obesity paradox to cardiorespiratory fitness.
Journal ArticleDOI
Body composition assessment by dual-energy X-ray absorptiometry (DXA).
TL;DR: The application of dual-energy X-ray absorptiometry (DXA) on BC determination is discussed, given that DXA has the potential to provide overall and regional assessment of BC in terms of fat, lean mass and bone.
Journal ArticleDOI
Body composition determination by bioimpedance: an update
TL;DR: Low cost foot-to-foot impedance meters (body fat analyzers) with plantar electrodes on a body scale, that are easy and fast to use, have been compared with medical impedance meters and with dual X-ray absorptiometry measurements and found reasonably accurate, except for individuals with very low or high BMI.
Journal ArticleDOI
Comparison of segmental multifrequency bioelectrical impedance analysis with dual-energy X-ray absorptiometry for the assessment of body composition in a community-dwelling older population.
TL;DR: The purpose of the present study was to examine the agreement of segmental multifrequency bioelectrical impedance analysis (SMF‐BIA) for the assessment of whole‐body and appendicular fat mass (FM) and lean soft tissue mass (LSTM) in a community‐dwelling Japanese older population.
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