Single frequency bioelectrical impedance is a poor method for determining fat mass in moderately obese women

Veronica P Alvarez; John Dixon; Boyd Josef Gimnicher Strauss; Cheryl P Laurie; Timothy Bede Chaston; Paul Edmond O'Brien

Single frequency bioelectrical impedance is a poor method for determining fat mass in moderately obese women

Veronica P Alvarez, John Dixon, Boyd Josef Gimnicher Strauss, Cheryl P Laurie, Timothy Bede Chaston, Paul Edmond O'Brien

Research output: Contribution to journal › Article › Research › peer-review

21 Citations (Scopus)

Abstract

Background: The primary aim of weight loss intervention in obesity is the loss of fat mass (FM). Hence, determinations of changes in FM and fat free mass (FFM) during weight loss are of clinical value. The authors compared the clinical utility of SkinFold Thickness (SKF), tetrapolar bioelectrical impedance analysis (BIA) and a body mass index (BMI) based calculation, in determining changes in percentage of fat mass (Delta FM). Methods: Using dual X-ray absorptiometry (DEXA) measurements of FM as a standard, BIA, SKF and BMI were compared in 41 moderately obese women (BMI 30-35) before and after significant weight lost (-13.9 +/- 5.8 kg). Results: When measuring fat mass loss, SKF was precise and accurate with a bias of +0.86 +/- 6.16 , while the BMI-based estimation had a systematic bias of +6.36 +/- 6.04 (r(2) = 0.791, P

Original language	English
Pages (from-to)	211 - 221
Number of pages	11
Journal	Obesity Surgery
Volume	17
Issue number	2
Publication status	Published - 2007

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Cite this

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title = "Single frequency bioelectrical impedance is a poor method for determining fat mass in moderately obese women",

abstract = "Background: The primary aim of weight loss intervention in obesity is the loss of fat mass (FM). Hence, determinations of changes in FM and fat free mass (FFM) during weight loss are of clinical value. The authors compared the clinical utility of SkinFold Thickness (SKF), tetrapolar bioelectrical impedance analysis (BIA) and a body mass index (BMI) based calculation, in determining changes in percentage of fat mass (Delta FM). Methods: Using dual X-ray absorptiometry (DEXA) measurements of FM as a standard, BIA, SKF and BMI were compared in 41 moderately obese women (BMI 30-35) before and after significant weight lost (-13.9 +/- 5.8 kg). Results: When measuring fat mass loss, SKF was precise and accurate with a bias of +0.86 +/- 6.16 , while the BMI-based estimation had a systematic bias of +6.36 +/- 6.04 (r(2) = 0.791, P",

author = "Alvarez, {Veronica P} and John Dixon and Strauss, {Boyd Josef Gimnicher} and Laurie, {Cheryl P} and Chaston, {Timothy Bede} and O'Brien, {Paul Edmond}",

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journal = "Obesity Surgery",

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TY - JOUR

T1 - Single frequency bioelectrical impedance is a poor method for determining fat mass in moderately obese women

AU - Alvarez, Veronica P

AU - Dixon, John

AU - Strauss, Boyd Josef Gimnicher

AU - Laurie, Cheryl P

AU - Chaston, Timothy Bede

AU - O'Brien, Paul Edmond

PY - 2007

Y1 - 2007

N2 - Background: The primary aim of weight loss intervention in obesity is the loss of fat mass (FM). Hence, determinations of changes in FM and fat free mass (FFM) during weight loss are of clinical value. The authors compared the clinical utility of SkinFold Thickness (SKF), tetrapolar bioelectrical impedance analysis (BIA) and a body mass index (BMI) based calculation, in determining changes in percentage of fat mass (Delta FM). Methods: Using dual X-ray absorptiometry (DEXA) measurements of FM as a standard, BIA, SKF and BMI were compared in 41 moderately obese women (BMI 30-35) before and after significant weight lost (-13.9 +/- 5.8 kg). Results: When measuring fat mass loss, SKF was precise and accurate with a bias of +0.86 +/- 6.16 , while the BMI-based estimation had a systematic bias of +6.36 +/- 6.04 (r(2) = 0.791, P

AB - Background: The primary aim of weight loss intervention in obesity is the loss of fat mass (FM). Hence, determinations of changes in FM and fat free mass (FFM) during weight loss are of clinical value. The authors compared the clinical utility of SkinFold Thickness (SKF), tetrapolar bioelectrical impedance analysis (BIA) and a body mass index (BMI) based calculation, in determining changes in percentage of fat mass (Delta FM). Methods: Using dual X-ray absorptiometry (DEXA) measurements of FM as a standard, BIA, SKF and BMI were compared in 41 moderately obese women (BMI 30-35) before and after significant weight lost (-13.9 +/- 5.8 kg). Results: When measuring fat mass loss, SKF was precise and accurate with a bias of +0.86 +/- 6.16 , while the BMI-based estimation had a systematic bias of +6.36 +/- 6.04 (r(2) = 0.791, P

UR - http://www.springerlink.com/content/c875652n56hp1343/fulltext.pdf

M3 - Article

SN - 0960-8923

VL - 17

SP - 211

EP - 221

JO - Obesity Surgery

JF - Obesity Surgery

IS - 2

ER -

Single frequency bioelectrical impedance is a poor method for determining fat mass in moderately obese women

Abstract

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