当前位置： SCI文献检索 > EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY期刊下所有文献 > A comparison of three bioelectrical impedance analyses for predicting lean body mass in a population with a large difference in muscularity.

A comparison of three bioelectrical impedance analyses for predicting lean body mass in a population with a large difference in muscularity.

Abstract：

:This study tested the hypothesis that, as compared to whole-body bioelectrical impedance (BI) analysis, segmental BI analysis can estimate lean body mass (LBM) more accurately in a population with a large difference in muscularity. In addition to whole-body BI, which determines impedance (Z) between the wrist and ankle, two segmental BI analyses which determine the Z value of every body segment in each of (1) the arms, legs and trunk (distal BI) and (2) the upper arms, upper legs and trunk (proximal BI) were applied to a group of 125 male athletes and 75 non-athletes. The subjects were divided into validation and cross-validation groups. Simple and multiple regression analyses were applied to (length)(2)/Z (BI index) values for the whole-body and each body segment, to develop the prediction equations of LBM measured using air-displacement plethysmography. In the validation group, the SE of estimation was similar in the whole-body (3.4 kg, 5.4%), distal (3.4 kg, 5.5%) and proximal BI (3.3 kg, 5.2%) analyses. However, the whole-body and distal BI analyses produced systematical errors in the estimates of LBM. Moreover, the residuals in the two methods significantly (P < 0.05) correlated with the ratios of BI indices of the upper arms and upper legs to those of the arms and legs, respectively, calculated as variables approximating the relative development of lean tissues at the proximal area of limbs. On the other hand, the proximal BI analysis was validated and cross-validated. Thus, the accuracy of estimating LBM was similar in the whole-body and the two segmental BI analyses. However, the prediction equations derived from the use of the whole-body BI index and a combination of the arms, legs and trunk BI indices produced a systematical error relating to the difference between the limb segments in lean tissue development.

journal_name

Eur J Appl Physiol

journal_title

European journal of applied physiology

authors

Ishiguro N,Kanehisa H,Miyatani M,Masuo Y,Fukunaga T

doi

10.1007/s00421-004-1259-2

keywords:

subject

Has Abstract

pub_date

2005-05-01 00:00:00

pages

25-35

issue

1-2

eissn

1439-6319

issn

1439-6327

journal_volume

pub_type

临床试验,杂志文章

在线工具

A comparison of three bioelectrical impedance analyses for predicting lean body mass in a population with a large difference in muscularity.