生物阻抗分析法(BIA)可簡便、快速、無侵入性地估測身體組成。本研究以48名臺灣優秀男子角力選手為受測者(年齡20.1±1.2歲，身高170.0±5.7cm，體重73.7±14.0kg，身體質量指數(BMI)25.4±3.8 kg/m2)，以雙能X光吸收儀(DXA)為測量的效標，比較站立式八極板生物阻抗分析儀(BIA8)所估算出各肢段的瘦肉組織重量(LST) 與體脂率(BF%)，應用測得的阻抗值來搭配年齡、身高、體重，以多元線性迴歸分析來估測身體組成。結果顯示：BIA8與DXA在受測者族群於全身、上肢、下肢、軀幹與頭部的LST測量結果的相關性為( r=.94, 0.47, 0.89,0.86, P<.01)，BF%的相關係數皆為高度正相關且顯著(r>.83, P<.01)。
結論：BIA8用於男子角力選手在全身、下肢、軀幹與頭部的LST與BF%皆有高度正相關性，其測量結果具參考價值，但BIA8在上肢的LST測量結果則需小心判斷與應用。

　　Bioelectrical impedance analysis (BIA) can estimate body composition easily, rapidly and non-invasively. The purpose of this study was to estimate body composition of the elite male wrestlers with the BIA8 measurement to compare to dual-energy X-ray absorptiometry (DXA). Subjects were 48 elite male wrestlers with mean age at 20.1±1.2 years old, mean height at 170.0±5.7cm and mean weight at 73.7±14.0kg. The bioelectrical impedance analysis, age, height and weight were calculated to create a new linear regression equation (LR) to evaluate the lean soft tissue and the percentage body fat for elite male wrestlers. The relative correlations(R value) between the lean soft tissue (LST) measured by DXA and by BIA8 were .94 at whole body, 0.47 at arms, 0.89 at legs and 0.86 at trunk+head. The R values of percentage body fat (BF%) were all above .83. The conclusion was that BIA8 can predict body composition accurately. However, to predict the LST of arms should be used carefully.