Publication:

以雙能X光吸收儀驗證站立式八極板生物阻抗體組成儀用於大學男子優秀游泳選手之體組成測量研究

本研究目的在應用雙能X光吸收儀測量結果來交叉驗證站立式八極板生物阻抗之體組成分析儀於大學男子優秀游泳選手的全身與各肢段的體組成估測結果。以八極板生物阻抗體組成分析儀（BIA）與雙能X光吸收儀（DXA）針對台灣地區大學男子優秀游泳選手21名，進行全身（whole body）、軀幹（trunk）、上肢（upper limb）與下肢（lower limb）的非脂肪質量（FFM- fat free mass）、體脂率（FM%- fat mass %）的測量結果進行相關性分析、Bland-Altmen plots相差分佈分析之交叉比對。結果顯示大學男性游泳選手的全身、軀幹、下肢與上肢的非脂肪質量（FFM）在DXA與BIA兩者的測量相關係數、相差平均值（bias）（標準偏差±SD）分別為r=0.89, 0.70±2.17kg、0.77, 5.78±1.43kg、0.64, 0.39±0.96kg、0.44, -0.58±0.40kg。在全身、軀幹、下肢與上肢的脂肪率（FM%）在DXA與BIA兩者的測量相關係數、相差平均值（標準偏差）分別為r=0.89, -1.85±2.95%、0.84, -7.00±4.04%、0.70, 1.79±3.37%、0.75, 4.69±3.27%。故由研究結果可知站立式多肢段生物阻抗分析儀在全身、軀幹的FFM與FM%測量結果皆達高正相關性，且有較低的SD值，具一定的參考價值，但其下肢、上肢FFM與FM%的參考價值則有其限制。

The purpose of this study was used dual energy X－ray ab-sorptiometr(DXA) to cross-validation BC-418 Segmental Body Composition Analyzer(BIA8) to estimation the outstanding university male swimmers’ body composition of full body and each body segment. Twenty-one swimmers measure their whole body, trunk , upper limbs, lower limb, non-fat mass (FFM-fat free mass) and body fat percentage (FM% - fat mass%). It used correlation analysis, Bland-Altmen plots the distribution of cross-difference analysis comparison to determine mutuality. The results show that the non-fat mass, body, trunk, upper limbs and lower limbs (FFM) in both the BIA and DXA measurement correlation coefficient, the mean difference (bias) (standard deviation± SD) were R=0.89, 0.70(±2.17) kg, 0.77, 5.78(±1.43) kg, 0.64, 0.39(±0.96) kg, 0.44, -0.58(±0.40) kg. The results of the measure from the whole body, trunk’s FFM and FM% are high positive correlation, and also have a lower SD values, with a certain reference value. But the reference value of lower limb and upper limb’s FFM and FM% have its limitations.