Van Loan M D, Belko A Z, Mayclin P L, Barbieri T F
Am J Clin Nutr. 1987 Jul;46(1):5-8. doi: 10.1093/ajcn/46.1.5.
The ability of a new total-body electrical conductivity instrument (TOBEC) to monitor changes in body composition during weight reduction was examined. Twelve moderately overweight women were confined to a metabolic unit for a period of 8 wk, 2-wk baseline and 6-wk reduction periods, during which changes in body composition were assessed by densitometry and hydrometry. Additionally, TOBEC measures were taken to predict lean body mass (LBM) changes. A total of 6.6 kg body weight was lost during the 6-wk reduction period. A decline in LBM was observed during the first 3 wk of reduction, from 47.4 to 45.7 kg, with no further LBM decline observed. Changes observed in the TOBEC phase value corresponded to the observed changes in LBM and total body water (TBW) during baseline and reduction periods. TOBEC was sensitive to small changes in LBM and TBW and may be useful for monitoring composition changes during nutritional intervention programs.
对一种新型全身电导率仪（TOBEC）监测减重期间身体成分变化的能力进行了研究。12名中度超重女性被限制在代谢单元中8周，包括2周的基线期和6周的减重期，在此期间通过密度测定法和体液测定法评估身体成分的变化。此外，采用TOBEC测量来预测瘦体重（LBM）的变化。在6周的减重期内共减重6.6千克。在减重的前3周观察到LBM下降，从47.4千克降至45.7千克，之后未观察到LBM进一步下降。在基线期和减重期，TOBEC相位值的变化与观察到的LBM和全身水（TBW）的变化相对应。TOBEC对LBM和TBW的微小变化敏感，可能有助于监测营养干预计划期间的成分变化。
