Learn More
The use of dual energy X-ray absorptiometry (DEXA) for the assessment of body composition was examined in 55 adults (26 male & 29 female) ranging in age from 19 to 65 years. DEXA measures of bone mineral content (BMC, g), bone mineral density (BMD, g/cm2) and soft tissue (ST) were based on differential energy attenuation at dual energy levels of 40 and 70(More)
Dual energy x-ray absorptiometry (DXA) measures body composition, tissue distribution, bone mineral content (BMC), and bone mineral density (BMD). Differences are possible due to software versions. This investigation examined body composition, tissue distribution, BMC, and BMD measurements using a DXA (Lunar Corp., Madison, WI) with different software(More)
The increase in body water during pregnancy is responsible for the largest portion of weight gain and is of interest of clinical practitioners. However, assessing changes in body fluids is not easily accomplished during pregnancy. The purpose of this study was to examine the accuracy of bioelectrical impedance spectroscopy for estimating fluid volumes(More)
The accuracy of prediction equations for estimating lean body mass (LBM) from total-body electrical conductivity (TOBEC) was examined by cross-validation. Two samples of adults, aged 18-35 yr, were drawn from separate geographic locations. LBM was determined by densitometry and TOBEC was measured with TOBEC II instrument. LBM and TOBEC were highly(More)
A second-generation total body electrical-conductivity instrument (TOBEC II) that uses convolution principles was evaluated. This study 1) examined the stability of the instrument, 2) validated the relationship of total body electrical conductivity to isotopically determined total body water (TBW) and densitometrically determined lean body mass (LBM), and(More)
The effect of a moderate energy intake plus exercise (MEEX) vs a low energy intake without exercise (LESD) on weight loss and energy expenditure was examined in two groups of moderately overweight women confined to a metabolic unit. An initial 2-week baseline period was used to determine weight maintenance energy requirement (ER). This was followed by a(More)
Determination of body composition by measuring total-body electrical conductivity (TOBEC) is based on the principle that body fat and fat-free mass (FFM) differ in electrical properties. In humans, we are able to estimate body composition only by indirect methods, which have been used to validate the TOBEC instrument. Relationships between TOBEC and body(More)
The purpose of this study was to determine whether meal ingestion pattern [large morning meals (AM) vs. large evening meals (PM)] affects changes in body weight, body composition or energy utilization during weight loss. Ten women completed a metabolic ward study of 3-wk weight stabilization followed by 12 wk of weight loss with a moderately energy(More)