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Expressing fat-free mass (FFM) and body fat mass (BFM) as percentages of body weight or by weight is unsatisfactory. For example, tall patients with protein-energy malnutrition (PEM) can exhibit values for FFM and BFM similar to those of shorter well-nourished individuals. To obviate such difficulties, we propose use of height-normalized indices, namely, a(More)
This study was designed to identify psychological, behavioral, and physiological correlates of short- and long-term weight loss. Measures of psychological functioning, body composition, fat cell size and number, and attendance were evaluated in 76 obese women for their relationship to weight loss at the end of treatment and at a 1-y follow-up evaluation.(More)
The effects of starvation, an 800-kcal mixed diet and an 800-kcal ketogenic (low carbohydrate-high fat) diet on the composition of weight lost were determined in each of six obese subjects during three 10-day periods. The energy-nitrogen balance method was used to quantify the three measurable components of weight loss; protein, fat, and water. On the(More)
Obese individuals maintained for 64 days on either of two low-calorie diets (600-800 kcal/day), consisting of protein alone or protein plus carbohydrate, varied widely in the extent of their cumulative nitrogen deficits. Rates of weight loss showed little correlation with rates of nitrogen loss after the first 28 days of the study. The low-calorie diet(More)
OBJECTIVE To examine the accuracy and precision of 12 equations or tables for predicting resting metabolic rate (RMR) in obese persons. DESIGN Observational (correlational) study. SETTING Obesity Research Center, St Luke's/Roosevelt Hospital, New York, NY. SUBJECTS/SAMPLES One hundred twenty-six (73 women, 53 men) healthy, obese subjects recruited(More)
Although the association between body weight and blood pressure is irrefutable, body fat mass and blood pressure level may not necessarily be directly related. To clarify the relative contribution of fat mass to blood pressure level, we analyzed data on 399 adults consecutively entering a weight control program. Although most subjects were notably(More)
Measurement of total body electrical conductivity (TOBEC) has been used to estimate lean and fat content of meat based on the principle that electrical conductivity of lean tissue is far greater than that of fat. This approach was used to estimate body composition of live rats. An instrument designed for commercial analysis of ground meat (DjMe 100) was(More)
The relation between change in resting metabolic rate (RMR) and change in fat-free mass (FFM) after weight loss is not well understood and is often inappropriately expressed in kilocalories per unit of FFM. We measured RMR and FFM in 35 obese patients enrolled in a conservative weight-loss program. RMR per kilogram FFM was not different after weight loss.(More)
We measured the effects of iopanoic acid on thyroid hormone metabolism in obese men during severe calorie restriction to study the nutrition regulation of thyroid hormone metabolism. Eight morbidly obese men received a weight-maintenance diet followed by 6 wk of 600 kcal/d. During underfeeding, patients received iopanoic acid or placebo for 2-wk periods in(More)
Adult male Sprague-Dawley rats were fasted for 65 h and then refed ad libitum for 8 days, during which time body weight and body composition returned to the levels of nonfasting controls. During refeeding, after a decrease on the lst day, daily food intake was moderately increased above control levels. This compensatory increase after the fast brought the(More)