BACKGROUND AND PURPOSE Cross-sectional studies have shown that patients with primary hip osteoarthritis (OA) have higher bone mineral density (BMD), higher BMI, lower lean body mass, and higher fat content. But it is unknown if this phenotype is found also in patients with knee OA and if it precedes OA or manifests as a result of the disease. PATIENTS AND METHODS We included 21 women and 18 m...

BACKGROUND Body mass index (BMI) does not make a distinction between fat mass and lean mass. In children, high fat mass appears to be associated with low maternal education, as well as low lean mass because maternal education is associated with physical activity. Therefore, BMI might underestimate true obesity in children of low-educated mothers. OBJECTIVE To investigate the associations of m...

To determine the body composition differences across age, 133 men with chronic spinal cord injury (SCI) (66 with tetraplegia, 67 with paraplegia) were compared with an age-, height-, and ethnicity-matched able-bodied male reference population (n = 100) using two different dual-energy X-ray absorptiometry densitometers. The effects of duration of injury, level, and completeness of lesion were an...

To test if obese adolescents systematically conserve energy, comparisons of basal metabolic rate (BMR) of obese, normal, and lean male and female adolescents were made. Obese had eleevated values by as much as 23% (P ≤ 0.05) expressed as kJ · 24 hr-1 compared to the normal and lean. When indexed to body mass (kJ · kg-BM-1 · hr-1 ), the BMR for the obese was depressed by as much as -53% (P ≤ 0.0...

RICHARD W. PAYNE Department of Haematology, Worcester Royal Infirmary, Worcester WR5 JHN, UK The further investigation of suspected polycythaemia in patients with an elevated venous haematocrit is a not infrequent problem in haematological practice. Measurement of the actual red cell mass (ARCM) in such patients is relatively simple, using standard radioisotope dilution techniques (Internationa...

BACKGROUND The lean phenotype of cystathionine beta-synthase-deficient homocystinuria and the positive association of plasma total cysteine (tCys) with body mass index (BMI) suggest that total homocysteine (tHcy) and tCys are associated with body composition. OBJECTIVES We aimed to study associations of tCys and tHcy with body composition in the general population. DESIGN Using data from 70...