Body composition of 10 control subjects and 37 spinal cord injured (SCI) patients was measured by dilution of 3H2O and Na2 35SO4. SCI patients were classified into four groups by ascending level of lesion, low and high paraplegics and low and high quadriplegics. The studies show diminishing total body water, intracellular water, lean body mass and body cell mass and increasing fat mass with higher spinal lesions. No differences in body weight or extracellular water were observed so that the ratio of extracellular water/total body water was increased as the level of injury increased.
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