title: Urinary creatinine excretion and lean body mass.
abstract: In a group of 34 adult and child subjects a high correlation (r = 0.988) was found between lean body mass, as determined by potassium-40 counting, and urinary creatinine excretion. The effect of technical errors was reduced by averaging the results of two or three 40K assays on each subject, and by making consecutive 3-day collections of urine. It appears that one can make a reasonable estimate of lean body mass from urinary creatinine excretion.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001824:Body Constitution; D002648:Child; D003404:Creatinine / Q000652:urine*; D005260:Female; D013006:Growth Hormone / Q000172:deficiency; D006801:Humans; D008297:Male; D008875:Middle Aged; D011197:Potassium Radioisotopes
chemical_list: D011197:Potassium Radioisotopes; D013006:Growth Hormone; D003404:Creatinine