Sports and measurement of components in urine--responses of renal blood flow, electrolytes and hormones and of excretion of proteins into urine to exercise

Suzuki, M.; Machida, K.

Rinsho Byori. Japanese Journal of Clinical Pathology 44(7): 627-632


ISSN/ISBN: 0047-1860
PMID: 8741492
Accession: 047422916

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Renal blood flow decreased depending on the increase in exercise intensity. The kidneys may have roles to conserve the electrolytes and body fluid, and maintenance of acid-base balance during and after severe exercise. Increases in plasma hormones involved in the regulation of electrolyte-water balance, and decreases in urine flow, Na, Cl and K excretions into urine were observed following moderate exercise under a warm environment. Inhibition of electrolytes and water excretion into urine following exercise in water was less than that following exercise on land. Exercise in water is good for patients with hypertension, obesity and a mild renal disease who have tendency to conserve sodium and/or water. Increase in urinary albumin excretion, glomerular-type proteinuria was observed after moderate exercise (50 approximately 75%HRmax) in the obese individuals who had higher levels of hematocrit, serum concentrations of triglyceride, total cholesterol, LDL-cho, apoprotein B, CIII, and fasting insulin. The findings suggest that moderate exercise causes a latent abnormality of renal glomerular basement membrane in the obese individuals who had an early disturbance of glucose-fatty metabolism.