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Exercise induced sodium conservation: changes in plasma renin and aldosterone.
Med Sci Sports. 1976 Winter; 8(4):209-13.MS

Abstract

Previous studies have demonstrated a renal Na+ conservation during repeated days of exercise in the heat. The present study was intended to describe the role of plasma aldosterone (PAC) in reducing urine Na+ losses during and after 60 min of exercise (60% VO2max) in a warm environment (30 degrees C, 50-53% relative humidity). Additional measurements were made of plasma renin activity (PRA) in an effort to demonstrate the relationship between PRA and PAC. This study shows that a single bout of exercise can significantly reduce urine Na+, Cl-, and H20 excretions for up to 48 hours. Both PRA and PAC were significantly elevated during and immediately after exercise and returned to the pre-exercise level within 6-12 hours of recovery. Subsequently, ingestion of 180 mEq of Na+ each day with ad libitum water intake results in an increased NaCl storage and an expansion of the extracellular volume.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

1011955

Citation

Costill, D L., et al. "Exercise Induced Sodium Conservation: Changes in Plasma Renin and Aldosterone." Medicine and Science in Sports, vol. 8, no. 4, 1976, pp. 209-13.
Costill DL, Branam G, Fink W, et al. Exercise induced sodium conservation: changes in plasma renin and aldosterone. Med Sci Sports. 1976;8(4):209-13.
Costill, D. L., Branam, G., Fink, W., & Nelson, R. (1976). Exercise induced sodium conservation: changes in plasma renin and aldosterone. Medicine and Science in Sports, 8(4), 209-13.
Costill DL, et al. Exercise Induced Sodium Conservation: Changes in Plasma Renin and Aldosterone. Med Sci Sports. 1976;8(4):209-13. PubMed PMID: 1011955.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Exercise induced sodium conservation: changes in plasma renin and aldosterone. AU - Costill,D L, AU - Branam,G, AU - Fink,W, AU - Nelson,R, PY - 1976/1/1/pubmed PY - 1976/1/1/medline PY - 1976/1/1/entrez SP - 209 EP - 13 JF - Medicine and science in sports JO - Med Sci Sports VL - 8 IS - 4 N2 - Previous studies have demonstrated a renal Na+ conservation during repeated days of exercise in the heat. The present study was intended to describe the role of plasma aldosterone (PAC) in reducing urine Na+ losses during and after 60 min of exercise (60% VO2max) in a warm environment (30 degrees C, 50-53% relative humidity). Additional measurements were made of plasma renin activity (PRA) in an effort to demonstrate the relationship between PRA and PAC. This study shows that a single bout of exercise can significantly reduce urine Na+, Cl-, and H20 excretions for up to 48 hours. Both PRA and PAC were significantly elevated during and immediately after exercise and returned to the pre-exercise level within 6-12 hours of recovery. Subsequently, ingestion of 180 mEq of Na+ each day with ad libitum water intake results in an increased NaCl storage and an expansion of the extracellular volume. SN - 0025-7990 UR - https://www.unboundmedicine.com/medline/citation/1011955/Exercise_induced_sodium_conservation:_changes_in_plasma_renin_and_aldosterone_ L2 - https://Insights.ovid.com/pubmed?pmid=1011955 DB - PRIME DP - Unbound Medicine ER -