Effects of Exercise Intensity on Renal Clearance Parameters

Hisao Suzuki, Kohji Miura, Kayo Takahashi, Soichiro Yoshida, Zensuke Ota, Shohei Kira

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A study was designed to examine the effects of exercise intensity on renal clearance parameters. Five healthy male subjects underwent exercise tests on an bicycle ergometer at 4 different work loads for 15 min. The indicators of exercise intensity employed were the percentage of maximal oxygen uptake (O2max), heart rate (HR) and blood lactate level (La). As parameters of renal clearance, para-aminohippurate clearance (CPAH), thiosulfate clearance (Cch10) and creatinine clearance (Ccr) were measured by the continuous infusion technique during the exercise. 1) The renal clearance parameters during exercise decreased linearly as the exercise intensity increased. The percentage of maximal oxygen uptake at the onset of the decreases in%CPAH,%Cchiu and%Ccr were 36, 45 and 47%O2max, respectively. 2) Among the indicators of exercise intensity, the decrease in La showed the closest correlation with renal clearance during the exercise. 3) The renal plasma flow, which was measured as CPAH, began to decrease linearly at a significantly lower exercise intensity than the glomerular filtration rate, which was measured as both Cchio and Ccr. The above results suggest that renal clearance parameters begin to decrease at the threshold as exercise intensity increases.

Original languageEnglish
Pages (from-to)147-155
Number of pages9
JournalJapanese Journal of Physical Fitness and Sports Medicine
Volume41
Issue number2
DOIs
Publication statusPublished - 1992

Keywords

  • Blood lactate
  • Glomerular filtration rate
  • Renal plasma flow
  • VO2max

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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