Document Detail

Differences in basal and postexercise osteocalcin levels in athletic and nonathletic humans.
MedLine Citation:
PMID:  3141015     Owner:  NLM     Status:  MEDLINE    
The levels of serum osteocalcin, in addition to other parameters, were monitored in athletic (N = 9) and nonathletic (N = 10) university male students before, immediately after, and 60 min after 30 min of exercise on a running ergometer and at a constant workload of approximately 50% of their maximum capacity; there was adequate replenishment of drinking water. In both groups, the increase in serum parathyroid hormone levels observed immediately after exercise correlated well with a decrease in ionized calcium as well as the total calcium, and also with an increase in serum phosphorus, whereas the concentration of serum albumin remained stable. The response of serum osteocalcin differed between the two groups, in that (1) the concentration before exercise was significantly higher in athletic than in nonathletic students (P less than 0.001), and (2) the maximum level was evident in the former group 60 min after exercise, whereas it was present in the latter group immediately after exercise. We speculate that athletic subjects have a higher turnover of bone status compared with nonathletic subjects.
S Nishiyama; S Tomoeda; T Ohta; A Higuchi; I Matsuda
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Calcified tissue international     Volume:  43     ISSN:  0171-967X     ISO Abbreviation:  Calcif. Tissue Int.     Publication Date:  1988 Sep 
Date Detail:
Created Date:  1988-12-22     Completed Date:  1988-12-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7905481     Medline TA:  Calcif Tissue Int     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  150-4     Citation Subset:  IM    
Department of Pediatrics, Kumamoto University Medical School, Japan.
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MeSH Terms
Alkaline Phosphatase / blood
Calcitonin / blood
Calcium / blood
Calcium-Binding Proteins / blood*
Fatty Acids, Nonesterified / blood
Hydrogen-Ion Concentration
Osteoblasts / metabolism
Parathyroid Hormone / blood
Phosphorus / blood
Reg. No./Substance:
0/Calcium-Binding Proteins; 0/Fatty Acids, Nonesterified; 0/Parathyroid Hormone; 104982-03-8/Osteocalcin; 7440-70-2/Calcium; 7723-14-0/Phosphorus; 9007-12-9/Calcitonin; EC Phosphatase

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