Document Detail

The impact of physical exercise on calcium balance in healthy subjects during prolonged hypokinesia.
MedLine Citation:
PMID:  19729128     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine whether during hypokinesia (diminished movement) periodic physical exercise affects calcium (Ca(2+)) balance and Ca(2+) loss. METHODS: Studies were conducted on 30 physically healthy male volunteers during the preexperimental period of 30 days and the experimental period of 364 days. They were equally divided into three groups: active control subjects (ACS), hypokinetic subjects (HKS), and periodic training subjects (PTS). The ACS group ran an average distance of 9.3+/-1.2 km/d; the HKS group walked an average distance of 1.3+/-0.2 km/d; and PTS group walked and ran average distances of 1.3+/-0.2 km/d and 9.2+/-1.2 km/d for 5 and 2 days per week, respectively. RESULTS: Serum Ca(2+) level, fecal and urine Ca(2+) loss, and Ca(2+) imbalance increased (P<0.05) in the PTS and HKS groups compared with their preexperimental levels and the values in their respective ACS group. The serum Ca(2+) concentration, urine and fecal Ca(2+) loss, and Ca(2+) imbalance increased more (P<0.05) in the PTS group than in the HKS group. CONCLUSION: During hypokinesia, Ca(2+) imbalance is more evident with than without physical exercise and Ca(2+) loss is exacerbated more with higher than lower Ca(2+) imbalance.
Victor A Deogenov; Yan G Zorbas; Kostas K Kakuris; Yuri F Federenko
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Nutrition (Burbank, Los Angeles County, Calif.)     Volume:  25     ISSN:  1873-1244     ISO Abbreviation:  -     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-09-04     Completed Date:  2009-09-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802712     Medline TA:  Nutrition     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1029-34     Citation Subset:  IM    
European Foundation of Environmental Sciences, Athens, Greece.
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MeSH Terms
Analysis of Variance
Athletic Performance
Calcium / blood,  metabolism*,  urine
Exercise / physiology*
Feces / chemistry
Immobilization / adverse effects*
Young Adult
Reg. No./Substance:

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