Document Detail

Effect of repeated exercise bouts on high density lipoprotein-cholesterol and its subfractions HDL2-C and HDL3-C.
MedLine Citation:
PMID:  8325718     Owner:  NLM     Status:  MEDLINE    
Nine sedentary men (mean age, 22.8 yrs) were studied during and after treadmill exercise at 65% VO2max to determine the number of repeated exercise bouts required to bring about a sustained elevation in HDL-cholesterol and its subfraction HDL2-C and HDL3-C. A Latin square counterbalanced design was used. Thirty minute exercise sessions were undertaken in the following patterns: (1) single bout, (2) two bouts on alternate days, and (3) three bouts on alternate days. The exercise bouts in patterns 2 and 3 were separated by 48 h. Patterns 1, 2 and 3 were conducted 7 days apart. Blood samples were obtained prior to each pattern and at 5 min, 24 and 48 h after the last session within each pattern. There were no significant differences in triglycerides and total cholesterol between the selected blood sampling points for all patterns. Total HDL-C remained higher (p < 0.05) than the pre-exercise level 5 min [pattern 1: 39.0 vs 41.2 mg.dl-1, pattern 2: 37.1 vs 39.2 mg.dl-1, pattern 3: 38.8 vs 42.7 mg.dl-1] and 24 h [pattern 1: 39.0 vs 39.4 mg.dl-1, pattern 2: 37.1 vs 39.1 mg.dl-1, pattern 3: 38.8 vs 42.6 mg.dl-1] post-exercise. Total HDL-C declined to pre-exercise values 48 h post-exercise in all patterns. HDL2-C was lower (p < 0.05) than pre-exercise 48 h for all exercise patterns. For all patterns, HDL3-C levels were higher (p < 0.05) at the 5 min and 48 h post-exercise time points than at the pre-exercise.(ABSTRACT TRUNCATED AT 250 WORDS)
T J Angelopoulos; R J Robertson; F L Goss; K F Metz; R E LaPorte
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of sports medicine     Volume:  14     ISSN:  0172-4622     ISO Abbreviation:  Int J Sports Med     Publication Date:  1993 May 
Date Detail:
Created Date:  1993-08-09     Completed Date:  1993-08-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  196-201     Citation Subset:  IM    
Human Energy Research Laboratory, University of Pittsburgh, PA 15261.
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MeSH Terms
Body Composition
Cholesterol, HDL / blood*
Exercise / physiology*
Lipoproteins, HDL / blood*
Lipoproteins, HDL2
Lipoproteins, HDL3
Time Factors
Triglycerides / blood
Reg. No./Substance:
0/Cholesterol, HDL; 0/Lipoproteins, HDL; 0/Lipoproteins, HDL2; 0/Lipoproteins, HDL3; 0/Triglycerides

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