Document Detail

Effect of increased training volume on blood lipids and lipoproteins in male collegiate swimmers.
MedLine Citation:
PMID:  1833607     Owner:  NLM     Status:  MEDLINE    
This study was conducted to assess whether a previously described dose-response relationship between the amount of exercise and the magnitude of change in blood lipid and lipoprotein levels is observed with large volumes of exercise in young, healthy individuals. Blood lipid and lipoprotein levels were monitored during a 25-wk season of training and competition in experienced male collegiate swimmers, who were divided into two groups matched for swimming skill. After an initial 4-wk conditioning period for both groups, one group (N = 11) underwent a 6-wk period during which their training volume was increased from 22,000 m.wk-1 to 44,000 m.wk-1. The other group (N = 13) maintained their swimming distance at 22,000 m.wk-1 during this period. During the remaining 15 wk of the season, both groups swam approximately 22,000 m.wk-1. Swimmers' body weights did not change over the season, but body fat decreased significantly (P less than 0.01). No changes in HDL cholesterol were observed during the season in either the increased training or the regular training groups. Total and LDL cholesterol levels were lower at 20 wk than at the start of the study, but final levels did not differ from initial levels. Thus, the volume of swimming exercise may not be related to the degree of change in blood lipid and lipoprotein levels in healthy subjects with high activity levels.
S I Barr; D L Costill; W J Fink; R Thomas
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Publication Detail:
Type:  Journal Article; Meta-Analysis; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  23     ISSN:  0195-9131     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  1991 Jul 
Date Detail:
Created Date:  1991-11-13     Completed Date:  1991-11-13     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  795-800     Citation Subset:  IM; S    
Human Performance Laboratory, Ball State University, Muncie, IN 47306.
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MeSH Terms
Analysis of Variance
Body Composition / physiology
Body Weight
Lipids / blood*
Lipoproteins / blood*
Meta-Analysis as Topic
Physical Education and Training / methods*
Reg. No./Substance:
0/Lipids; 0/Lipoproteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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