Document Detail

Effects of maternal exercise on liver and skeletal muscle glycogen storage in pregnant rats.
MedLine Citation:
PMID:  1757296     Owner:  NLM     Status:  MEDLINE    
To examine the effects of maternal exercise on liver and skeletal muscle glycogen storage, female Sprague-Dawley rats were randomly divided into control, nonpregnant runner, pregnant nonrunning control, pregnant runner, and prepregnant exercised control groups. The exercise consisted of treadmill running at 30 m/min on a 10 degree incline for 60 min, 5 days/wk. Pregnancy alone, on day 20 of gestation, decreased maternal liver glycogen content and increased red and white gastrocnemius muscle glycogen storage above control values (P less than 0.05). In contrast, exercise in nonpregnant animals augmented liver glycogen storage and also increased red and white gastrocnemius glycogen content (P less than 0.05). By combining exercise and pregnancy, the decrease in liver glycogen storage in the pregnant nonexercised condition was prevented in the pregnant runner group and more glycogen was stored in both the red and white portions of the gastrocnemius than all other groups (P less than 0.05). Fetal body weight was greatest (P less than 0.05) in the pregnant runner group and lowest (P less than 0.05) in the prepregnant exercise control group. These results demonstrate that chronic maternal exercise may change maternal glycogen storage patterns in the liver and skeletal muscle with some alteration in fetal outcome.
M F Mottola; P D Christopher
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of applied physiology (Bethesda, Md. : 1985)     Volume:  71     ISSN:  8750-7587     ISO Abbreviation:  J. Appl. Physiol.     Publication Date:  1991 Sep 
Date Detail:
Created Date:  1992-01-31     Completed Date:  1992-01-31     Revised Date:  2013-09-26    
Medline Journal Info:
Nlm Unique ID:  8502536     Medline TA:  J Appl Physiol (1985)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1015-9     Citation Subset:  IM    
Department of Anatomy, Faculty of Medicine, University of Western Ontario, Canada.
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MeSH Terms
Fetus / physiology
Glycogen / metabolism*
Gonadotropin-Releasing Hormone / pharmacology
Liver / anatomy & histology
Liver Glycogen / metabolism*
Muscles / metabolism*
Physical Conditioning, Animal*
Pregnancy, Animal / metabolism*
Rats, Inbred Strains
Reg. No./Substance:
0/Liver Glycogen; 33515-09-2/Gonadotropin-Releasing Hormone; 9005-79-2/Glycogen

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

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