| Effects of pregnancy on maternal work tolerance. | |
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MedLine Citation:
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PMID: 15981789 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This review summarizes current information on the tolerance of healthy pregnant women and their fetuses to acute strenuous exertion. Maximal aerobic power, expressed in L x min(-1), is not significantly affected in women who maintain an active lifestyle, whereas values expressed in ml x kg(-1) x min(-1) decline with advancing gestational age in relation to maternal/fetal weight gain. Efficiency during standard exercise testing and the ventilatory anaerobic threshold (Tvent) also appear to be unaffected by pregnancy, but the ability to utilize carbohydrate and exercise anaerobically during brief strenuous exercise may be reduced. Fetal responses to short strenuous exercise are usually moderate and revert to baseline values within approximately 30 min postexercise. Future studies should examine alveolar gas exchange kinetics at the start of exercise and during recovery from both moderate and strenuous exertion. Existing studies of the responses of pregnant women to prolonged exercise have focused primarily on substrate utilization and glucose homeostasis. Other maternal responses to prolonged exercise that should be examined include acid-base regulation, temperature regulation, fluid and electrolyte balance, and perception of effort. Fetal reactions should also be examined in relation to maternal responses. Until evidence-based, occupation-specific guidelines become available, it is recommended that pregnant women use the Joint SOGC/CSEP Clinical Practice Guideline: Exercise in Pregnancy and the Postpartum Period, published by the Society of Obstetricians and Gynaecologists of Canada and the Canadian Society for Exercise Physiology (2003). |
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Authors:
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Larry A Wolfe; Sarah A Charlesworth; Nicole M Glenn; Aaron P Heenan; Gregory A L Davies |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Review |
Journal Detail:
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Title: Canadian journal of applied physiology = Revue canadienne de physiologie appliquée Volume: 30 ISSN: 1066-7814 ISO Abbreviation: Can J Appl Physiol Publication Date: 2005 Apr |
Date Detail:
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Created Date: 2005-06-28 Completed Date: 2005-07-26 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 9306274 Medline TA: Can J Appl Physiol Country: United States |
Other Details:
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Languages: eng Pagination: 212-32 Citation Subset: IM |
Affiliation:
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School of Physical and Health Education, Queen's University, Kingston, Ontario, K7L 3N6. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological Animals Body Temperature Regulation Female Fetus / physiology* Heart Rate / physiology Heart Rate, Fetal / physiology Humans Middle Aged Physical Exertion / physiology Pregnancy / physiology* Pulmonary Gas Exchange |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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