Journal of Applied Physiology Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 73: 134-142, 1992;
8750-7587/92 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bonen, A.
Right arrow Articles by Beresford, P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bonen, A.
Right arrow Articles by Beresford, P.

Journal of Applied Physiology, Vol 73, Issue 1 134-142, Copyright © 1992 by American Physiological Society

ARTICLES

Substrate and endocrine responses during exercise at selected stages of pregnancy

A. Bonen, P. Campagna, L. Gilchrist, D. C. Young and P. Beresford
Department of Kinesiology, University of Waterloo, Ontario, Canada.

To determine whether the concomitant effects of pregnancy and exercise yield substrate and endocrine patterns different from those expected during exercise alone, we compared the responses of glucose, lactate, free fatty acids, insulin, epinephrine (EP), norepinephrine (NE), human chorionic gonadotropin (HCG), human placental lactogen (HPL), estriol, and progesterone (P) in nonpregnant women (NP; n = 7) and pregnant women in the second (TR2; n = 6) and third trimester (TR3; n = 8) of pregnancy, before, during, and after 30 min of bicycle ergometer exercise at heart rates of 130-140 beats/min. In general, all substrates and hormone concentrations increased with exercise (P less than 0.05), except insulin, which decreased (P less than 0.05), and HCG, which did not change (P = 0.08). Differences in selected hormone concentrations (P, estriol, HCG, and HPL) among groups were already present at rest because of the different stages of pregnancy. Differences among groups at rest were also found in insulin and NE (P less than 0.05). Significantly different responses to exercise (i.e., group x time interactions) were as follows. NP vs. TR2:P, estriol, HCG, HPL, EP, and NE (P less than 0.05); NP vs. TR3: glucose, EP, and NE (P less than 0.05); TR2 vs. TR3: lactate, EP, and NE (P less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
A. P. Heenan, L. A. Wolfe, G. A. L. Davies, and M. J. McGrath
Effects of human pregnancy on fluid regulation responses to short-term exercise
J Appl Physiol, December 1, 2003; 95(6): 2321 - 2327.
[Abstract] [Full Text]

Home page
 Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
K. P. O'Hagan and J. A. Alberts
Uterine artery blood flow and renal sympathetic nerve activity during exercise in rabbit pregnancy
Am J Physiol Regulatory Integrative Comp Physiol, November 1, 2003; 285(5): R1135 - R1144.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
N. D. Avery, L. A. Wolfe, C. E. Amara, G. A. L. Davies, and M. J. McGrath
Effects of human pregnancy on cardiac autonomic function above and below the ventilatory threshold
J Appl Physiol, January 1, 2001; 90(1): 321 - 328.
[Abstract] [Full Text] [PDF]

Home page
 Obstet GynecolHome page
A. P. HEENAN, L. A. WOLFE, and G. A. L. DAVIES
Maximal Exercise Testing in Late Gestation: Maternal Responses
Obstet. Gynecol., January 1, 2001; 97(1): 127 - 134.
[Abstract] [Full Text] [PDF]

Home page
 Obstet GynecolHome page
A. MACPHAIL, G. A. L. DAVIES, R. VICTORY, and L. A. WOLFE
Maximal Exercise Testing in Late Gestation: Fetal Responses
Obstet. Gynecol., October 1, 2000; 96(4): 565 - 570.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online