Effect of exercise on uterine blood flow in the pregnant Pygmy goat.

Alan (Roger) Hohimer, J. M. Bissonnette, J. Metcalfe, T. A. McKean

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Pygmy goats in the last third of pregnancy were trained to walk on a treadmill at rates up to 2.0 mph and up an inclination of 0-15 degrees. Electromagnetic flowmeters were placed unilaterally on a uterine artery, and measurements were made while the goats were standing quietly on the treadmill and during 5 min of exercise. Blood flow fell during exercise in all five animals studied, and this reduction was proportional to the level of exertion. At the highest level of exercise that these animals would voluntarily perform, uterine artery blood flow fell by 32 +/- 3 (SE) % (P less than 0.001) from control. In four additional animals the radioactive microsphere technique was used to measure uterine blood flow at rest and after 5-7 min of exercise. In these animals, exercise caused total uterine blood flow to fall by 18 +/- 10%; cotyledonary (placental) blood flow fell by 8 +/- 13%, while myoendometrial blood flow decreased by 52 +/- 12% (P less than 0.05). Thus nonplacental portions of the pregnant Pygmy goat uterus suffer major reductions in blood flow during exercise. This vasoconstriction may be due to exercise per se or to concomitant hypocapnia or hyperthermia. Singleton and twin kids born to animals that exercised were of normal birth weight.

Original languageEnglish (US)
JournalThe American journal of physiology
Volume246
Issue number2 Pt 2
StatePublished - Feb 1984

Fingerprint

Goats
Uterine Artery
Hypocapnia
Flowmeters
Electromagnetic Phenomena
Vasoconstriction
Microspheres
Birth Weight
Uterus
Fever
Pregnancy

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Hohimer, A. R., Bissonnette, J. M., Metcalfe, J., & McKean, T. A. (1984). Effect of exercise on uterine blood flow in the pregnant Pygmy goat. The American journal of physiology, 246(2 Pt 2).

Effect of exercise on uterine blood flow in the pregnant Pygmy goat. / Hohimer, Alan (Roger); Bissonnette, J. M.; Metcalfe, J.; McKean, T. A.

In: The American journal of physiology, Vol. 246, No. 2 Pt 2, 02.1984.

Research output: Contribution to journalArticle

Hohimer, AR, Bissonnette, JM, Metcalfe, J & McKean, TA 1984, 'Effect of exercise on uterine blood flow in the pregnant Pygmy goat.', The American journal of physiology, vol. 246, no. 2 Pt 2.
Hohimer AR, Bissonnette JM, Metcalfe J, McKean TA. Effect of exercise on uterine blood flow in the pregnant Pygmy goat. The American journal of physiology. 1984 Feb;246(2 Pt 2).
Hohimer, Alan (Roger) ; Bissonnette, J. M. ; Metcalfe, J. ; McKean, T. A. / Effect of exercise on uterine blood flow in the pregnant Pygmy goat. In: The American journal of physiology. 1984 ; Vol. 246, No. 2 Pt 2.
@article{cd879dc42f524ba2b1749d9ce540e3dd,
title = "Effect of exercise on uterine blood flow in the pregnant Pygmy goat.",
abstract = "Pygmy goats in the last third of pregnancy were trained to walk on a treadmill at rates up to 2.0 mph and up an inclination of 0-15 degrees. Electromagnetic flowmeters were placed unilaterally on a uterine artery, and measurements were made while the goats were standing quietly on the treadmill and during 5 min of exercise. Blood flow fell during exercise in all five animals studied, and this reduction was proportional to the level of exertion. At the highest level of exercise that these animals would voluntarily perform, uterine artery blood flow fell by 32 +/- 3 (SE) {\%} (P less than 0.001) from control. In four additional animals the radioactive microsphere technique was used to measure uterine blood flow at rest and after 5-7 min of exercise. In these animals, exercise caused total uterine blood flow to fall by 18 +/- 10{\%}; cotyledonary (placental) blood flow fell by 8 +/- 13{\%}, while myoendometrial blood flow decreased by 52 +/- 12{\%} (P less than 0.05). Thus nonplacental portions of the pregnant Pygmy goat uterus suffer major reductions in blood flow during exercise. This vasoconstriction may be due to exercise per se or to concomitant hypocapnia or hyperthermia. Singleton and twin kids born to animals that exercised were of normal birth weight.",
author = "Hohimer, {Alan (Roger)} and Bissonnette, {J. M.} and J. Metcalfe and McKean, {T. A.}",
year = "1984",
month = "2",
language = "English (US)",
volume = "246",
journal = "American Journal of Physiology - Renal Fluid and Electrolyte Physiology",
issn = "1931-857X",
publisher = "American Physiological Society",
number = "2 Pt 2",

}

TY - JOUR

T1 - Effect of exercise on uterine blood flow in the pregnant Pygmy goat.

AU - Hohimer, Alan (Roger)

AU - Bissonnette, J. M.

AU - Metcalfe, J.

AU - McKean, T. A.

PY - 1984/2

Y1 - 1984/2

N2 - Pygmy goats in the last third of pregnancy were trained to walk on a treadmill at rates up to 2.0 mph and up an inclination of 0-15 degrees. Electromagnetic flowmeters were placed unilaterally on a uterine artery, and measurements were made while the goats were standing quietly on the treadmill and during 5 min of exercise. Blood flow fell during exercise in all five animals studied, and this reduction was proportional to the level of exertion. At the highest level of exercise that these animals would voluntarily perform, uterine artery blood flow fell by 32 +/- 3 (SE) % (P less than 0.001) from control. In four additional animals the radioactive microsphere technique was used to measure uterine blood flow at rest and after 5-7 min of exercise. In these animals, exercise caused total uterine blood flow to fall by 18 +/- 10%; cotyledonary (placental) blood flow fell by 8 +/- 13%, while myoendometrial blood flow decreased by 52 +/- 12% (P less than 0.05). Thus nonplacental portions of the pregnant Pygmy goat uterus suffer major reductions in blood flow during exercise. This vasoconstriction may be due to exercise per se or to concomitant hypocapnia or hyperthermia. Singleton and twin kids born to animals that exercised were of normal birth weight.

AB - Pygmy goats in the last third of pregnancy were trained to walk on a treadmill at rates up to 2.0 mph and up an inclination of 0-15 degrees. Electromagnetic flowmeters were placed unilaterally on a uterine artery, and measurements were made while the goats were standing quietly on the treadmill and during 5 min of exercise. Blood flow fell during exercise in all five animals studied, and this reduction was proportional to the level of exertion. At the highest level of exercise that these animals would voluntarily perform, uterine artery blood flow fell by 32 +/- 3 (SE) % (P less than 0.001) from control. In four additional animals the radioactive microsphere technique was used to measure uterine blood flow at rest and after 5-7 min of exercise. In these animals, exercise caused total uterine blood flow to fall by 18 +/- 10%; cotyledonary (placental) blood flow fell by 8 +/- 13%, while myoendometrial blood flow decreased by 52 +/- 12% (P less than 0.05). Thus nonplacental portions of the pregnant Pygmy goat uterus suffer major reductions in blood flow during exercise. This vasoconstriction may be due to exercise per se or to concomitant hypocapnia or hyperthermia. Singleton and twin kids born to animals that exercised were of normal birth weight.

UR - http://www.scopus.com/inward/record.url?scp=18344417615&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18344417615&partnerID=8YFLogxK

M3 - Article

VL - 246

JO - American Journal of Physiology - Renal Fluid and Electrolyte Physiology

JF - American Journal of Physiology - Renal Fluid and Electrolyte Physiology

SN - 1931-857X

IS - 2 Pt 2

ER -