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Skeletal Muscle Sympathetic Vasocons...

Jendzjowsky, Nicholas G.

Skeletal Muscle Sympathetic Vasoconstrictor Control Following Short-Term Mild- and Heavy-Intensity Exercise Training.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Skeletal Muscle Sympathetic Vasoconstrictor Control Following Short-Term Mild- and Heavy-Intensity Exercise Training.
Author:	Jendzjowsky, Nicholas G.
Description:	160 p.
Notes:	Source: Dissertation Abstracts International, Volume: 75-06(E), Section: A.
Contained By:	Dissertation Abstracts International75-06A(E).
Subject:	Recreation.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NS27580
ISBN:	9780499275806

Skeletal Muscle Sympathetic Vasoconstrictor Control Following Short-Term Mild- and Heavy-Intensity Exercise Training.
Jendzjowsky, Nicholas G.

Skeletal Muscle Sympathetic Vasoconstrictor Control Following Short-Term Mild- and Heavy-Intensity Exercise Training. - 160 p.

Source: Dissertation Abstracts International, Volume: 75-06(E), Section: A.

Thesis (Ph.D.)--University of Alberta (Canada), 2013.

This item must not be sold to any third party vendors.

The purpose of this thesis was to investigate the effects of short-term endurance exercise training (ET) on sympathetic vasoconstriction in resting and contracting skeletal muscle. To achieve these aims, rats were exercise trained on a motorized treadmill and an anesthetised whole animal in situ vascular preparation was used to investigate the effects of ET on sympathetic vascular control in resting and contracting skeletal muscle.

ISBN: 9780499275806Subjects--Topical Terms:

201907
Recreation.

Skeletal Muscle Sympathetic Vasoconstrictor Control Following Short-Term Mild- and Heavy-Intensity Exercise Training.
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100 1 $a Jendzjowsky, Nicholas G. $3 708825
245 1 0 $a Skeletal Muscle Sympathetic Vasoconstrictor Control Following Short-Term Mild- and Heavy-Intensity Exercise Training.
300 $a 160 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-06(E), Section: A.
502 $a Thesis (Ph.D.)--University of Alberta (Canada), 2013.
506 $a This item must not be sold to any third party vendors.
520 $a The purpose of this thesis was to investigate the effects of short-term endurance exercise training (ET) on sympathetic vasoconstriction in resting and contracting skeletal muscle. To achieve these aims, rats were exercise trained on a motorized treadmill and an anesthetised whole animal in situ vascular preparation was used to investigate the effects of ET on sympathetic vascular control in resting and contracting skeletal muscle.
520 $a Exercise training augmented resting sympathetic vasoconstrictor responsiveness in a training intensity-dependent manner. Concurrently, endothelium-dependent vasodilation was augmented in a training intensity-dependent manner and significantly correlated to the magnitude of sympathetic vasoconstrictor responsiveness.
520 $a During acute exercise sympathetic outflow is increased however the vascular response to sympathetic stimulation is diminished and aids in the regulation of skeletal muscle blood flow; a physiologic phenomenon termed functional sympatholysis. The inhibition of sympathetic vasoconstriction during muscular contraction was augmented in a manner influenced by the intensity of ET through a nitric oxide-dependent mechanism.
520 $a Given the increased resting sympathetic vasoconstrictor responsiveness and enhanced sympatholysis following training, it was hypothesized that ET may mediate these effects, in part, by an altered contribution of post-synaptic alpha 2- adrenergic receptors to the regulation of sympathetic vasoconstriction. Exercise training significantly augmented the contribution of alpha 2-adrenergic receptor to basal sympathetic vasoconstriction. During contraction the alpha2-adrenergic receptor was relatively resistant to inhibition. The ET induced increase in sympatholysis was mediated, in part, by the inhibition of the alpha1-adrenergic receptor through a nitric oxide-dependent mechanism.
520 $a Collectively, these results highlight the integrated nature of ET mediated adaptations to sympathetic regulation of skeletal muscle vascular conductance and the plasticity of sympathetic regulation of skeletal muscle vascular conductance.
590 $a School code: 0351.
650 4 $a Recreation. $3 201907
690 $a 0814
710 2 $a University of Alberta (Canada). $b Physical Education and Recreation. $3 603388
773 0 $t Dissertation Abstracts International $g 75-06A(E).
790 $a 0351
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NS27580